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Journal articles on the topic 'SU8 Sensor Chip'

Author: Grafiati

Published: 6 September 2023

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1

Qiao, Dan Yang, Feng Qiang Gao, Xin Ming Lin, Zeng Zheng Wang, and Zi Jian Lin. "A Study on HT32F1765 MCU-Based in Smart Home Gas Monitoring." Applied Mechanics and Materials 644-650 (September 2014): 1298–302. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.1298.

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With the rapid development of today's society, air pollution is becoming one of the hottest topics of humans’ concern. Looking at the daily life, some peoples’ awareness in the dangers of indoor air pollution and household gas safety is not enough, so it may lead to a number of respiratory diseases, or "sub-health" conditions. (Such as influenza, pharyngitis and other diseases) On the other hand, some families, because of a gas leak, has not been timely warning of fires and caused the tragedy. To solve these problems, this work is designed based on low-power microcontroller as the master chip

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Hu, Zhixiang, Licheng Zhou, Long Li, et al. "Quantum Dots-Sensitized High Electron Mobility Transistor (HEMT) for Sensitive NO2 Detection." Chemosensors 11, no. 4 (2023): 252. http://dx.doi.org/10.3390/chemosensors11040252.

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Colloidal quantum dots (CQDs) are gaining increasing attention for gas sensing applications due to their large surface area and abundant active sites. However, traditional resistor-type gas sensors using CQDs to realize molecule recognition and signal transduction at the same time are associated with the trade-off between sensitivity and conductivity. This limitation has restricted their range of practical applications. In this study, we propose and demonstrate a monolithically integrated field-effect transistor (FET) gas sensor. This novel FET-type gas sensor utilizes the capacitance coupling

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Gaudestad, Jan, and Antonio Orozco. "Magnetic Current Imaging of a TSV short in a 3D IC." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2015, DPC (2015): 001408–28. http://dx.doi.org/10.4071/2015dpc-wp14.

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In this paper we show Magnetic Field Imaging (MFI) is the best method for Electric Fault Isolation (EFI) of short failures in 2.5/3D Through Silicon Via (TSV) devices in a true non-destructive way by imaging the current path. To confirm the failing locations and to do Physical Failure Analysis (PFA), a Dual Beam-Plasma FIB (DB-PFIB) system was used for cross sectioning and volume analysis of the TSV structures and high resolution imaging of the identified defects. Magnetic Current Imaging (MCI) is a sub technique of MFI which has been used by the semiconductor industry for more than a decade t

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Comes, Maria Colomba, Arianna Mencattini, Davide Di Giuseppe, et al. "A Camera Sensors-Based System to Study Drug Effects on In Vitro Motility: The Case of PC-3 Prostate Cancer Cells." Sensors 20, no. 5 (2020): 1531. http://dx.doi.org/10.3390/s20051531.

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Cell motility is the brilliant result of cell status and its interaction with close environments. Its detection is now possible, thanks to the synergy of high-resolution camera sensors, time-lapse microscopy devices, and dedicated software tools for video and data analysis. In this scenario, we formulated a novel paradigm in which we considered the individual cells as a sort of sensitive element of a sensor, which exploits the camera as a transducer returning the movement of the cell as an output signal. In this way, cell movement allows us to retrieve information about the chemical compositio

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Küng, Alain, Benjamin A. Bircher, and Felix Meli. "Low-Cost 2D Index and Straightness Measurement System Based on a CMOS Image Sensor." Sensors 19, no. 24 (2019): 5461. http://dx.doi.org/10.3390/s19245461.

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Accurate traceable measurement systems often use laser interferometers for position measurements in one or more dimensions. Since interferometers provide only incremental information, they are often combined with index sensors to provide a stable reference starting point. Straightness measurements are important for machine axis correction and for systems having several degrees of freedom. In this paper, we investigate the accuracy of an optical two-dimensional (2D) index sensor, which can also be used in a straightness measurement system, based on a fiber-coupled, collimated laser beam pointin

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Sun, Mojie, Guoqing Song, Jingjing Liu, Hongmei Chen, and Fuqiang Nie. "In situ controllable synthesis of cotton-like polyaniline nanostructures for a H2O2 sensor using an embedded three-electrode microfluidic chip." RSC Advances 7, no. 22 (2017): 13637–42. http://dx.doi.org/10.1039/c6ra27165k.

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Li, Zhanming, Zunzhong Ye, Yingchun Fu, Yonghua Xiong, and Yanbin Li. "A portable electrochemical immunosensor for rapid detection of trace aflatoxin B1 in rice." Analytical Methods 8, no. 3 (2016): 548–53. http://dx.doi.org/10.1039/c5ay02643a.

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To explore the possibility of achieving rapid and in situ detection of aflatoxin B<sub>1</sub> (AFB<sub>1</sub>), a portable biosensing instrument consisting of an impedance detector and a 3D-printed USB-compatible sensor chip was developed.

