scholarly journals Hydrogen Sulfide Gas Detection via Multivariate Optical Computing

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2006 ◽  
Author(s):  
Bin Dai ◽  
Christopher Jones ◽  
Megan Pearl ◽  
Mickey Pelletier ◽  
Mickey Myrick
Keyword(s):  
Hydrogen Sulfide ◽  
Optical Computing ◽  
Gas Detection ◽  
Multivariate Optical Computing

Design and simulation of AIN-Based FBAR Resonator for Hydrogen sulfide Gas detection.

2021 ◽  
Author(s):  
Saeed S. Ba Hashwan ◽  
M. H. Md Khir ◽  
Y Al-Douri ◽  
Abdullah S Algamili ◽  
Sami S Alabsi
Keyword(s):  
Hydrogen Sulfide ◽  
Gas Detection

scholarly journals MoSe2 nanoflakes based chemiresistive sensors for ppb-level hydrogen sulfide gas detection

2019 ◽  
Vol 297 ◽  
pp. 126687 ◽  
Author(s):  
Ravindra Kumar Jha ◽  
Jostin Vinroy D’Costa ◽  
Neha Sakhuja ◽  
Navakanta Bhat
Keyword(s):  
Hydrogen Sulfide ◽  
Gas Detection

Conducting Poly(N -propylaniline) Nanoparticles for Hydrogen Sulfide Gas Detection

2013 ◽  
Vol 327 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Vasant V. Chabukswar ◽  
Sanjay V. Bhavsar ◽  
Amit S. Horne ◽  
Kalpana Handore ◽  
Vishwas B. Gaikwad ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Gas Detection

Taxonomic Classification of Phytoplankton with Multivariate Optical Computing, Part I: Design and Theoretical Performance of Multivariate Optical Elements

2013 ◽  
Vol 67 (6) ◽  
pp. 620-629 ◽  
Author(s):  
Joseph A. Swanstrom ◽  
Laura S. Bruckman ◽  
Megan R. Pearl ◽  
Michael N. Simcock ◽  
Kathleen A. Donaldson ◽  
...  
Keyword(s):  
Optical Computing ◽  
Taxonomic Classification ◽  
Optical Elements ◽  
Multivariate Optical Computing ◽  
Theoretical Performance

A Review of Contact Sensors Used for Monitoring Malodorous Gas in Animal Facilities

2012 ◽  
Vol 629 ◽  
pp. 655-661 ◽  
Author(s):  
Shi Rui Zhang ◽  
Ji Hua Wang ◽  
Da Ming Dong ◽  
Wen Gang Zheng ◽  
Xian De Zhao
Keyword(s):  
Hydrogen Sulfide ◽  
Electrochemical Sensors ◽  
Detection Method ◽  
Livestock Production ◽  
Status Quo ◽  
Gas Detection ◽  
The Status ◽  
Pungent Odor ◽  
Animal House ◽  
Contact Sensors

Animal facilities produce large amounts of harmful gases, and many of them have a pungent odor such as ammonia, hydrogen sulfide and other malodorous gases. The malodorous gases generated by animal house not only affect the health of people and livestock but also pollute the air. The detection of the malodorous gases can effectively improve efficiency of livestock production and reduce environmental pollution. More and more gas detection method is applied to the detection of the malodorous gases generated by animal house. This paper summarizes contact sensors for monitoring of malodorous gases in animal house recently, including semiconductor sensors electrochemical sensors and electronic nose. The basic principle and the characteristics of these methods were illustrated and the applications on the detection of malodorous gases in animal house were described. Meanwhile, the researches of malodorous gases monitoring for livestock production applied contact sensors were listed. The status quo and future development of the contact sensors for malodorous gases generated by animal house were summarized.

scholarly journals Analytical Modeling of AIN-Based Film Bulk Acoustic Wave Resonator for Hydrogen sulfide Gas detection Based on PiezoMUMPs

2021 ◽  
Vol 1962 (1) ◽  
pp. 012003
Author(s):  
Saeed S Ba Hashwan ◽  
M H Md Khir ◽  
Y Al-Douri ◽  
Abdelaziz Y Ahmed ◽  
Abdullah S Algamili ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Acoustic Wave ◽  
Analytical Modeling ◽  
Gas Detection ◽  
Bulk Acoustic Wave ◽  
Bulk Acoustic Wave Resonator ◽  
Wave Resonator ◽  
Film Bulk

scholarly journals Selective gas detection using Mn3O4/WO3 composites as a sensing layer

2019 ◽  
Vol 10 ◽  
pp. 1423-1433 ◽  
Author(s):  
Yongjiao Sun ◽  
Zhichao Yu ◽  
Wenda Wang ◽  
Pengwei Li ◽  
Gang Li ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Hydrogen Sulfide ◽  
Gas Sensing ◽  
Gas Detection ◽  
Facile Hydrothermal Method ◽  
Potential Applications ◽  
Different Temperatures ◽  
Different Gases ◽  
Sensing Performance ◽  
Mn Concentrations

Pure WO3 sensors and Mn3O4/WO3 composite sensors with different Mn concentrations (1 atom %, 3 atom % and 5 atom %) were successfully prepared through a facile hydrothermal method. As gas sensing materials, their sensing performance at different temperatures was systematically investigated for gas detection. The devices displayed different sensing responses toward different gases at specific temperatures. The gas sensing performance of Mn3O4/WO3 composites (especially at 3 atom % Mn) were far improved compared to sensors based on pure WO3, where the improvement is related to the heterojunction formed between the two metal oxides. The sensor based on the Mn3O4/WO3 composite with 3 atom % Mn showed a high selective response to hydrogen sulfide (H2S), ammonia (NH3) and carbon monoxide (CO) at working temperatures of 90 °C, 150 °C and 210 °C, respectively. The demonstrated superior selectivity opens the door for potential applications in gas recognition and detection.

scholarly journals A New Multivariate Optical Computing Microelement and Miniature Sensor for Spectroscopic Chemical Sensing in Harsh Environments: Design, Fabrication, and Testing

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 701 ◽  
Author(s):  
Christopher Jones ◽  
Bin Dai ◽  
Jimmy Price ◽  
Jian Li ◽  
Megan Pearl ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Chemical Constituents ◽  
Optical Computing ◽  
Compositional Analysis ◽  
Optical Element ◽  
Harsh Environments ◽  
Gas Reservoirs ◽  
Recent Developments ◽  
Miniature Sensor ◽  
Multivariate Optical Computing

Multivariate optical computing (MOC) is a compressed sensing technique with the ability to provide accurate spectroscopic compositional analysis in a variety of different applications to multiple industries. Indeed, recent developments have demonstrated the successful deployment of MOC sensors in downhole/well-logging environments to interrogate the composition of hydrocarbon and other chemical constituents in oil and gas reservoirs. However, new challenges have necessitated sensors that operate at high temperatures and pressures (up to 230°C and 138 MPa) as well as even smaller areas that require the miniaturization of their physical footprint. To this end, this paper details the design, fabrication, and testing of a novel miniature-sized MOC sensor suited for harsh environments. A micrometer-sized optical element provides the active spectroscopic analysis. The resulting MOC sensor is no larger than two standard AAA batteries yet is capable of operating in high temperature and pressure conditions while providing accurate spectroscopic compositional analysis comparable to a laboratory Fourier transform infrared spectrometer.

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