Relevant bibliographies by topics / Fiber optic distributed temperature sensing

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Fiber optic distributed temperature sensing'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Fiber optic distributed temperature sensing.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Fiber optic distributed temperature sensing"

1

OKAMOTO, Kazuhiro. "Special Issue on Fiber-Optics. Fiber-Optic Distributed-Temperature Sensing." Review of Laser Engineering 22, no. 4 (1994): 276–83. http://dx.doi.org/10.2184/lsj.22.276.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Roman, Muhammad, Damilola Balogun, Yiyang Zhuang, Rex E. Gerald, Laura Bartlett, Ronald J. O’Malley, and Jie Huang. "A Spatially Distributed Fiber-Optic Temperature Sensor for Applications in the Steel Industry." Sensors 20, no. 14 (July 13, 2020): 3900. http://dx.doi.org/10.3390/s20143900.

Full text
Abstract:
This paper presents a spatially distributed fiber-optic sensor system designed for demanding applications, like temperature measurements in the steel industry. The sensor system employed optical frequency domain reflectometry (OFDR) to interrogate Rayleigh backscattering signals in single-mode optical fibers. Temperature measurements employing the OFDR system were compared with conventional thermocouple measurements, accentuating the spatially distributed sensing capability of the fiber-optic system. Experiments were designed and conducted to test the spatial thermal mapping capability of the fiber-optic temperature measurement system. Experimental simulations provided evidence that the optical fiber system could resolve closely spaced temperature features, due to the high spatial resolution and fast measurement rates of the OFDR system. The ability of the fiber-optic system to perform temperature measurements in a metal casting was tested by monitoring aluminum solidification in a sand mold. The optical fiber, encased in a stainless steel tube, survived both mechanically and optically at temperatures exceeding 700 °C. The ability to distinguish between closely spaced temperature features that generate information-rich thermal maps opens up many applications in the steel industry.
APA, Harvard, Vancouver, ISO, and other styles
3

Orrell, Peter R. "DISTRIBUTED FIBRE OPTIC TEMPERATURE SENSING." Sensor Review 12, no. 2 (February 1992): 27–31. http://dx.doi.org/10.1108/eb007876.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pan Liang, 潘亮, 刘琨 Liu Kun, 江俊峰 Jiang Junfeng, 马春宇 Ma Chunyu, 马鹏飞 Ma Pengfei, and 刘铁根 Liu Tiegen. "Distributed Fiber-Optic Vibration and Temperature Sensing System." Chinese Journal of Lasers 45, no. 1 (2018): 0110002. http://dx.doi.org/10.3788/cjl201845.0110002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Thomas, Christoph K., Jannis-Michael Huss, Mohammad Abdoli, Tim Huttarsch, and Johann Schneider. "Solid-Phase Reference Baths for Fiber-Optic Distributed Sensing." Sensors 22, no. 11 (June 2, 2022): 4244. http://dx.doi.org/10.3390/s22114244.

Full text
Abstract:
Observations from Raman backscatter-based Fiber-Optic Distributed Sensing (FODS) require reference sections of the fiber-optic cable sensor of known temperature to translate the primary measured intensities of Stokes and anti-Stokes photons to the secondary desired temperature signal, which also commonly forms the basis for other derived quantities. Here, we present the design and the results from laboratory and field evaluations of a novel Solid-Phase Bath (SoPhaB) using ultrafine copper instead of the traditional mechanically stirred liquid-phase water bath. This novel type is suitable for all FODS applications in geosciences and industry when high accuracy and precision are needed. The SoPhaB fully encloses the fiber-optic cable which is coiled around the inner core and surrounded by tightly interlocking parts with a total weight of 22 kg. The SoPhaB is thermoelectrically heated and/or cooled using Peltier elements to control the copper body temperature within ±0.04 K using commercially available electronic components. It features two built-in reference platinum wire thermometers which can be connected to the distributed temperature sensing instrument and/or external measurement and logging devices. The SoPhaB is enclosed in an insulated carrying case, which limits the heat loss to or gains from the outside environment and allows for mobile applications. For thermally stationary outside conditions the measured spatial temperature differences across SoPhaB parts touching the fiber-optic cable are <0.05 K even for stark contrasting temperatures of ΔT> 40 K between the SoPhaB’s setpoint and outside conditions. The uniform, stationary known temperature of the SoPhaB allows for substantially shorter sections of the fiber-optic cable sensors of less than <5 bins at spatial measurement resolution to achieve an even much reduced calibration bias and spatiotemporal uncertainty compared to traditional water baths. Field evaluations include deployments in contrasting environments including the Arctic polar night as well as peak summertime conditions to showcase the wide range of the SoPhaB’s applicability.
APA, Harvard, Vancouver, ISO, and other styles
6

de Jong, S. A. P., J. D. Slingerland, and N. C. van de Giesen. "Fiber optic distributed temperature sensing for the determination of air temperature." Atmospheric Measurement Techniques Discussions 7, no. 6 (June 23, 2014): 6287–98. http://dx.doi.org/10.5194/amtd-7-6287-2014.

Full text
Abstract:
Abstract. This paper describes a method to correct for the effect of solar radiation in atmospheric Distributed Temperature Sensing (DTS) applications. By using two cables with different diameters, one can determine what temperature a zero diameter cable would have. Such virtual cable would not be affected by solar heating and would take on the temperature of the surrounding air. The results for a pair of black cables and a pair of white cables were very good. The correlations between standard air temperature measurements and air temperatures derived from both colors had a high correlation coefficient (r2 = 0.99). A thin white cable measured temperatures that were close to air temperature. The temperatures were measured along horizontal cables but the results are especially interesting for vertical atmospheric profiling.
APA, Harvard, Vancouver, ISO, and other styles
7

de Jong, S. A. P., J. D. Slingerland, and N. C. van de Giesen. "Fiber optic distributed temperature sensing for the determination of air temperature." Atmospheric Measurement Techniques 8, no. 1 (January 15, 2015): 335–39. http://dx.doi.org/10.5194/amt-8-335-2015.

