Relevant bibliographies by topics / Metrological observer

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Metrological observer'

Author: Grafiati
Published: 28 May 2022
Last updated: 30 July 2025

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Journal articles on the topic "Metrological observer"

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Iacomussi, Paola. "Metrology Impact of Advanced Driver Assistance Systems." Electronic Imaging 2020, no. 16 (2020): 202–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.16.avm-200.

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Metrological applications to road environment are usually focused on the characterization of the road, considering as measurands several characteristics related to the road as a whole or the performances of single components, like the road surface, lighting systems, active and/or passive signaling and obviously vehicles equipment. In current standards approach, driving on the road means to navigate ”visually” (for a human being driver), the characterizations are mostly photometric performances oriented for given reference conditions and reference observer (photometric observer observing the ro
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Ayorinde, John O. O., Xavier Loizeau, Victoria Bardsley, et al. "Measurement Matters: A Metrological Approach to Renal Preimplantation Biopsy Evaluation to Address Uncertainty in Organ Selection." Transplantation Direct 10, no. 11 (2024): e1708. http://dx.doi.org/10.1097/txd.0000000000001708.

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Background. Preimplantation biopsy combines measurements of injury into a composite index to inform organ acceptance. The uncertainty in these measurements remains poorly characterized, raising concerns variability may contribute to inappropriate clinical decisions. Methods. We adopted a metrological approach to evaluate biopsy score reliability. Variability was assessed by performing repeat biopsies (n = 293) on discarded allografts (n = 16) using 3 methods (core, punch, and wedge). Uncertainty was quantified using a bootstrapping analysis. Observer effects were controlled by semi-blinded sco
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Markulik, Štefan, Jozef Petrík, Marek Šolc, Peter Blaško, Pavol Palfy, and Lenka Girmanová. "The Relationship between Process Capability and Quality of Measurement System." Applied Sciences 12, no. 12 (2022): 5825. http://dx.doi.org/10.3390/app12125825.

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This article deals with the design of appropriate measures that had to be taken for the implemented measurement system. The measurement result was significantly negatively affected by several factors. Forty-five samples of shafts used in the production of surgical drills were measured. Measurements were performed by metrological appraisers with a calibrated digital micrometer. Measurement and subsequent data processing revealed low process capability (CP and PP indices). A large portion of the shafts had an observed size below the lower specific limit (LSL). Therefore, it was necessary to take
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Glebov, A. B., I. V. Chizhik, N. M. Parkhomenko, and O. V. Dengub. "Features of the Functioning of the National Metrological System in the Health Sector." Metrology and instruments, no. 1 (March 2, 2020): 59–65. http://dx.doi.org/10.33955/2307-2180(1)2020.59-65.

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The legislative requirements for metrological support in the healthcare sector, the issues of ensuring metrological traceability and the hierarchical scheme of calibrations and measurements in laboratory medicine according to the recommendations of JCTLM and their adaptation at the national level are considered. The features of the provided metrological control of measuring instruments for medical purposes, including when conducting their compliance assessment with the requirements of technical regulations. The current state of affairs in the confirmation of the technical competence of medical
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Seitz, S., R. Feistel, D. G. Wright, S. Weinreben, P. Spitzer, and P. De Bièvre. "Metrological traceability of oceanographic salinity measurement results." Ocean Science 7, no. 1 (2011): 45–62. http://dx.doi.org/10.5194/os-7-45-2011.

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Abstract. Consistency of observed oceanographic salinity data is discussed with respect to contemporary metrological concepts. The claimed small uncertainty of salinity measurement results traceable to the conductivity ratio of a certified IAPSO Standard Seawater reference is not metrologically justified if results are compared on climatic time scales. This applies in particular to Practical Salinity SP, Reference Salinity SR, and the latest estimates of Absolute Salinity using the TEOS-10 formalism. On climate time scales an additional contribution to the uncertainty that is related to unknow
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Seitz, S., R. Feistel, D. G. Wright, S. Weinreben, P. Spitzer, and P. De Bièvre. "Metrological traceability of oceanographic salinity measurement results." Ocean Science Discussions 7, no. 4 (2010): 1303–46. http://dx.doi.org/10.5194/osd-7-1303-2010.