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Y. Elsayed, Mohamed, Sherif M. Sherif, Amina S. Aljaber, and Mohamed A. Swillam. "Integrated Lab-on-a-Chip Optical Biosensor Using Ultrathin Silicon Waveguide SOI MMI Device." Sensors 20, no. 17 (2020): 4955. http://dx.doi.org/10.3390/s20174955.

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Waveguides with sub-100 nm thickness offer a promising platform for sensors. We designed and analyzed multimode interference (MMI) devices using these ultrathin platforms for use as biosensors. To verify our design methodology, we compared the measured and simulated spectra of fabricated 220-nm-thick MMI devices. Designs of the MMI biosensors based on the sub-100 nm platforms have been optimized using finite difference time domain simulations. At a length of 4 mm, the 50-nm-thick MMI sensor provides a sensitivity of roughly 420 nm/RIU and with a figure of merit (FOM) definition of sensitivity/

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Zhao, Dong, Bingyuan Zhao, Dmitri Koltsov, Shutang Chen, and Gugang Chen. "Detection of VOCs and Nitrogen Containing Gaseous Molecules By Utilizing Carbon Nanotubes (CNTs) As Sensing Materials." ECS Meeting Abstracts MA2022-02, no. 63 (2022): 2629. http://dx.doi.org/10.1149/ma2022-02632629mtgabs.

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Carbon nanomaterials are increasingly attractive as potential candidates to make new generation of sensors due to their unique nanostructures that grant their promising electrical, chemical, and physical properties. Among the group of carbon materials, carbon nanotube (CNT) is one of the most encouraging materials because of its features of high surface-to-volume ratio and unique electronic structure. These features enable CNTs the potential to become a highly sensitive sensing material. Since our project aims on detecting bio-marks from human breath, of which the concentrations are extremely

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Castro-Hurtado, I., J. Gonzalez-Chávarri, S. Morandi, et al. "Formaldehyde sensing mechanism of SnO2 nanowires grown on-chip by sputtering techniques." RSC Advances 6, no. 22 (2016): 18558–66. http://dx.doi.org/10.1039/c5ra26105h.

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Vasiliev, A. A., A. S. Lipilin, A. M. Mozalev, et al. "Gas Sensors Based on Ceramic MEMS Structures Made of Anodic Alumina and Yttria Stabilized Zirconia Films." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2012, CICMT (2012): 000528–34. http://dx.doi.org/10.4071/cicmt-2012-wp33.

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The application of thin ceramic films for the fabrication of MEMS devices enables the extension of their working temperature range up to 600°C, a decrease in heating power consumption, and a very considerable decrease in production cost of sensors and actuators based on this technology. These advantages are very important for the application of gas sensors under harsh environmental conditions, in autonomous and wireless sensor networks. The methods of the fabrication of MEMS platforms for metal oxide semiconductor and thermocatalytic gas sensors, fast thermometers, and flowmeters based on yttr

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Shao, Gaofeng, Oleksandr Ovsianytskyi, Maged F. Bekheet, and Aleksander Gurlo. "On-chip assembly of 3D graphene-based aerogels for chemiresistive gas sensing." Chemical Communications 56, no. 3 (2020): 450–53. http://dx.doi.org/10.1039/c9cc09092d.

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Ngoc Hoa, Tran Thi, Nguyen Duc Hoa, Nguyen Van Duy, et al. "An effective H2S sensor based on SnO2 nanowires decorated with NiO nanoparticles by electron beam evaporation." RSC Advances 9, no. 24 (2019): 13887–95. http://dx.doi.org/10.1039/c9ra01105f.

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GOTO, Yoshio, Kosuke URUSHIHARA, Bunsuke TAKESHITA, and Ken-Ichiro MORI. "A study of Sub-micron Fan-out Wafer Level Packaging solutions." International Symposium on Microelectronics 2018, no. 1 (2018): 000488–93. http://dx.doi.org/10.4071/2380-4505-2018.1.000488.

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Abstract In Fan-out Wafer Level Packaging (FOWLP) processes, redistribution layer (RDL) line width reduction is a key challenge to expand the FOWLP market to multi-chip interconnections, including interconnections between SoC and DRAM, split-die connection of FPGA, and interconnections between image sensors and SoC. Next generation FOWLP requires 1.0 μm RDL and future FOWLP is targeting 0.8 μm RDL. To meet these requirements, Canon has developed new projection optics with a high NA and wide-field that is best suited for sub-micron FOWLP. These projection optics are a new option for FPA-5520iV

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Ngoc Hoa, Tran Thi, Nguyen Van Duy, Chu Manh Hung, Nguyen Van Hieu, Ho Huu Hau, and Nguyen Duc Hoa. "Dip-coating decoration of Ag2O nanoparticles on SnO2 nanowires for high-performance H2S gas sensors." RSC Advances 10, no. 30 (2020): 17713–23. http://dx.doi.org/10.1039/d0ra02266g.