Full text
Abstract:
Abstract. This paper describes a method to correct for the effect of solar radiation in atmospheric distributed temperature sensing (DTS) applications. By using two cables with different diameters, one can determine what temperature a zero diameter cable would have. Such a virtual cable would not be affected by solar heating and would take on the temperature of the surrounding air. With two unshielded cable pairs, one black pair and one white pair, good results were obtained given the general consensus that shielding is needed to avoid radiation errors (WMO, 2010). The correlations between standard air temperature measurements and air temperatures derived from both cables of colors had a high correlation coefficient (r2=0.99) and a RMSE of 0.38 °C, compared to a RMSE of 2.40 °C for a 3.0 mm uncorrected black cable. A thin white cable measured temperatures that were close to air temperature measured with a nearby shielded thermometer (RMSE of 0.61 °C). The temperatures were measured along horizontal cables with an eye to temperature measurements in urban areas, but the same method can be applied to any atmospheric DTS measurements, and for profile measurements along towers or with balloons and quadcopters.
APA, Harvard, Vancouver, ISO, and other styles
8

Denney, Dennis. "Real-Time Fiber-Optic Distributed Temperature Sensing: Oilfield Applications." Journal of Petroleum Technology 59, no. 09 (September 1, 2007): 65–66. http://dx.doi.org/10.2118/0907-0065-jpt.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Carpenter, Chris. "SAGD and Fiber-Optic Distributed Acoustic and Temperature Sensing." Journal of Petroleum Technology 68, no. 09 (September 1, 2016): 78–80. http://dx.doi.org/10.2118/0916-0078-jpt.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Becker, Matthew W., Brian Bauer, and Adam Hutchinson. "Measuring Artificial Recharge with Fiber Optic Distributed Temperature Sensing." Groundwater 51, no. 5 (October 30, 2012): 670–78. http://dx.doi.org/10.1111/j.1745-6584.2012.01006.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Fiber optic distributed temperature sensing"

1

Liu, Bo. "Sapphire Fiber-based Distributed High-temperature Sensing System." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/82741.

Full text
Abstract:
From the monitoring of deep ocean conditions to the imaging and exploration of the vast universe, optical sensors are playing a unique, critical role in all areas of scientific research. Optical fiber sensors, in particular, are not only widely used in daily life such as for medical inspection, structural health monitoring, and environmental surveillance, but also in high-tech, high-security applications such as missile guidance or monitoring of aircraft engines and structures. Measurements of physical parameters are required in harsh environments including high pressure, high temperature, highly electromagnetically-active and corrosive conditions. A typical example is fossil fuel-based power plants. Unfortunately, current optical fiber sensors for high-temperature monitoring can work only for single point measurement, as traditional fully-distributed temperature sensing techniques are restricted for temperatures below 800°C due to the limitation of the fragile character of silica fiber under high temperature. In this research, a first-of-its-kind technology was developed which pushed the limits of fully distributed temperature sensing (DTS) in harsh environments by exploring the feasibility of DTS in optical sapphire waveguides. An all sapphire fiber-based Raman DTS system was demonstrated in a 3-meters long sapphire fiber up to a temperature of 1400°C with a spatial resolution of 16.4cm and a standard deviation of a few degrees Celsius. In this dissertation, the design, fabrication, and testing of the sapphire fiber-based Raman DTS system are discussed in detail. The plan and direction for future work are also suggested with an aim for commercialization.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
2

Huang, Zhengyu. "Quasi-Distributed Intrinsic Fabry-Perot Interferometric Fiber Sensor for Temperature and Strain Sensing." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/26247.

Full text
Abstract:
The motivation of this research is to meet the growing demand for the measurand high-resolution, high-spatial resolution, attenuation insensitive and low-cost quasi-distributed temperature and strain sensors that can reliably work under harsh environment or in extended structures. There are two main drives for distributed fiber sensor research. The first is to lower cost-per-sensor so that the fiber sensors may become price-competitive against electrical sensors in order to gain widespread acceptance. The second is to obtain spatial distribution of the measurand. This dissertation presents detailed research on the design, modeling, analysis, system implementation, sensor fabrication, performance evaluation, sensor field test and noise analysis of a quasi-distributed intrinsic Fabry-Perot interferometric (IFPI) fiber sensor suitable for temperature and strain measurement. For the first time to our knowledge, an IFPI sensor using a different type of fiber spliced in between two single-mode fibers is proposed and tested. The proposed sensor has high measurement accuracy, excellent repeatability, a large working range and a low insertion-loss. It requests no annealing after the sensor is made, and the sensor is calibration-free. The sensor fabrication is low-cost and has a high yield rate. The goal for this research is to bring this sensor to a level where it will become commercially viable for quasi-distributed sensing applications.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
3

Marruedo, Arricibita Amaya Irene. "Upscaling of Lacustrine Groundwater Discharge by Fiber Optic Distributed Temperature Sensing and Thermal Infrared imaging." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19365.