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Abstract. Consistency of observed oceanographic salinity data is discussed with respect to contemporary metrological concepts. The claimed small uncertainty of salinity measurement results traceable to the conductivity ratio of a certified IAPSO Standard Seawater reference is not metrologically justified if results are compared on climatic time scales. This applies in particular to Practical Salinity SP, Reference Salinity SR, and the latest estimates of Absolute Salinity using the TEOS-10 formalism. In climate time scales an additional contribution to the uncertainty that is related to unknow
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Tesfaye, Solomon, Yeshambel Belyhun, Takele Teklu, Girmay Medhin, and al. et. "Malaria pattern observed in the highland fringe of Butajira, Southern Ethiopia: a ten-year retrospective analysis from parasitological and metrological data." MalariaWorld Journal 3, no. 5 (2012): 1–8. https://doi.org/10.5281/zenodo.10977912.

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<strong>Background.</strong> Studying the magnitude of highland malaria is necessary to implement effective control measures in highland&nbsp;fringes of Ethiopia. Since repeated epidemics were reported in Butajira, this study hypothesized autochthonous transmission in&nbsp;the highland fringes of Butajira. Thus we aimed to determine the malaria occurrence and its association with meteorological&nbsp;variables in the highland fringe of Butajira, Southern Ethiopia from parasitological and metrological data.&nbsp;<strong>Methods.</strong> Retrospective monthly malaria case data was collected from
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S. Rajput. "MONITORING OF CODLING MOTH CYDIA POMONELLA (L.) THROUGH PHEROMONE TRAPS IN APPLE ORCHARD." Pakistan Journal of Science 75, no. 03 (2023): 551–53. http://dx.doi.org/10.57041/pjs.v75i03.1003.

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A trial was conducted using RCBD design at Barkhan (Baghao) province Balochistan. Pheromone traps (04) were placed among the apple trees for the collection of the adult codling moth. These traps were hung on four randomly selected Apple tree at height of 2.5 meters with adjacent of five trees. The result indicated that the first flight of C. pomonella population (7.20±0.40 moths per trap) was observed in 17th standard metrological week. Afterwards, the C. pomonella population increases gradually 8.50±1.10 moths per trap in the 21ststandard metrological week. The maximum C. pomonella population
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Smith, Jessica, Mira Naftaly, Simon Nellen, and Björn Globisch. "Beam Profile Characterisation of an Optoelectronic Silicon Lens-Integrated PIN-PD Emitter between 100 GHz and 1 THz." Applied Sciences 11, no. 2 (2021): 465. http://dx.doi.org/10.3390/app11020465.

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Knowledge of the beam profiles of terahertz emitters is required for the design of terahertz instruments and applications, and in particular for designing terahertz communications links. We report measurements of beam profiles of an optoelectronic silicon lens-integrated PIN-PD emitter at frequencies between 100 GHz and 1 THz and observe significant deviations from a Gaussian beam profile. The beam profiles were found to differ between the H-plane and the E-plane, and to vary strongly with the emitted frequency. Skewed profiles and irregular side-lobes were observed. Metrological aspects of be
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Jessica, Smith, Naftaly Mira, Nellen Simon, and Globisch Björn. "Beam Profile Characterisation of an Optoelectronic Silicon Lens-Integrated PIN-PD Emitter between 100 GHz and 1 THz." Applied Sciences 11, no. 2 (2021): 465. https://doi.org/10.3390/app11020465.

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Knowledge of the beam profiles of terahertz emitters is required for the design of terahertz instruments and applications, and in particular for designing terahertz communications links. We report measurements of beam profiles of an optoelectronic silicon lens-integrated PIN-PD emitter at frequencies between 100 GHz and 1 THz and observe significant deviations from a Gaussian beam profile. The beam profiles were found to differ between the H-plane and the E-plane, and to vary strongly with the emitted frequency. Skewed profiles and irregular side-lobes were observed. Metrological aspects of be
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Dissertations / Theses on the topic "Metrological observer"

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Gouni, Vassiliki. "Development, metrological validation and applications of non-invasive cardiovascular exploration techniques for clinical and experimental use in canine and feline models." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30352.

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Les animaux de compagnie présentent un intérêt majeur dans les études cardiovasculaires soit comme modèles expérimentales soit comme modèles spontanées. De plus, le développement de méthodes d'exploration non invasives en médecine vétérinaire est devenu une nécessité à cause de régulations strictes concernant le bien être de l'animal. Un facteur limitant demeure l'exactitude et la fiabilité (répétabilité/reproductibilité) des techniques d'exploration pour leur utilisation répétitive chez des animaux vigiles. La mesure de la pression artérielle systémique (PA) non invasive et l'échocardiographi
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Арбузов, Володимир Вікторович, Владимир Викторович Арбузов, Volodymyr Viktorovych Arbuzov, И. Е. Еськов та А. И. Бережной. "«Метрологический наблюдатель» в автоматизированных системах коммерческого учёта электроэнергии". Thesis, Изд-во СумГУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/4354.