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16

Chen, Shih-Lun, He-Sheng Chou, Shih-Yao Ke, et al. "VLSI Design Based on Block Truncation Coding for Real-Time Color Image Compression for IoT." Sensors 23, no. 3 (2023): 1573. http://dx.doi.org/10.3390/s23031573.

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It has always been a major issue for a hospital to acquire real-time information about a patient in emergency situations. Because of this, this research presents a novel high-compression-ratio and real-time-process image compression very-large-scale integration (VLSI) design for image sensors in the Internet of Things (IoT). The design consists of a YEF transform, color sampling, block truncation coding (BTC), threshold optimization, sub-sampling, prediction, quantization, and Golomb–Rice coding. By using machine learning, different BTC parameters are trained to achieve the optimal solution gi

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Yin, Xi, Xiao Jun Wang, and Yong Que Xie. "Temperature Cycle Measurement System Based on Single Chip Computer." Key Engineering Materials 428-429 (January 2010): 487–92. http://dx.doi.org/10.4028/www.scientific.net/kem.428-429.487.

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This thesis introduces a low cost and high precision temperature cycle measurement system with adoption of PT100 as temperature sensor, with single chip computer as the core. The method of sub-three-wire connection is proposed for engineering practice, then, can eliminate the effects of lead wire resistance and simplify the external cable connection. We discuss and research circuit component selection, circuit design, improving system reliability, and a software method of piecewise linearization process is adopted, thus we ensure exact and reliable measure and the system characteristic of low

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Braach, Justus, Eric Buschmann, Dominik Dannheim, et al. "Performance of the FASTPIX Sub-Nanosecond CMOS Pixel Sensor Demonstrator." Instruments 6, no. 1 (2022): 13. http://dx.doi.org/10.3390/instruments6010013.

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Within the ATTRACT FASTPIX project, a monolithic pixel sensor demonstrator chip has been developed in a modified 180 nm CMOS imaging process, targeting sub-nanosecond timing measurements for single ionizing particles. It features a small collection electrode design on a 25 micron thick epitaxial layer and contains 32 mini matrices of 68 hexagonal pixels each, with pixel pitches ranging from 8.66 to 20 micron. Four pixels are transmitting an analog output signal and 64 are transmitting binary hit information. Various design variations are explored, aiming at accelerating the charge collection a

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Wen, Kunhua, Li Chen, Jinyun Zhou, Liang Lei, and Yihong Fang. "A Plasmonic Chip-Scale Refractive Index Sensor Design Based on Multiple Fano Resonances." Sensors 18, no. 10 (2018): 3181. http://dx.doi.org/10.3390/s18103181.

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In this paper, multiple Fano resonances preferred in the refractive index sensing area are achieved based on sub-wavelength metal-insulator-metal (MIM) waveguides. Two slot cavities, which are placed between or above the MIM waveguides, can support the bright modes or the dark modes, respectively. Owing to the mode interferences, dual Fano resonances with obvious asymmetrical spectral responses are achieved. High sensitivity and high figure of merit are investigated by using the finite-difference time-domain (FDTD) method. In view of the development of chip-scale integrated photonics, two extr

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Dobrijević, D., P. Allport, I. Asensi, et al. "Future developments of radiation tolerant sensors based on the MALTA architecture." Journal of Instrumentation 18, no. 03 (2023): C03013. http://dx.doi.org/10.1088/1748-0221/18/03/c03013.

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Abstract The planned MALTA3 DMAPS designed in the standard TowerJazz 180 nm imaging process will implement the numerous process modifications, as well as front-end changes in order to boost the charge collection efficiency after the targeted fluence of 1 × 1015 1 MeV neq/cm2. The effectiveness of these changes have been demonstrated with recent measurements of the full size MALTA2 chip. With the original MALTA concept being fully asynchronous, a small-scale MiniMALTA demonstrator chip has been developed with the intention of bridging the gap between the asynchronous pixel matrix, and the synch

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21

Jonsson, Jonas, Katarina Smedfors, Leif Nyholm, and Greger Thornell. "Towards Chip-Based Salinity Measurements for Small Submersibles and Biologgers." International Journal of Oceanography 2013 (November 27, 2013): 1–11. http://dx.doi.org/10.1155/2013/529674.

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Water’s salinity plays an important role in the environment. It can be determined by measuring conductivity, temperature, and depth (CTD). The corresponding sensor systems are commonly large and cumbersome. Here, a 7.5 × 3.5 mm chip, containing microstructured CTD sensor elements, has been developed. On this, 1.5 mm2 gold finger electrodes are used to measure the impedance, and thereby the conductivity of water, in the MHz frequency range. Operation at these frequencies resulted in higher sensitivities than those at sub-MHz frequencies. Up to 14 kΩ per parts per thousand salt concentration was

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Liu, Jun, Qiu Lin Tan, Chen Yang Xue, and Ji Jun Xiong. "Design of a Gas Sensor for Hydrazines Based on Photo-Ionization Principle." Applied Mechanics and Materials 44-47 (December 2010): 2050–54. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.2050.

