Results 11 to 20 of about 543,955 (307)

Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations [PDF]

, 2012
This paper describes the development of a sensor designed to detect low concentrations of hydrogen fluoride (HF) in gas mixtures. The sensor employs a plastic optical fiber (POF) covered with a thin layer of glass- like material. HF attacks the glass and
Benussi, L., Bianco, S., Colafranceschi, S., Corbellini, Simone, Grassini, Sabrina, Parvis, Marco, Piccolo, D.   +6 more
core   +1 more source

Modular Analytical Multicomponent Analysis in Gas Sensor Aarrays

Sensors, 2006
A multi-sensor system is a chemical sensor system which quantitatively andqualitatively records gases with a combination of cross-sensitive gas sensor arrays andpattern recognition software.
Theodor Doll, Gerhard Müller, Simon Ahlers, Olaf Kiesewetter, Rüdiger Traute, Ali Chaiyboun   +5 more
doaj   +1 more source

Real-time diagnostics of gas/water assisted injection moulding using integrated ultrasonic sensors [PDF]

, 2007
YesAn ultrasound sensor system has been applied to the mould of both the water and gas assisted injection moulding processes. The mould has a cavity wall mounted pressure sensor and instrumentation to monitor the injection moulding machine.
Brown E. C., C. C. Cheng, C. K. Jen, E. C. Brown, Eckardt H., Kobayashi M., L. Mulvaney-Johnson, P. D. Coates, Pearson T., Piché L., Selfridge A. R., Thomas C. L., Thomas C. L., Thomas C. L., Wen S.-S. L., Y. Ono, Yang S. Y., Zhao J.   +17 more
core   +1 more source

A Gas Chromatographic System for the Detection of Ethylene Gas Using Ambient Air as a Carrier Gas

Sensors, 2017
Ethylene gas is a naturally occurring gas that has an influence on the shelf life of fruit during their transportation in cargo ships. An unintentional exposure of ethylene gas during transportation results in a loss of fruit.
Nayyer Abbas Zaidi, Muhammad Waseem Tahir, Michael J. Vellekoop, Walter Lang   +3 more
doaj   +1 more source

Zero-Padding and Spatial Augmentation-Based Gas Sensor Node Optimization Approach in Resource-Constrained 6G-IoT Paradigm

Sensors, 2022
Ultra-low-power is a key performance indicator in 6G-IoT ecosystems. Sensor nodes in this eco-system are also capable of running light-weight artificial intelligence (AI) models.
Shiv Nath Chaudhri, Navin Singh Rajput, Saeed Hamood Alsamhi, Alexey V. Shvetsov, Faris A. Almalki   +4 more
doaj   +1 more source

Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry [PDF]

, 2019
The coal industry plays an important role in the economic development of China. With the increase of coal mining year by year, coal mine accidents caused by gas explosion also occur frequently, which poses a serious threat to the life safety of ...
Chang, J., Gong, W., Grattan, K. T. V., Li, Y., Liu, T., Wang, Z., Wei, Y., Zhang, T.   +7 more
core   +1 more source

Highly sensitive two-dimensional MoS2 gas sensor decorated with Pt nanoparticles [PDF]

Royal Society Open Science, 2018
A two-dimensional molybdenum disulfide (MoS2)-based gas sensor was decorated with Pt nanoparticles (NPs) for high sensitivity and low limit of detection (LOD) for specific gases (NH3 and H2S).
Jaeseo Park, Jihun Mun, Jae-Soo Shin, Sang-Woo Kang   +3 more
doaj   +1 more source

A Reduced GO-Graphene Hybrid Gas Sensor for Ultra-Low Concentration Ammonia Detection

Sensors, 2018
A hybrid structure gas sensor of reduced graphene oxide (RGO) decorated graphene (RGO-Gr) is designed for ultra-low concentration ammonia detection. The resistance value of the RGO-Gr hybrid is the indicator of the ammonia concentration and controlled by
Chang Wang, Shaochong Lei, Xin Li, Shixi Guo, Ping Cui, Xianqi Wei, Weihua Liu, Hongzhong Liu   +7 more
doaj   +1 more source

Methane and hydrogen sensing properties of catalytic combustion type single-chip micro gas sensors with two different Pt film thicknesses for heaters

Micro and Nano Systems Letters, 2018
A catalytic combustible type single-chip micro gas sensor was fabricated by MEMS technology and responses with input powers and methane and hydrogen gas concentrations were characterized.
Woongjin Jang, Joon-Shik Park, Ki-Won Lee, Yonghan Roh   +3 more
doaj   +1 more source

Optical chemical sensor for solving gas analysis tasks

MATEC Web of Conferences, 2018
A brief review of the principles of constructing optical gas-analyzing sensors is presented. It is noted that the influence of humidity of the surrounding gas environment during gas analytical procedures using solid-state gas analytical sensors is a ...
Maslennikov Aleksandr, Zubkov Ilya, Kovalenko S.   +2 more
doaj   +1 more source