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Book chapters on the topic "Metrological observer"

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Hernandez Cely, Marlon Mauricio, Carlos Mauricio Ruiz Diaz, Sofia Pagliarini, Oscar Mauricio Hernandez Rodriguez, and Elmer Alexis Gamboa Peñaloza. "DETERMINATION OF VOLUMETRIC FRACTION IN OIL-WATER TWO-PHASE FLOW THROUGH WIRE-MESH SENSOR AND ARTIFICIAL NEURAL NETWORKS." In Engenharias - Automação, Robótica, Metrologia e Energia: estudos e tendências - Volume 4. Editora Científica Digital, 2023. http://dx.doi.org/10.37885/230914276.

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A technique to measure volumetric fraction of liquids in oil-water pipe flow based on electrical permittivity obtained by a homemade wire-mesh sensor aided by an artificial neural network is presented in this work. The artificial neural networks use the superficial velocities of fluids as inputs and the volumetric fraction based on models of electrical permittivity as outputs. In order to validate the results, they were compared with data obtained with the technique of quick closing valves. Furthermore, two-phase-flow tomographic images were compared and validated with images recorded by a hig
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Oliveira, F., J. W. R. B. Lima, R. N. Silva, A. M. F. Silva, P. R. Jean Robert, and W. Assunção. "EXPERIMENTAL STUDIES IN PULSE FLAMES: OPTIMIZATION OF AN ELETRODYNAMIC TRANSDUCER." In Engenharias - Automação, Robótica, Metrologia e Energia - Volume 2: estudos e tendências. Editora Científica Digital, 2023. http://dx.doi.org/10.37885/230512907.

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The combustion, since the beginning of history of mankind, is the source of heat and work more used in an effective and reliable manner for energy conversion. The restrictions of the use of fossil fuels and growing concerns about the emission of pollutants in the atmosphere have generated a major breakthrough in researches in combustion processes improvement in recent decades. Pulsating Combustion has shown an interesting tool in the improvement of power generation, offering advantages over conventional combustion process due to a higher rate of mixing between the fuel and oxidant, increasing
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Conference papers on the topic "Metrological observer"

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Nakamizo, Daiki, and Yuichi Koitabashi. "Study on verification of observed seismic record of over 200 meters tall mid-story-isolated building." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.0823.

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&lt;p&gt;It is important to analyze the seismic records of high-rise or isolated buildings in order to incorporate new technical knowledge about their behavior during earthquakes and improve their structural design. On October 7, 2021, a seismic event with a 4th grade Japan Metrological Agency seismic intensity was recorded in Tokyo. During the earthquake, seismic observations were made on some floors of the Sumitomo Fudosan Roppongi Grand Tower, a mid-story isolation building over 200 meters tall that was built in 2016. The analysis of the seismic records involves examining both the time doma
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Luo, Chengyi, Graham P. Greve, Baochen Wu, and James K. Thompson. "Entanglement-Enhanced Matter-Wave Interferometry in a High-Finesse Cavity." In Quantum 2.0. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/quantum.2022.qw4c.2.

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We demonstrate an entanglement-enhanced matter-wave interferometer in a high-finesse cavity with 1.7 − 0.5 + 0.5 dB directly observed metrological enhancement of phase resolution. The squeezing is generated through quantum non-demolition measurement and cavity-mediated one-axis twisting dynamics.
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Pou, Jean-Michel, and Laurent Leblond. "Evaluate and quantify the drift of a measuring instrument." In 19th International Congress of Metrology (CIM2019), edited by Sandrine Gazal. EDP Sciences, 2019. http://dx.doi.org/10.1051/metrology/201912004.

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The question of drift in measuring instruments is an essential one in metrology. Calibration establishes the "metrological state" of the instrument on the date it is carried out, but what does it tell us about tomorrow, a month from now, or at the end of the calibration validity period? If, with certain instrumentation (in particular "fixed" instruments, for instance "physical" standards and limit gauges) the situation is relatively straightforward, it is not so simple with instruments that take measurements. The FD X 07-014[1] booklet, moreover, distinguishes between the two types of device,
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Aggogeri, Francesco, Emanuele Barini, and Raffaello Levi. "CMM Measurement Variability Analysis: A Comparison Between Two Metrological Laboratories Measuring Three Industrial Workpieces." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59307.