Full text
Abstract:
Der Zustrom von Grundwasser zu Seen (lacustrine groundwater discharge, LGD) kann signifikante Auswirkungen auf Qualität und Quantität des Seewassers haben. Viele Ansätze zur Identifikation und Quantifizierung von LGD basieren auf Temperaturunterschieden zwischen Grund- und Seewasser und der Messung des damit einhergehenden Wärmetransports. Ziel der Doktorarbeit ist es, Signalfortpflanzung und -ausbreitung des Grundwasserzustroms von der Punktskala an der Sediment-Wasser-Grenzfläche über den Wasserkörper bis zur Grenzfläche Wasseroberfläche-Atmosphäre zu untersuchen. Getestet wird die Hypothese, dass das im Verhältnis zum Umgebungswasser wärmere und daher leichtere Grundwasser in der kalten Wassersäule aufsteigt und die Detektion von LGD an der Wasseroberfläche mit thermalen Infrarot Aufnahmen (TIR) erlaubt. Zunächst wird mit der hierarchical patch dynamics ein Konzept entwickelt, das eine angemessene Kombination multipler Techniken zur Erfassung von Wärme- und Wasserflüssen anbietet (Kap. 2). Dabei werden verschiedene räumliche Skalen und ökohydrologische Grenzflächen abgedeckt. Darauf basierend werden in einem Mesokosmos-Experiment unterschiedliche LGD-Raten durch den Zustrom von warmem Wasser am Grund eines Outdoor-Pools simuliert (Kap. 3 und 4). Ein Glasfaserkabel (fibre-optic distributed temperature sensing, FO-DTS) wird in verschiedenen Tiefen installiert, um das Wärmesignal des Grundwasserzustroms unter verschiedenen Bedingungen zu verfolgen. Mit einer TIR-Kamera wird die Temperatur des Oberflächenwassers aufgezeichnet. Die Aufnahmen werden mit FO-DTS-Temperaturen von 2 cm unter der Wasseroberfläche validiert. Die Anwendung von TIR und FO-DTS ermöglicht die Detektion von LGD in der Wassersäule und an der Grenzfläche Wasseroberfläche-Atmosphäre. Wolkenbedeckung und der Tagesgang der Netto-Strahlung kontrollieren den Auftrieb von LGD und die Zuverlässigkeit der TIR-Ergebnisse. Die besten Ergebnisse werden bei Bewölkung und nachts erzielt.
Lacustrine groundwater discharge (LGD) can have significant impacts on lake water quantity and quality. There is a need to understand LGD mechanisms and to improve measurement methods for LGD. Approaches to identify and quantify LGD are based on significant temperature differences between GW and lake water. The main goal of this PhD thesis is to trace heat signal propagation of LGD from the point scale at the sediment-water interface across the overlying water body to the water surface-atmosphere interface. The PhD thesis tests the hypothesis that the positive buoyancy of warm GW causes upwelling across the cold water column and allows detection of LGD at the water surface by thermal infrared imaging (TIR). First, a general conceptual framework is developed based on hierarchical patch dynamics (HPD). It guides researchers on adequately combining multiple heat tracing techniques to identify and quantify heat and water exchange over several spatial scales and ecohydrological interfaces (Chapter 2). Second, the conceptual framework is used for the design of a mesocosm experiment (Chapters 3 and 4). Different LGD rates were simulated by injecting relatively warm water at the bottom of an outdoor mesocosm. A fiber optic distributed temperature sensing (FO-DTS) cable was installed in a 3D setup in the water column to trace the heat signal of the simulated LGD under different weather conditions and over entire diurnal cycles. Finally, a TIR camera was mounted 4 meters above the mesocosm to monitor water surface temperatures. TIR images were validated using FO-DTS temperature data 2 cm below the water surface (Chapter 4). The positive buoyancy of relatively warm LGD allows the detection of GW across the water column and at the water surface-atmosphere interface by FO-DTS and TIR. Cloud cover and diurnal cycle of net radiation strongly control the upwelling of simulated LGD and the reliability of TIR for detection of LGD at the water surface-atmosphere interface. Optimal results are obtained under overcast conditions and during night.
APA, Harvard, Vancouver, ISO, and other styles
4

Wang, Haichao. "A fibre optic system for distributed temperature sensing based on raman scattering." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5498.

Full text
Abstract:
This thesis is based on a research project to monitor the temperature profile along a power cable using the fibre optic Distributed Temperature Sensing (DTS) technology. Based on the temperature measured by a DTS system, real time condition monitoring of power cables can be achieved. In this thesis, there are three main research themes. 1. Develop a DTS system for industrial applications. The entire hardware system and measuring software are developed to be an industrial product. Multiple functions are provided for the convenience of users to conduct temperature monitoring, temperature history logging and off-line simulation. 2. Enhance the robustness of the DTS system. An algorithm for signal compensation is developed to eliminate the signal fluctuation due to disturbance from the hardware and its working environment. It ensures robustness of the system in industrial environments and applicability to different system configurations. 3. Improve the accuracy of the DTS system. A calibration algorithm based on cubic spline fitting is developed to cope with non-uniform fibre loss in the system, which greatly improved the accuracy of the temperature decoding in real applications with unavoidable nonlinear characteristics. The developed DTS system and the algorithms have been verified by continuous experiments for about one year and achieved a temperature resolution of 0.1 degree Celsius, a spatial resolution of 1 meter, and a maximum error of 2 degree Celsius in an optic fibre with the length of 2910 metres.
APA, Harvard, Vancouver, ISO, and other styles
5

Allen, Emily. "Fiber Optic Distributed Temperature Sensing and Vadose Zone Measurements in Mini Anaheim Recharge Basin Orange County, California." Thesis, California State University, Long Beach, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10978729.

Full text
Abstract:

Managed Aquifer Recharge (MAR) systems have become an increasingly important approach to the management of groundwater in Southern California in recent years. This thesis describes an experimental investigation of the vadose zone dynamics beneath a recharge basin used by the Orange County Water District. Soil moisture probes, pressure transducers, and fiber optic distributed temperature sensing (FODTS) at multiple depths beneath the basin were used to monitor infiltration. The purpose was to measure the diurnal temperature flux using heat as a tracer of infiltrating water to gain insight on the influence of basin stage (i.e., water level) on infiltration rate. To increase the temperature resolution from the standard 1 m, we installed a wrapped fiber optic cable at two locations using direct push technology. The wrapped FODTS cable was spliced to a trenched cable that ran laterally across the basin at depths of 30 cm and 1 m, installed during a previous experiment. The wrapped cable was then installed vertically at two locations to observe both the spatial distribution and vertical dynamics of fluid flow at 10 cm intervals. Propagation of the diurnal heat flux at the surface was related to water velocity. The infiltration behavior was affected by subtle changes in stratigraphy below the basin. The heat tracer suggests strong components of horizontal flow due to the presence of thin fine-grained hydrostratigraphic units. Water movement during initial saturation was particularly complex and suggested that simple one-dimensional vertical flow models will not accurately predict infiltration rates. The FODTS system provided high-resolution dynamic imaging of percolation that is not possible using a multi-level transducer system.