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Based on the photo ionization principle, a gas sensor for the hydrazine is designed. The photo ionization gas sensor can also measure other volatile organic compounds and other gases in concentrations from sub parts per billion to 10000 parts per million (ppm). This gas sensor is the most efficient and inexpensive type of gas sensor. They are capable of giving real-time readings and monitoring continuously. The design of micro ionization chamber, signal detection circuits and installation technology is expatiated in detail. Through researching the design of cell structure, the cell with integr

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23

Widodo, Slamet, and Goib Wiranto. "LIFT OFF PROCESS ON FABRICATION OF CARBON MONOXIDE (CO) GAS SENSOR DEVICES." ALCHEMY Jurnal Penelitian Kimia 10, no. 2 (2016): 173. http://dx.doi.org/10.20961/alchemy.10.2.540.173-185.

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<p>This paper discuss the design and fabrication of microdevice to be used as platform for CO (Carbon monoxide) gas sensor based on tin dioxide (SnO<sub>2</sub>). The device has been designed on silicon substrate with an active area of 3x3 mm<sup>2</sup>, and it is consist of bonding pad, heater, electrode, and temperature sensor components. The minimum feature size used is 50 microns, as allowed by the capability of photolithographic process. The formation of microdevice structure was carried out by lift-off technique on platinum (Pt) layer, which was deposited b

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Widodo, Slamet, and Goib Wiranto. "LIFT OFF PROCESS ON FABRICATION OF CARBON MONOXIDE (CO) GAS SENSOR DEVICES." ALCHEMY Jurnal Penelitian Kimia 10, no. 2 (2016): 173. http://dx.doi.org/10.20961/alchemy.v10i2.540.

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<p>This paper discuss the design and fabrication of microdevice to be used as platform for CO (Carbon monoxide) gas sensor based on tin dioxide (SnO<sub>2</sub>). The device has been designed on silicon substrate with an active area of 3x3 mm<sup>2</sup>, and it is consist of bonding pad, heater, electrode, and temperature sensor components. The minimum feature size used is 50 microns, as allowed by the capability of photolithographic process. The formation of microdevice structure was carried out by lift-off technique on platinum (Pt) layer, which was deposited b

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Shi, Chen, Victoria Andino-Pavlovsky, Stephen A. Lee, et al. "Application of a sub–0.1-mm3 implantable mote for in vivo real-time wireless temperature sensing." Science Advances 7, no. 19 (2021): eabf6312. http://dx.doi.org/10.1126/sciadv.abf6312.

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There has been increasing interest in wireless, miniaturized implantable medical devices for in vivo and in situ physiological monitoring. Here, we present such an implant that uses a conventional ultrasound imager for wireless powering and data communication and acts as a probe for real-time temperature sensing, including the monitoring of body temperature and temperature changes resulting from therapeutic application of ultrasound. The sub–0.1-mm3, sub–1-nW device, referred to as a mote, achieves aggressive miniaturization through the monolithic integration of a custom low-power temperature

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Groeb, Marvin, Lorenz Hagelüken, Johann Groeb, and Wolfgang Ensinger. "Experimental Analysis of Ductile Cutting Regime in Face Milling of Sintered Silicon Carbide." Materials 15, no. 7 (2022): 2409. http://dx.doi.org/10.3390/ma15072409.

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In this study, sintered silicon carbide is machined on a high-precision milling machine with a high-speed spindle, closed-loop linear drives and friction-free micro gap hydrostatics. A series of experiments was undertaken varying the relevant process parameters such as feedrate, cutting speed and chip thickness. For this, the milled surfaces are characterized in a process via an acoustic emission sensor. The milled surfaces were analyzed via confocal laser scanning microscopy and the ISO 25178 areal surface quality parameters such as Sa, Sq and Smr are determined. Moreover, scanning electron m

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Liu, Shi Wei, and Shi Bin Liu. "Design and Realization of a Digital Multichannel Fluxgate Signal Processing System." Applied Mechanics and Materials 182-183 (June 2012): 491–95. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.491.

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Addressing drawbacks of analog components and questions of multi-channel fluxgate signal operation, a FPGA (Field Programmable Gate Array) based signal processing system is designed. Three copies of sub modules compose the whole system, each of which exclusively processes one of three outputs of the fluxgate sensor. A “Phase-Sensitive-Rectification & Low-Pass-Filtering” circuit structure is employed in the processing module, through which the fluxgate signal harmonics are extracted and converted into direct quantities according to detected magnetic intensities. Firstly designed in HDL (Har

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Pillai, Sangeeth, Jan C. Kwan, Fares Yaziji, Hanwen Yu, and Simon D. Tran. "Mapping the Potential of Microfluidics in Early Diagnosis and Personalized Treatment of Head and Neck Cancers." Cancers 15, no. 15 (2023): 3894. http://dx.doi.org/10.3390/cancers15153894.

