Results 21 to 30 of about 465,961 (285)

Autonomous greenhouse gas measurement system for analysis of gas migration on landfill sites [PDF]

, 2010
This paper describes the design, development and validation of an autonomous gas sensing platform prototype for monitoring of the greenhouse gases, methane (CH4) and carbon dioxide (CO2).
Beirne, Stephen, Corcoran, Brian, Diamond, Dermot, Fay, Cormac, Foley, Colum, Kiernan, Breda M., Smeaton, Alan F.   +6 more
core   +2 more sources

Cavity-Enhanced Raman Spectroscopy for Food Chain Management

Sensors, 2018
Comprehensive food chain management requires the monitoring of many parameters including temperature, humidity, and multiple gases. The latter is highly challenging because no low-cost technology for the simultaneous chemical analysis of multiple gaseous
Vincenz Sandfort, Jens Goldschmidt, Jürgen Wöllenstein, Stefan Palzer   +3 more
doaj   +1 more source

Using a Second Order Sigma-Delta Control to Improve the Performance of Metal-Oxide Gas Sensors [PDF]

, 2018
Controls of surface potential have been proposed to accelerate the time response of MOX gas sensors. These controls use temperature modulations and a feedback loop based on first-order sigma-delta modulators to keep constant the surface potential ...
Domínguez Pumar, Manuel, Kowalski, Lukasz, Llobet Valero, Eduard, Navarrete, Eric, Pons Nin, Joan   +4 more
core   +3 more sources

Recent Advances in Gas Sensing Technology Using Non-Oxide II-VI Semiconductors CdS, CdSe, and CdTe

Chemosensors, 2022
In recent years, there has been an increasing need and demand for gas sensors to detect hazardous gases in the atmosphere, as they are indispensable for environmental monitoring.
Masanori Ando, Hideya Kawasaki, Satoru Tamura, Yoshikazu Haramoto, Yasushi Shigeri   +4 more
doaj   +1 more source

n-Ge on Si for Mid-Infrared Plasmonic Sensors [PDF]

, 2017
The detection and amplification of molecular absorption lines from a mustard gas simulant is demonstrated using plasmonic antennas fabricated from n-Ge epitaxially grown on Si.
Baldassarre, Leonetta, Ballabio, Andrea, Biagioni, Paolo, Brida, Daniele, Calandrini, Eugenio, Fischer, Marco P., Frigerio, Jacopo, Gallacher, Kevin, Giliberti, Valeria, Isella, Giovanni, Millar, Ross W., Ortolani, Michele, Paul, Douglas J., Pellegrini, Giovanni, Sakat, Emilie   +14 more
core   +1 more source

One-Dimensional Nanomaterials in Resistive Gas Sensor: From Material Design to Application

Chemosensors, 2021
With a series of widespread applications, resistive gas sensors are considered to be promising candidates for gas detection, benefiting from their small size, ease-of-fabrication, low power consumption and outstanding maintenance properties.
Ze Wang, Lei Zhu, Shiyi Sun, Jianan Wang, Wei Yan   +4 more
doaj   +1 more source

Eddy current based, contactless position transducer for a gas handle [PDF]

, 2010
In electric vehicles, it is normal to have an electronic set value for 'gas' and for 'brake'. Traditional potentiometers with sliding contacts are not reliable. Magnetoresistive sensors or hall effect sensors need a magnet on the moving part.
Sergeant, Peter, Van den Bossche, Alex
core   +2 more sources

Rapid characterisation of mixtures of hydrogen and natural gas by means of ultrasonic time-delay estimation [PDF]

Journal of Sensors and Sensor Systems
The implementation of the “power-to-gas” concept, where hydrogen and natural gas are blended and transported in the existing network, requires a quick, on-site method to monitor the content of hydrogen in the mixture. We evaluate a rapid characterisation
J. M. Monsalve, U. Völz, M. Jongmanns, B. Betz, S. Langa, C. Ruffert, J. Amelung, M. Wiersig   +7 more
doaj   +1 more source

Recent Progress in Gas Sensor Based on Nanomaterials

Micromachines, 2022
Nanomaterials-based gas sensors have great potential for substance detection. This paper first outlines the research of gas sensors composed of various dimensional nanomaterials.
Danyang Lun, Ke Xu
doaj   +1 more source

Development of Photonic Crystal Fiber Based Gas/ Chemical Sensors

, 2018
The development of highly-sensitive and miniaturized sensors that capable of real-time analytes detection is highly desirable. Nowadays, toxic or colorless gas detection, air pollution monitoring, harmful chemical, pressure, strain, humidity, and ...
AA Rifat, AA Rifat, AA Rifat, BK Paul, Cándido Bariáin, D Ahuja, D Bykov, E Austin, G Amouzad Mahdiraji, G Whitenett, H Ademgil, H Ebendorff-Heidepriem, H Hamzaoui El, H Xuan, IE Araci, J Knight, J Park, J-M Brosi, J-P Berenger, Jeff Hecht, K Ahmed, K Ahmed, K Cui, K Fasihi, Kawsar Ahmed, KT Wan, L Alwis, M Arjmand, M Kaltenbrunner, M Pushkarsky, Md. Rabiul Hasan, Moutusi De, MR Hasan, MS Habib, NL Andrews, P Hu, Q Liu, R Hao, R. F. Cregan, S Asaduzzaman, S Asaduzzaman, S Das, S Gong, S Liu, S Olyaee, S Xu, SA Morin, SA Razzak, SK Mishra, SK Mishra, T Takeo, T Uno, TA Birks, W Ding, W Jin, Wee Lit Ng, X Feng, Y Al-Qazwini, Y Gao, Y Hou, Y Liu, Y Lu, Y Wang, Y Zhao, Y-H Chang   +64 more
core   +1 more source