APA, Harvard, Vancouver, ISO, and other styles
6

Ellis, Weston. "Determining Spatial and Temporal Variability of Percolation Rates from a River-Side Recharge Basin Using Fiber Optic Distributed Temperature Sensing." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10743513.

Full text
Abstract:

Percolation rates in Managed Aquifer Recharge (MAR) facilities, such as recharge basins and stream channels, can vary widely through both time and space. Natural variations in sediment hydraulic conductivity can create “dead zones” in which percolation rates are negligible. Clogging is a constant problem, leading to decays in facility percolation rates. Measuring percolation rate variations is important for management, maintenance, and remediation of surface MAR facilities.

We have used Fiber Optic Distributed Temperature Sensing (FODTS) to monitor percolation in a long narrow river channel separated from an active river by a levee. The alluvial sediment in the river channel varies widely in texture and water balance is difficult to monitor independently. The off-river channel was monitored by installing a fiber optic cable in the subsurface and measuring the propagation rate of the diurnal temperature oscillations carried downward with infiltrating water. In this way, heat was used as a tracer of percolation rates along the section defined by the 1800 meters of buried cable. We were able to confirm the FODTS measurements of percolation in the Off River Channel and demonstrate its wide applicability. Results from the measurements have been used to understand both the hydraulic behavior of percolation in the facilities and to make management decisions regarding facility operations and the potential need for additional surface sediment remediation.

APA, Harvard, Vancouver, ISO, and other styles
7

Shen, Fabin. "UV-Induced Intrinsic Fabry-Perot Interferometric Fiber Sensors and Their Multiplexing for Quasi-Distributed Temperature and Strain Sensing." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/28053.

Full text
Abstract:
Distributed temperature and strain sensing is demanded for a wide range of applications including real-time monitoring of industrial processes, health monitoring of civil infrastructures, etc. Optical fiber distributed sensors have attracted tremendous research interests in the past decade to meet the requirements of such applications. This research presents a multiplexed sensor array for distributed temperature and strain sensing that can multiplex a large number of UV-induced sensors along a single fiber. The objective of this research is to develop a quasi-distributed sensing technology that will greatly increase the multiplexing capacity of a sensor network and can measure temperature and strain with a high accuracy and high resolution. UV-induced intrinsic Fabry-Perot interferometric (IFPI) optical fiber sensors, which have low reflectance and low power loss, are good candidates for multiplexed sensors networks. Partial reflectors are constructed by irradiating photosensitive fiber with a UV laser beam. A pair of reflectors will form a Fabry-Perot interferometer that can be used for temperature and strain sensing. A sensor fabrication system based on a pulsed excimer laser and a shadow mask is developed. A spectrum-based measurement system is presented to measure the interference fringes of IFPI sensors. A swept coherent light source is used as the light source. The spectral responses of the IFPI sensors at different wavelengths are measured. A frequency division multiplexing (FDM) scheme is proposed. Multiple sensors with different optical path differences (OPD) have different sub-carrier frequencies in the measured spectrum of the IFPI sensors. The multiplexing capacity of the sensor system and the crosstalk between sensors are analyzed. Frequency estimation based digital signal processing algorithms are developed to determine the absolute OPDs of the IFPI sensors. Digital filters are used to select individual frequency components and filter out the noise. The frequency and phase of the filtered signal are estimated by means of peak finding and phase linear regression methods. The performance of the signal processing algorithms is analyzed. Experimental results for temperature and strain measurement are demonstrated. The discrimination of the temperature and strain cross sensitivity is investigated. Experimental results show that UV-induced IFPI sensors in a FDM scheme have good measurement accuracy for temperature and strain sensing and potentially have a large multiplexing capacity.
Ph. D.
APA, Harvard, Vancouver, ISO, and other styles
8

Reinsch, Thomas [Verfasser]. "Structural integrity monitoring in a hot geothermal well using fibre optic distributed temperature sensing / Thomas Reinsch." Clausthal-Zellerfeld : Universitätsbibliothek Clausthal, 2012. http://d-nb.info/1028623232/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Nützmann, Gunnar [Gutachter], Jörg [Gutachter] Lewandowski, and Jan [Gutachter] Fleckenstein. "Upscaling of Lacustrine Groundwater Discharge by Fiber Optic Distributed Temperature Sensing and Thermal Infrared imaging / Gutachter: Gunnar Nützmann, Jörg Lewandowski, Jan Fleckenstein." Berlin : Humboldt-Universität zu Berlin, 2018. http://d-nb.info/1185579257/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Del, Val Alonso Laura. "Advancing in the characterization of coastal aquifers : a multimethodological approach based on fiber optics distributed temperature sensing." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/672709.