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Head and neck cancers (HNCs) account for ~4% of all cancers in North America and encompass cancers affecting the oral cavity, pharynx, larynx, sinuses, nasal cavity, and salivary glands. The anatomical complexity of the head and neck region, characterized by highly perfused and innervated structures, presents challenges in the early diagnosis and treatment of these cancers. The utilization of sub-microliter volumes and the unique phenomenon associated with microscale fluid dynamics have facilitated the development of microfluidic platforms for studying complex biological systems. The advent of

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Fan, Suyan, Man-Kay Law, Mingzhong Li, et al. "Wide Input Range Supply Voltage Tolerant Capacitive Sensor Readout Using On-Chip Solar Cell." Journal of Circuits, Systems and Computers 25, no. 01 (2015): 1640006. http://dx.doi.org/10.1142/s0218126616400065.

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In this paper, a wide input range supply voltage tolerant capacitive sensor readout circuit using on-chip solar cell is presented. Based on capacitance controlled oscillators (CCOs) for ultra-low voltage/power consumption, the sensor readout circuit is directly powered by the on-chip solar cell to improve the overall system energy efficiency. An extended sensing range with high sensing accuracy is achieved using a two-step successive approximation register (SAR) and delta-sigma ([Formula: see text]) analog-to-digital (A/D) conversion (ADC) scheme. Digital controls are generated on-chip using a

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Butt, Muhammad Ali, and Nikolai Lvovich Kazansky. "SOI Suspended membrane waveguide at 3.39 µm for gas sensing application." Photonics Letters of Poland 12, no. 2 (2020): 67. http://dx.doi.org/10.4302/plp.v12i2.1034.

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In this letter, we present a numerical study on the designing of silicon-on-insulator (SOI) suspended membrane waveguide (SMW). The waveguide geometry is optimized at 3.39 µm TE-polarized light which is the absorption line of methane gas by utilizing a 3D finite element method (FEM). The transmission loss (TL) and evanescent field ratio (EFR) of the waveguide are calculated for different geometric parameters such as the width of core, the height of core and period of the cladding. We found out that TL is directly related to EFR. Therefore, a waveguide geometry can be designed which can offer h

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Göb, Stephan, Theresa Ida Götz, and Thomas Wittenberg. "Multispectral single chip reconstruction using DNNs with application to open neurosurgery." Current Directions in Biomedical Engineering 7, no. 2 (2021): 37–40. http://dx.doi.org/10.1515/cdbme-2021-2010.

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Abstract Multispectral imaging devices incorporating up to 256 different spectral channels have recently become available for various healthcare applications, as e.g. laparoscopy, gastroscopy, dermatology or perfusion imaging for wound analysis. Currently, the use of such devices is limited due to very high investment costs and slow capture times. To compensate these shortcomings, single sensors with spectral masking on the pixel level have been proposed. Hence, adequate spectral reconstruction methods are needed. Within this work, two deep convolutional neural networks (DCNN) architectures fo

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Jones, A. T., C. P. Scheller, J. R. Prance, Y. B. Kalyoncu, D. M. Zumbühl, and R. P. Haley. "Progress in Cooling Nanoelectronic Devices to Ultra-Low Temperatures." Journal of Low Temperature Physics 201, no. 5-6 (2020): 772–802. http://dx.doi.org/10.1007/s10909-020-02472-9.

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AbstractHere we review recent progress in cooling micro-/nanoelectronic devices significantly below 10 mK. A number of groups worldwide are working to produce sub-millikelvin on-chip electron temperatures, motivated by the possibility of observing new physical effects and improving the performance of quantum technologies, sensors and metrological standards. The challenge is a longstanding one, with the lowest reported on-chip electron temperature having remained around 4 mK for more than 15 years. This is despite the fact that microkelvin temperatures have been accessible in bulk materials sin

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Chierchie, F., C. R. Chavez, M. Sofo Haro, et al. "First results from a multiplexed and massive instrument with sub-electron noise Skipper-CCDs." Journal of Instrumentation 18, no. 01 (2023): P01040. http://dx.doi.org/10.1088/1748-0221/18/01/p01040.

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Abstract We present a new instrument composed of a large number of sub-electron noise Skipper-CCDs operated with a two stage analog multiplexed readout scheme suitable for scaling to thousands of channels. New, thick, 1.35 Mpix sensors, from a new foundry, are glued into a Multi-Chip Module (MCM) printed circuit board on a ceramic substrate which has 16 sensors each. The instrument, that can hold up-to 16 MCMs, a total of 256 Skipper-CCD sensors (called a Super-Module with ≈ 130 grams of active mass and 346 Mpix), is part of the R&D effort of the OSCURA experiment which will have ≈ 94 supe

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Kang, Hosung, Hojong Choi, and Jungsuk Kim. "Ambient Light Rejection Integrated Circuit for Autonomous Adaptation on a Sub-Retinal Prosthetic System." Sensors 21, no. 16 (2021): 5638. http://dx.doi.org/10.3390/s21165638.