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Quality may be defined as a set of requirements a system should satisfy in order to meet customer’s needs. Control of these requirements assures satisfaction of relevant standards, and consequently the performance levels of a manufacturing/transactional stream. In this context it is fundamental to define control procedures and reliable measurement systems adequate for adopting improvement action as soon as anomalies and dysfunctions are detected. This paper deals with a study of measurement variability occurring during practical exploitation of CMMs (Coordinate Measuring Machines). These measu
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ZORZI, STEFANO, FRANCESCO ROSSI, DANIEL TONELLI, ALESSANDRO LOTTI, and DANIELE ZONTA. "METROLOGICAL VALIDATION OF NON-DESTRUCTIVE TESTING TECHNIQUES FOR ASSESSING THE CONDITION STATE OF PRE-STRESSING SYSTEMS." In Structural Health Monitoring 2023. Destech Publications, Inc., 2023. http://dx.doi.org/10.12783/shm2023/37011.

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The number of prestressed reinforced concrete bridges exceeding their expected lifespan is constantly increasing, leading to a growing interest by infrastructure managers and control authorities in monitoring and maintaining them. Accurate knowledge about the general degradation of bridges is necessary for effective planning and prioritization of maintenance intervention and structural monitoring. The prestressing system of a bridge is a particularly sensitive component; its condition state plays a central role in risk assessment and bridge maintenance. Non-destructive, semidestructive, and de
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Jimenez, Julio. "Development of a Hydrostatic Weighing System for Didactic Activities." In NCSL International Workshop & Symposium. NCSL International, 2018. http://dx.doi.org/10.51843/wsproceedings.2018.34.

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There are different scientific and educational activities in which the concepts of physics can be applied to develop measurement systems that allow knowing the values of different properties for a specific purpose. Liquids have different physical and chemical properties, in this case, the physical properties, such as density, surface tension, compressibility, viscosity are of interest for different metrological activities in the same way to know some properties of solid bodies as the density is also of a very particular interest. The aforementioned characteristics have a particularity, and tha
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Fischer Beckert, Suelí, and Renan Ednan Flôres. "Calibration and measurement capability (CMC) and customer technical qualification." In 19th International Congress of Metrology (CIM2019), edited by Sandrine Gazal. EDP Sciences, 2019. http://dx.doi.org/10.1051/metrology/201904001.

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In the context of metrological confirmation, calibration is an essential process in all quality assurance efforts. Several organizations choose to outsource this activity to accredited laboratories in accordance with the requirements set forth in ISO/IEC 17025: 2017. Companies understand that accredited laboratory has formal recognition of its technical competence to perform the services within its scope of accreditation. The document ILAC P14: 2013 sets out guidelines for the presentation of Calibration and Measurement Capability (CMC). However, when analysing the scope of accredited laborato
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Baviere, R., and F. Ayela. "First Local Pressure Drops Measurements in Microchannels With Integrated Micromachined Strain Gauges." In ASME 2004 2nd International Conference on Microchannels and Minichannels. ASMEDC, 2004. http://dx.doi.org/10.1115/icmm2004-2406.

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The knowledge of the fundamental aspects of hydrodynamics at microscales is an exciting challenge. Some authors have published conflicting results concerning the friction and the thermal exchange coefficients, the transition to a turbulent flow regime (Qu et al. 2000, Mala and Di 1999, Papautsky et al. 1999). Some explanations, based on surface effects, have been proposed, but microeffects, if they are, are probably hidden by experimental artefacts. We aim at performing local measurements of pressure drops in monophasic microstreams. Precedent works (Baviere et al. 2003) have shown that a grea
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Lenz, Thomas A., Christian Sander, André Kulzer, and Michael Bargende. "Knowledge of the Phase is Crucial for the Analysis of All Dynamic Hydraulic Systems." In 23rd Stuttgart International Symposium. SAE International, 2023. http://dx.doi.org/10.4271/2023-01-1207.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;For metrological traceability of pressure sensors, static calibration procedures are standard. If these sensors are used in dynamic systems, unexpected phenomena or deviations occur in the recorded signal characteristics. By setting up a dynamic pressure calibration facility, it is possible to investigate this dynamic behavior and learn about the interactions between sensor and investigated system. To be able to identify the disturbing influences and interactions occurring during calibration and in subsequent measurement
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