Full text
Abstract:
Detailed characterization of coastal aquifers is essential for proper management of coastal groundwater resources, and coastal areas in general. Still, there is a general lack of systematic monitoring and detailed characterization of the seawater intrusion (SWI). Part of this lack is related to the limitations of traditional tools and methodologies. In this thesis we aim to provide new approaches and methodologies for the characterization of coastal aquifers, and in particular for the SWI dynamics. At a first stage, three relatively new monitoring systems were tested to characterise the SWI: Cross-Hole Electric Resistivity Tomography (CHERT), Time Laps Induction Logging (TLIL) and Fiber Optics Distribute Temperature Sensing (FO-DTS). We did that by installing the fiber optic cable and CHERT electrodes outside the borehole casing, and allowing to deploy additional tools through the borehole. This multipurpose approach allowed to deploy multiple tools in parallel, decreasing installation costs and improving characterization by combining complementary information. In fact the combination of the three methods allowed to discern different levels of SWI and multiple dynamics. From these techniques we were interested in further exploring the use of FO-DTS. However, before that we had to study the use of temperature as a tracer of the SWI. Although the fundamentals of heat transport in groundwater are well known, the use of temperature as a natural tracer for SWI is limited. Numerical modelling was used to explore the potential of temperature for studying SWI dynamics at field scale. The results were used to propose a framework for the interpretation of thermal data at the SWI. The framework gives guidelines to identify preferential paths of the SWI, flow direction and even roughly estimate groundwater flux rates, in multilayered coastal aquifers. We concluded that temperature has a potential for SWI motorisation largely unexplored. Based on the promising results from the modelling exercise, we tested the FO-DTS for monitoring of the SWI continuously during one year and a half. This is commonly called a passive application of the FO-DTS. We were able to identify different levels of the SWI, flow directions and short and long term dynamics. The interpretation confirmed the framework proposed previously. FO-DTS can also be used actively, thus by heating the fiber optic cable and measuring the evolution of the heating and cooling of the cable. An active FO-DTS application was designed to measure groundwater fluxes and thermal properties of the media. The obtained flux rates are in agreement with independent estimates. Further research is needed to adapt the analytical approach used for the interpretation of the heating curves to account for the effect of the heat storage in the cable material and surrounding elements. Still, the method shows great potential for its application in quantifying discharge fluxes towards the sea, and in general to quantify groundwater fluxes in porous media. Additionally, traditional methods for the interpretation of pumping testing data were revised. A new approach to extract drawdowns from measured heads during pumping in coastal aquifers is proposed. This approach ease and reinforce the use of this traditional hydraulic characterization technique in coastal aquifers. Many questions remain unanswered, and many others arise from the exploration of these new and traditional techniques. The wide range of information that can be obtained with FO-DTS well deserves more research, in order to facilitate its general use. The revision of traditional methods, such as the classic pumping test, or well-known theories, like the use of temperature as a natural tracer, may be necessary for their application in coastal aquifers. Still, the set of methods proposed in this document expands the tools and the resolution available to characterise the SWI, contributing to expand the available knowledge about coastal aquifers.
Una caracterización detallada de los acuíferos costeros es esencial para la gestión de los recursos hídricos costeros, y en general de las zonas costeras. A pesar de su importancia, en general no existe un monitoreo sistemático de la zona de intrusión salina (SWI). Parte de esta carencia se debe a limitaciones en las herramientas y metodologías tradicionalmente empleadas. El objetivo de esta tesis es proporcionar nuevos enfoques y herramientas para la caracterización de los acuíferos costeros, y en particular de la SWI. Inicialmente, tres sistemas de monitoreo fueron testados en campo para caracterizar la SWI: Cross-Hole Electric Resistivity Tomography (CHERT), Time Laps Induction Logging (TLIL) and Fiber Optics Distribute Temperature Sensing (FO-DTS). Para poder operar las tres herramientas en paralelo, el cable de fibra óptica y los electrodos de la CHERT se instalaron entre el entubado y el sedimento. De este modo redujimos costes de instalación y mejoramos el proceso de caracterización con la combinación de información complementarias. De hecho, la combinación de las tres permitió´ detectar diferentes niveles y dinámicas de la SWI. De estas tres técnicas, nos hemos querido concentrar en explorar el uso de la FO-DTS para el monitoreo de acuíferos costeros. Sin embargo, antes de todo tuvimos que estudiar el uso de la temperatura como trazador de la SWI. A pesar de que los fundamentos del transporte de calor en agua subterránea están establecidos, el uso de la temperatura como trazador natural de la SWI es limitado. Para estudiar la SWI se han hecho dos modelos numéricos. De los resultados obtenidos surge un posible marco teórico para la interpretación de datos térmicos de la SWI. Usando la distribución vertical de temperaturas podríamos diferenciar niveles de SWI, la dirección de flujo, e incluso aproximar la velocidad del mismo. Con estos resultados llegamos a la conclusión de que el uso de la temperatura para el seguimiento de la SWI tiene todavía un gran potencial sin explorar. Basándonos en estos resultados testamos la FO-DTS para el monitoreo de la SWI en nuestro emplazamiento experimental durante un año y medio. Los datos obtenidos con la FO_DTS permitieron identificar la respuesta de la SWI a eventos a distintas escala temporales. De este modo, los datos confirmaron las conclusiones obtenidas con los modelos numéricos. La FO-DTS puede ser usada también de forma activa, es decir, calentando el cable de fibra óptica y midiendo el calentamiento y posterior enfriamiento. En la tesis proponemos una metodología activa de la FO-DTS para medir la velocidad del flujo de agua subterránea y estimar las propiedades térmicas del medio teniendo en cuenta el efecto del almacenamiento de calor en el cable. Los valores obtenidos concuerdan con estimaciones independientes. El método puede ser aplicado tanto para la caracterización del flujo de descarga al mar en acuíferos costeros, como en cualquier medio poroso saturado. Finalmente, se revisa la interpretación de los tradicionales ensayos de bombeo. De esta revisión surge proponer una alternativa para separar los descensos de los niveles medidos durante el bombeo, y filtrar el ruido. Esta metodología facilita y refuerza el uso de este tipo de ensayos en acuíferos costeros. La FO-DTS proporciona diferentes tipos de información sobre la SWI, lo que bien justifica profundizar en su estudio para poder generalizar su uso. Por otro lado, la revisión de métodos tradicionales, como los ensayos de bombeo, o de metodologías establecidas, como el uso de la temperatura como trazador, podrían beneficiarse de cierta revisión para adaptarlas a las condiciones especificas de los acuíferos costeros. En cualquier caso, el conjunto de métodos presentados en este documento expande las herramientas y resolución disponibles para la caracterización de la SWI en acuíferos costeros.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Fiber optic distributed temperature sensing"