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This paper introduces an ambient light rejection (ALR) circuit for the autonomous adaptation of a subretinal implant system. The sub-retinal implants, located beneath a bipolar cell layer, are known to have a significant advantage in spatial resolution by integrating more than a thousand pixels, compared to epi-retinal implants. However, challenges remain regarding current dispersion in high-density retinal implants, and ambient light induces pixel saturation. Thus, the technical issues of ambient light associated with a conventional image processing technique, which lead to high power consump

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Oštir, K., K. Čotar, A. Marsetič, et al. "Automatic Near-Real-Time Image Processing Chain for Very High Resolution Optical Satellite Data." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-7/W3 (April 29, 2015): 669–76. http://dx.doi.org/10.5194/isprsarchives-xl-7-w3-669-2015.

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In response to the increasing need for automatic and fast satellite image processing SPACE-SI has developed and implemented a fully automatic image processing chain STORM that performs all processing steps from sensor-corrected optical images (level 1) to web-delivered map-ready images and products without operator's intervention. <br><br> Initial development was tailored to high resolution RapidEye images, and all crucial and most challenging parts of the planned full processing chain were developed: module for automatic image orthorectification based on a physical sensor model an

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Zhang, Xiaosheng, Kyungmok Kwon, Johannes Henriksson, Jianheng Luo, and Ming C. Wu. "A large-scale microelectromechanical-systems-based silicon photonics LiDAR." Nature 603, no. 7900 (2022): 253–58. http://dx.doi.org/10.1038/s41586-022-04415-8.

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AbstractThree-dimensional (3D) imaging sensors allow machines to perceive, map and interact with the surrounding world1. The size of light detection and ranging (LiDAR) devices is often limited by mechanical scanners. Focal plane array-based 3D sensors are promising candidates for solid-state LiDARs because they allow electronic scanning without mechanical moving parts. However, their resolutions have been limited to 512 pixels or smaller2. In this paper, we report on a 16,384-pixel LiDAR with a wide field of view (FoV, 70° × 70°), a fine addressing resolution (0.6° × 0.6°), a narrow beam dive

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Yadav, Gunjan, Subrat Sahu, Ritesh Kumar, and Rajan Jha. "Bound States in the Continuum Empower Subwavelength Gratings for Refractometers in Visible." Photonics 9, no. 5 (2022): 292. http://dx.doi.org/10.3390/photonics9050292.

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This paper describes a compact refractometer in visible with optical bounds states in the continuum (BICs) using silicon nitride (Si3N4) based sub-wavelength medium contrast gratings (MCGs). The proposed device is highly sensitive to different polarization states of light and allows a wide dynamic range from 1.330 (aqueous environment) to 1.420 (biomolecules) monitoring, apart from its being thermally stable. The proposed sensor has a sensitivity of 363 nm/RIU for X polarized light and 137 nm/RIU for Y polarized light. The spectral characteristics have been obtained with a high angular resolut

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Yadav, Gunjan, Subrat Sahu, Ritesh Kumar, and Rajan Jha. "Bound States in the Continuum Empower Subwavelength Gratings for Refractometers in Visible." Photonics 9, no. 5 (2022): 292. http://dx.doi.org/10.3390/photonics9050292.

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This paper describes a compact refractometer in visible with optical bounds states in the continuum (BICs) using silicon nitride (Si3N4) based sub-wavelength medium contrast gratings (MCGs). The proposed device is highly sensitive to different polarization states of light and allows a wide dynamic range from 1.330 (aqueous environment) to 1.420 (biomolecules) monitoring, apart from its being thermally stable. The proposed sensor has a sensitivity of 363 nm/RIU for X polarized light and 137 nm/RIU for Y polarized light. The spectral characteristics have been obtained with a high angular resolut

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Shi, Leilei, and Leyla Esfandiari. "An Electrokinetically-Driven Microchip for Rapid Entrapment and Detection of Nanovesicles." Micromachines 12, no. 1 (2020): 11. http://dx.doi.org/10.3390/mi12010011.

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Electrical Impedance Spectroscopy (EIS) has been widely used as a label-free and rapid characterization method for the analysis of cells in clinical research. However, the related work on exosomes (40–150 nm) and the particles of similar size has not yet been reported. In this study, we developed a new Lab-on-a-Chip (LOC) device to rapidly entrap a cluster of sub-micron particles, including polystyrene beads, liposomes, and small extracellular vesicles (exosomes), utilizing an insulator-based dielectrophoresis (iDEP) scheme followed by measuring their impedance utilizing an integrated electric

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Li, Jian Wen, Hong Guo Dong, Yue Wang, Si Zhang, and Zheng Fei Xu. "Research on the Dynamic Model and ECU HIL Simulation System of Electronic-Controlled Engine." Advanced Materials Research 889-890 (February 2014): 962–69. http://dx.doi.org/10.4028/www.scientific.net/amr.889-890.962.

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An ECU hardware-in-loop simulation system for electronic-controlled engine in better real-time and augmentability is built. We establish a dynamic average model of the electronic-controlled engine and put emphasis on analysing its fuel and oil slick modelmass flow model of intake manifold air and the sub-model of inlet manifold pressure. The engine model has fewer parameters and lower orders in order to adjust and set parameters; We propose a building program based on virtual instrument technology and adopts the chip TMS320F2812-DSP to design a signal interface system used to achieve the simul

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Neves, Geraldo Aparecido Rodrigues, José De Souza Nogueira, Marcelo Sacardi Biudes, Paulo Henrique Zanella de Arruda, João Basso Marques, and Rafael Da Silva Palácios. "Desenvolvimento e Calibração de um Termohigrômetro para uso em Pesquisas de Micrometeorologia, Agrometeorologia e Clima (Development and calibration of a Thermohygrometer for use in Research Micrometeorology, Agrometeorology and Climatological)." Revista Brasileira de Geografia Física 8, no. 1 (2015): 136. http://dx.doi.org/10.26848/rbgf.v8.1.p136-143.

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A utilização de sensores para medidas de temperatura e umidade relativa do ar (UR) são fundamentais para o desenvolvimento da micrometeorologia, na agrometeorologia para o manejo de irrigação, clima urbano, pesquisas ambientais de microclima e climatologia. Apesar de simples, o alto custo desses sensores dificulta sua aquisição para que haja a disponibilidade de séries temporais, dessas variáveis, nas cidades, campo e florestas brasileiras. Nesse contexto, desenvolvemos um termohigrômetro, utilizando o chip sensor SHT75, para medir a Temperatura e Umidade Relativa do Ar em ambientes externos,

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Lee, Ah-Hyoung, Jihun Lee, Farah Laiwalla, et al. "A Scalable and Low Stress Post-CMOS Processing Technique for Implantable Microsensors." Micromachines 11, no. 10 (2020): 925. http://dx.doi.org/10.3390/mi11100925.

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Implantable active electronic microchips are being developed as multinode in-body sensors and actuators. There is a need to develop high throughput microfabrication techniques applicable to complementary metal–oxide–semiconductor (CMOS)-based silicon electronics in order to process bare dies from a foundry to physiologically compatible implant ensembles. Post-processing of a miniature CMOS chip by usual methods is challenging as the typically sub-mm size small dies are hard to handle and not readily compatible with the standard microfabrication, e.g., photolithography. Here, we present a soft

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Pérez-Bailón, Jorge, Belén Calvo, and Nicolás Medrano. "1.0 V-0.18 µm CMOS Tunable Low Pass Filters with 73 dB DR for On-Chip Sensing Acquisition Systems." Electronics 10, no. 5 (2021): 563. http://dx.doi.org/10.3390/electronics10050563.

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This paper presents a new approach based on the use of a Current Steering (CS) technique for the design of fully integrated Gm–C Low Pass Filters (LPF) with sub-Hz to kHz tunable cut-off frequencies and an enhanced power-area-dynamic range trade-off. The proposed approach has been experimentally validated by two different first-order single-ended LPFs designed in a 0.18 µm CMOS technology powered by a 1.0 V single supply: a folded-OTA based LPF and a mirrored-OTA based LPF. The first one exhibits a constant power consumption of 180 nW at 100 nA bias current with an active area of 0.00135 mm2 a

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Wade, A. J., E. J. Palmer-Felgate, S. J. Halliday, et al. "From existing in situ, high-resolution measurement technologies to lab-on-a-chip – the future of water quality monitoring?" Hydrology and Earth System Sciences Discussions 9, no. 5 (2012): 6457–506. http://dx.doi.org/10.5194/hessd-9-6457-2012.

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Abstract. This paper introduces new insights into the hydrochemical functioning of lowland river-systems using field-based spectrophotometric and electrode technologies. The streamwater concentrations of nitrogen species and phosphorus fractions were measured at hourly intervals on a continuous basis at two contrasting sites on tributaries of the River Thames, one draining a rural catchment, the River Enborne, and one draining a more urban system, The Cut. The measurements complement those from an existing network of multi-parameter water quality sondes maintained across the Thames catchment a

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Barbara, Bruce J. "The Package Becomes the System." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2017, DPC (2017): 1–36. http://dx.doi.org/10.4071/2017dpc-wp1_presentation1.

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The benefits of system miniaturization lower-cost, higher electrical performance and better thermal mechanical reliability, than the current approach of discrete component packaging have been discussed at length. Several technologies have been used to address these benefits. SOC, SiP, Fan-In and Fan Out and wafer level packages. Recently there has been much discussion about Fan Out Wafer Level packaging (FOWLP) to integrate the entire system in package. However, actual implementations fall short of a complete system in a package in that only few of the chips and some passives are currently int

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Eling, C., M. Wieland, C. Hess, L. Klingbeil, and H. Kuhlmann. "DEVELOPMENT AND EVALUATION OF A UAV BASED MAPPING SYSTEM FOR REMOTE SENSING AND SURVEYING APPLICATIONS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-1/W4 (August 26, 2015): 233–39. http://dx.doi.org/10.5194/isprsarchives-xl-1-w4-233-2015.

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In recent years, unmanned aerial vehicles (UAVs) have increasingly been used in various application areas, such as in the remote sensing or surveying. For these applications the UAV has to be equipped with a mapping sensor, which is mostly a camera. Furthermore, a georeferencing of the UAV platform and/or the acquired mapping data is required. The most efficient way to realize this georeferencing is the direct georeferencing, which is based on an onboard multi-sensor system. In recent decades, direct georeferencing systems have been researched and used extensively in airborne, ship and land ve

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Xiao, Chao, Jihua Chen, and Lei Wang. "Optimal Mapping of Spiking Neural Network to Neuromorphic Hardware for Edge-AI." Sensors 22, no. 19 (2022): 7248. http://dx.doi.org/10.3390/s22197248.

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Neuromorphic hardware, the new generation of non-von Neumann computing system, implements spiking neurons and synapses to spiking neural network (SNN)-based applications. The energy-efficient property makes the neuromorphic hardware suitable for power-constrained environments where sensors and edge nodes of the internet of things (IoT) work. The mapping of SNNs onto neuromorphic hardware is challenging because a non-optimized mapping may result in a high network-on-chip (NoC) latency and energy consumption. In this paper, we propose NeuMap, a simple and fast toolchain, to map SNNs onto the mul

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Tao, Andrea R. "Nanocrystal assembly for bottom-up plasmonic materials and surface-enhanced Raman spectroscopy (SERS) sensing." Pure and Applied Chemistry 81, no. 1 (2009): 61–71. http://dx.doi.org/10.1351/pac-con-08-08-38.

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Plasmonic materials are emerging as key platforms for applications that rely on the manipulation of light at small length scales. Sub-wavelength metallic features support surface plasmons that can induce huge local electromagnetic fields at the metal surface, facilitating a host of extraordinary optical phenomena. Ag nanocrystals (NCs) and nanowires (NWs) are ideal building blocks for the bottom-up fabrication of plasmonic materials for photonics, spectroscopy, and chemical sensing. Faceted Ag nanostructures are synthesized using a colloidal approach to regulate nucleation and crystallographic

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Tseng, Yen-Ta, Wan-Yun Li, Ya-Wen Yu, et al. "Fiber Optic Particle Plasmon Resonance Biosensor for Label-Free Detection of Nucleic Acids and Its Application to HLA-B27 mRNA Detection in Patients with Ankylosing Spondylitis." Sensors 20, no. 11 (2020): 3137. http://dx.doi.org/10.3390/s20113137.

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We developed a label-free, real-time, and highly sensitive nucleic acid biosensor based on fiber optic particle plasmon resonance (FOPPR). The biosensor employs a single-strand deoxyoligonucleotides (ssDNA) probe, conjugated to immobilized gold nanoparticles on the core surface of an optical fiber. We explore the steric effects on hybridization affinity and limit of detection (LOD), by using different ssDNA probe designs and surface chemistries, including diluent molecules of different lengths in mixed self-assembled monolayers, ssDNA probes of different oligonucleotide lengths, ssDNA probes i

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Gong, Huimin, Changhui Zhao, Gaoqiang Niu, Wei Zhang та Fei Wang. "Construction of 1D/2D α-Fe2O3/SnO2 Hybrid Nanoarrays for Sub-ppm Acetone Detection". Research 2020 (13 лютого 2020): 1–11. http://dx.doi.org/10.34133/2020/2196063.

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Exhaled acetone is one of the representative biomarkers for the noninvasive diagnosis of type-1 diabetes. In this work, we have applied a facile two-step chemical bath deposition method for acetone sensors based on α-Fe2O3/SnO2 hybrid nanoarrays (HNAs), where one-dimensional (1D) FeOOH nanorods are in situ grown on the prefabricated 2D SnO2 nanosheets for on-chip construction of 1D/2D HNAs. After annealing in air, ultrafine α-Fe2O3 nanorods are homogenously distributed on the surface of SnO2 nanosheet arrays (NSAs). Gas sensing results show that the α-Fe2O3/SnO2 HNAs exhibit a greatly enhanced

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