1

Carl, Bouvier, and United States. National Aeronautics and Space Administration., eds. X-33/RLV: Reusable cryogenic tank VHM using fiber optic distributed sensing technology. [Washington, DC: National Aeronautics and Space Administration, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Carl, Bouvier, and United States. National Aeronautics and Space Administration., eds. X-33/RLV: Reusable cryogenic tank VHM using fiber optic distributed sensing technology. [Washington, DC: National Aeronautics and Space Administration, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Carl, Bouvier, and United States. National Aeronautics and Space Administration., eds. X-33/RLV: Reusable cryogenic tank VHM using fiber optic distributed sensing technology. [Washington, DC: National Aeronautics and Space Administration, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Valis, Tomas. Distributed fiber optic sensing based on counterpropagating waves. [S.l.]: [s.n.], 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

1947-, Dakin John, ed. The Distributed fibre optic sensing handbook. Kempston, Bedford, UK: IFS Publications, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Thevenaz, Luc. Distributed Optical Fiber Sensing. Wiley & Sons, Incorporated, John, 2029.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Anders, George J., and Sudhakar Cherukupalli. Distributed Fiber Optic Sensing and Dynamic Rating of Power Cables. Wiley & Sons, Incorporated, John, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Anders, George J., and Sudhakar Cherukupalli. Distributed Fiber Optic Sensing and Dynamic Rating of Power Cables. Wiley & Sons, Limited, John, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Anders, George J., and Sudhakar Cherukupalli. Distributed Fiber Optic Sensing and Dynamic Rating of Power Cables. Wiley-IEEE Press, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Anders, George J., and Sudhakar Cherukupalli. Distributed Fiber Optic Sensing and Dynamic Rating of Power Cables. Wiley & Sons, Incorporated, John, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Fiber optic distributed temperature sensing"

1

Boiarski, A. A. "Distributed Fiber Optic Temperature Sensing." In Applications of Fiber Optic Sensors in Engineering Mechanics, 210–24. New York, NY: American Society of Civil Engineers, 1993. http://dx.doi.org/10.1061/9780872628953.ch14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wanser, Keith H., Michael Haselhuhn, and Michael Lafond. "High Temperature Distributed Strain and Temperature Sensing Using OTDR." In Applications of Fiber Optic Sensors in Engineering Mechanics, 194–209. New York, NY: American Society of Civil Engineers, 1993. http://dx.doi.org/10.1061/9780872628953.ch13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kapeller, Gerhard, Thomas Etzer, and Markus Aufleger. "Measurements of Hydraulic Subsurface Processes by Means of Distributed Fiber Optic Temperature Sensing (DTS)." In Landslide Science and Practice, 487–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31445-2_64.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Henninges, Jan, and Ali Masoudi. "Fiber-Optic Sensing in Geophysics, Temperature Measurements." In Encyclopedia of Solid Earth Geophysics, 1–12. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-10475-7_281-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Henninges, Jan, and Ali Masoudi. "Fiber-Optic Sensing in Geophysics, Temperature Measurements." In Encyclopedia of Solid Earth Geophysics, 384–94. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-58631-7_281.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Reinsch, Thomas, Philippe Jousset, and Charlotte M. Krawczyk. "Fiber Optic Distributed Strain Sensing for Seismic Applications." In Encyclopedia of Solid Earth Geophysics, 1–5. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-10475-7_284-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Reinsch, Thomas, Philippe Jousset, and Charlotte M. Krawczyk. "Fiber Optic Distributed Strain Sensing for Seismic Applications." In Encyclopedia of Solid Earth Geophysics, 379–83. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-58631-7_284.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Lienhart, Werner, Christoph M. Monsberger, and Fabian Buchmayer. "How to Make a Self-sensing House with Distributed Fiber Optic Sensing." In Lecture Notes in Civil Engineering, 718–26. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07322-9_72.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ogawa, K., Y. Ozawa, H. Kawakami, T. Tsutsui, and S. Yamamoto. "A Fiber-Optic Distributed Temperature Sensor with High Distance Resolution." In Springer Proceedings in Physics, 544–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-75088-5_81.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rogers, A. J. "New Methods for Distributed Optical-Fibre Measurement of Strain and Temperature in Large Structures." In Applications of Fiber Optic Sensors in Engineering Mechanics, 225–35. New York, NY: American Society of Civil Engineers, 1993. http://dx.doi.org/10.1061/9780872628953.ch15.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Fiber optic distributed temperature sensing"

1

Orrell, P. R. "Fiber optic distributed temperature sensing." In First European Conference on Smart Structures and Materials. SPIE, 1992. http://dx.doi.org/10.1117/12.2298054.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hartog, Arthur H. "Progress in distributed fiber optic temperature sensing." In Environmental and Industrial Sensing, edited by Michael A. Marcus and Brian Culshaw. SPIE, 2002. http://dx.doi.org/10.1117/12.456092.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Abeling, Joerg, Ulrich Bartels, Kamaljeet Singh, Shaktim Dutta, Gaurav Agrawal, and Apoorva Kumar. "Well Integrity Leak Diagnostic Using Fiber-Optic Distributed Temperature Sensing and Production Logging." In SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204557-ms.

Full text
Abstract:
Abstract Fiber optics has many applications in the oil and gas industry. In recent years, fiber optics has found usefulness in leak detection. The leaks can be efficiently identified using fiber-optic distributed temperature sensing measurement, thereby mitigating the health, safety, and environmental (HSE) risk associated with well integrity. Further, a production log can be used to gain more insight and finalize a way ahead to resolve well integrity issues. An innovative solution-driven approach was defined, with fiber-optic distributed measurement playing a key role. Multiple leaks were suspected in the well completion, and a fiber-optic cable was run to identify possible areas of the leak path. After the fiber-optic data acquisition, a production log was recorded across selective depths to provide an insight on leak paths. After identifying leak depths, a definitive decision between tubular patching and production system overhaul was decided based on combined outputs of the fiber-optic acquisition and production log. Results are presented for a well where multiple leaks were successfully identified using the novel operational approach. Further, operational time was reduced from 3 days (conventional slickline memory or e-line logging performed during daylight operation) to 1 day (a combination of fiber-optic distributed temperature sensing and production log in a single run). The diagnosis of production system issues was completed in one shut-in and one flowing condition, thereby reducing the risk of HSE exposure with multiple flowing conditions (to simulate the leak while the conventional production logging tool is moved to different depths in the well). Additional insight on leak quantification was confirmed from the production log data, where one leak was noted at the tubing collar while the other leak was noted a few meters above the tubing collar. This observation was substantial in deciding whether to proceed with tubing patch or replace the entire production tubing. The novel operational approach affirms fiber-optic distributed temperature measurement's versatility in solving critical issues of operation time and reducing HSE exposure while delivering decisive information on production system issues. The paper serves as a staging area for other applications of similar nature to unlock even wider horizons for distributed temperature sensing measurement.
APA, Harvard, Vancouver, ISO, and other styles
4

Gifford, D. K. "Distributed fiber-optic temperature sensing using Rayleigh backscatter." In 31st European Conference on Optical Communications (ECOC 2005). IEE, 2005. http://dx.doi.org/10.1049/cp:20050584.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Inaudi, Daniele, and Branko Glisic. "Long-Range Pipeline Monitoring by Distributed Fiber Optic Sensing." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10287.

Full text
Abstract:
Distributed fiber optic sensing presents unique features that have no match in conventional sensing techniques. The ability to measure temperatures and strain at thousands of points along a single fiber is particularly interesting for the monitoring of elongated structures such as pipelines, flow lines, oil wells and coiled tubing. Sensing systems based on Brillouin and Raman scattering are used for example to detect pipeline leakages, verify pipeline operational parameters, prevent failure of pipelines installed in landslide areas, optimize oil production from wells and detect hot-spots in high-power cables. Recent developments in distributed fiber sensing technology allow the monitoring of 60 km of pipeline from a single instrument and of up to 300 km with the use of optical amplifiers. New application opportunities have demonstrated that the design and production of sensing cables is a critical element for the success of any distributed sensing instrumentation project. Although some telecommunication cables can be effectively used for sensing ordinary temperatures, monitoring high and low temperatures or distributed strain present unique challenges that require specific cable designs. This contribution presents advances in long-range distributed sensing and in novel sensing cable designs for distributed temperature and strain sensing. The paper also reports a number of significant field application examples of this technology, including leakage detection on brine and gas pipelines, strain monitoring on gas pipelines and combined strain and temperature monitoring on composite flow lines and composite coiled-tubing pipes.
APA, Harvard, Vancouver, ISO, and other styles
6

Karamehmedovic, Emir, and Ulrich Glombitza. "Fibre optic distributed temperature sensing using IOFDR." In Second European Workshop on Optical Fibre Sensors. SPIE, 2004. http://dx.doi.org/10.1117/12.566628.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Hveding, Frode, and Francisco Porturas. "Integrated Applications of Fiber-Optic Distributed Acoustic and Temperature Sensing." In SPE Latin American and Caribbean Petroleum Engineering Conference. Society of Petroleum Engineers, 2015. http://dx.doi.org/10.2118/177222-ms.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Marcus, Michael A., Arthur H. Hartog, Connie F. Purdum, and Adrian P. Leach. "Real-Time Distributed Fiber-Optic Temperature Sensing In The Process Environment." In OE/FIBERS '89, edited by Robert A. Lieberman and Marek T. Wlodarczyk. SPIE, 1990. http://dx.doi.org/10.1117/12.963189.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Dutta, Shaktim, Kamaljeet Singh, Gaurav Agrawal, and Apoorva Kumar. "Unlocking the Potential of Fiber-Optic Distributed Temperature Sensing in Resolving Well Integrity Issues." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/30990-ms.

Full text
Abstract:
Abstract Multiple leaks in production tubing of deep wells can be efficiently identified using fiber-optic distributed temperature measurement and thereby mitigating the health, safety and environment (HSE) risk associated with a potential well barrier failure. Further, a production log can be used to gain more insight and finalize a way ahead to resolve the issues of the well integrity. An innovative solution-driven approach was identified with fiber-optic distributed measurement playing a key role. Multiple leaks were suspected in the production system and a fiber-optic cable was run to identify possible areas of leak path. In these deep wells, after the fiber-optic data acquisition, a production log was recorded across selective depths to provide more insights on leak paths. Post identification of leak depths, a definitive decision between tubular patching and production system overhaul was decided based on combined outputs of fiber-optic, production log and tubular patch technology. Results are presented for a two-well operation. Taking an example of Well A, leaks were successfully identified at three depths using the novel operational approach. Further, operation time was reduced from three days (conventional production log measurement performed during daylight operation) to one day (combination of fiber-optic distributed temperature sensing and production log in a single run). Diagnosis of production system issues were completed in one flowing and one shut-in survey condition, thereby reducing the risk of HSE exposure with multiple flowing conditions (conventional production log measurement). Additional insight and confirmation on leaks were observed from production log data which helped identify the presence of a leak across the tubing body. This observation was substantial in deciding whether to proceed with tubing patch or replace the entire production tubing. Tubing patch technology was not satisfactorily recognized to provide well integrity across leak depths. Hence, the decision was made to replace the entire production tubing. The novel operational approach affirms the versatility of fiber-optic distributed temperature measurement in solving critical issues of operation time and reducing HSE exposure while delivering decisive information on production system issues. The paper serves as a staging area for other applications of similar nature to unlock even wider horizons for distributed temperature sensing.
APA, Harvard, Vancouver, ISO, and other styles
10

Zaidi, Farhan, Tiziano Nannipieri, Marcelo A. Soto, Alessandro Signorini, Gabriele Bolognini, and Fabrizio Di Pasquale. "Hybrid Raman/FBG-based Sensing for Simultaneous Point Dynamic Strain and Distributed Temperature Measurement." In National Fiber Optic Engineers Conference. Washington, D.C.: OSA, 2012. http://dx.doi.org/10.1364/nfoec.2012.jw2a.26.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Fiber optic distributed temperature sensing"

1

Quinn, Meghan. Geotechnical effects on fiber optic distributed acoustic sensing performance. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41325.

Full text
Abstract:
Distributed Acoustic Sensing (DAS) is a fiber optic sensing system that is used for vibration monitoring. At a minimum, DAS is composed of a fiber optic cable and an optic analyzer called an interrogator. The oil and gas industry has used DAS for over a decade to monitor infrastructure such as pipelines for leaks, and in recent years changes in DAS performance over time have been observed for DAS arrays that are buried in the ground. This dissertation investigates the effect that soil type, soil temperature, soil moisture, time in-situ, and vehicle loading have on DAS performance for fiber optic cables buried in soil. This was accomplished through a field testing program involving two newly installed DAS arrays. For the first installation, a new portion of DAS array was added to an existing DAS array installed a decade prior. The new portion of the DAS array was installed in four different soil types: native fill, sand, gravel, and an excavatable flowable fill. Soil moisture and temperature sensors were buried adjacent to the fiber optic cable to monitor seasonal environmental changes over time. Periodic impact testing was performed at set locations along the DAS array for over one year. A second, temporary DAS array was installed to test the effect of vehicle loading on DAS performance. Signal to Noise Ratio (SNR) of the DAS response was used for all the tests to evaluate the system performance. The results of the impact testing program indicated that the portions of the array in gravel performed more consistently over time. Changes in soil moisture or soil temperature did not appear to affect DAS performance. The results also indicated that time DAS performance does change somewhat over time. Performance variance increased in new portions of array in all material types through time. The SNR in portions of the DAS array in native silty sand material dropped slightly, while the SNR in portions of the array in sand fill and flowable fill material decreased significantly over time. This significant change in performance occurred while testing halted from March 2020 to August 2020 due to the Covid-19 pandemic. These significant changes in performance were observed in the new portion of test bed, while the performance of the prior installation remained consistent. It may be that, after some time in-situ, SNR in a DAS array will reach a steady state. Though it is unfortunate that testing was on pause while changes in DAS performance developed, the observed changes emphasize the potential of DAS to be used for infrastructure change-detection monitoring. In the temporary test bed, increasing vehicle loads were observed to increase DAS performance, although there was considerable variability in the measured SNR. The significant variation in DAS response is likely due to various industrial activities on-site and some disturbance to the array while on-boarding and off-boarding vehicles. The results of this experiment indicated that the presence of load on less than 10% of an array channel length may improve DAS performance. Overall, this dissertation provides guidance that can help inform the civil engineering community with respect to installation design recommendations related to DAS used for infrastructure monitoring.
APA, Harvard, Vancouver, ISO, and other styles
2

Juntao Wu. Distributed Fiber Optic Gas Sensing for Harsh Environment. Office of Scientific and Technical Information (OSTI), March 2008. http://dx.doi.org/10.2172/938805.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Becker, Matthew. Phase I Project: Fiber Optic Distributed Acoustic Sensing for Periodic Hydraulic Tests. Office of Scientific and Technical Information (OSTI), December 2017. http://dx.doi.org/10.2172/1430694.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kennedy, Jermaine L. Fiber-Optic Sensor with Simultaneous Temperature, Pressure, and Chemical Sensing Capabilities. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/949037.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Bruno, Michael S., Kang Lao, Nicky Oliver, and Matthew Becker. Use of Fiber Optic Distributed Acoustic Sensing for Measuring Hydraulic Connectivity for Geothermal Applications. Office of Scientific and Technical Information (OSTI), April 2018. http://dx.doi.org/10.2172/1434494.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Ichinose, G., and R. Mellors. Seismic Array Analysis Using Fiber-Optic Distributed Acoustic Sensing on Small Local and Regional Earthquakes. Office of Scientific and Technical Information (OSTI), August 2021. http://dx.doi.org/10.2172/1818399.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Challener, William. Multipoint Pressure and Temperature Sensing Fiber Optic Cable for Monitoring CO2 Sequestration. Office of Scientific and Technical Information (OSTI), February 2015. http://dx.doi.org/10.2172/1170208.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Romano, Nicholas, Forest Banks, Charlotte Rowe, Neill Symons, Agatha Podrasky, and David Podrasky. Distributed Acoustic Sensing (DAS) on Opportunistic Networks_ A Feasibility Study Utilizing Fiber Optic Infrastructure at NEON Sites for DAS. Office of Scientific and Technical Information (OSTI), September 2020. http://dx.doi.org/10.2172/1669083.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Tsvetkov, Pavel, Bryan Dickerson, Joseph French, Donald McEachern, and Abderrafi Ougouag. A Distributed Fiber Optic Sensor Network for Online 3-D Temperature and Neutron Fluence Mapping in a VHTR Environment. Office of Scientific and Technical Information (OSTI), April 2014. http://dx.doi.org/10.2172/1150754.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Wang, Xingwei, Chengyu Cao, and Xinsheng Lou. Distributed fiber sensing systems for 3D combustion temperature field monitoring in coal-fired boilers using optically generated acoustic waves. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1507128.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Fiber optic distributed temperature sensing' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography