Results 11 to 20 of about 123,807 (307)

Electrodes for Semiconductor Gas Sensors [PDF]

Sensors, 2017
The electrodes of semiconductor gas sensors are important in characterizing sensors based on their sensitivity, selectivity, reversibility, response time, and long-term stability. The types and materials of electrodes used for semiconductor gas sensors are analyzed.
Sung Lee
openaire   +3 more sources

Gas sensors.

Hyomen Kagaku, 1989
Gas Sensors
openaire   +3 more sources

Intelligent Gas Sensors: From Mechanism to Applications. [PDF]

Sensors (Basel)
Intelligent gas sensors are indispensable devices widely used in modern society for environmental monitoring, healthcare, the food industry, and public safety.
Wei J, Peng Q, Xie Y, Chen Y.
europepmc   +2 more sources

Novel approach for efficient resonance tracking in photoacoustic gas sensor systems based on a light-induced wall signal

Photoacoustics, 2023
Photoacoustic gas sensing is a method suited for the detection of radiation absorbing molecular species in the gas phase. Due to the backgroand-free detection, it has considerable benefits in the measurement of very low concentrations down to the parts ...
C. Weber, J. Kapp, J. Wöllenstein, K. Schmitt   +3 more
doaj   +1 more source

Gas sensors for climate research [PDF]

Journal of Sensors and Sensor Systems, 2018
The availability of datasets providing information on the spatial and temporal evolution of greenhouse gas concentrations is of high relevance for the development of reliable climate simulations.
L. Scholz, A. Ortiz Perez, B. Bierer, J. Wöllenstein, J. Wöllenstein, S. Palzer   +5 more
doaj   +1 more source

A test system for gas sensors

, 2022
S.163-172An important instrument for development of gas sensors is the test and measurement system. Whereas for calibration of commercial gas sensors prefabricated gas mixtures were often used, for research purposes a more flexible system is needed.
Göttler, W., Endres, H.-E., Jander, H.D.   +2 more
core   +1 more source

Photoacoustic methane detection inside a MEMS microphone

Photoacoustics, 2023
An innovative laser based photoacoustic (PA) gas sensing concept with intrinsic miniaturization potential was developed and investigated for methane trace gas detection.
Thomas Strahl, Jonas Steinebrunner, Christian Weber, Jürgen Wöllenstein, Katrin Schmitt   +4 more
doaj   +1 more source

A Review of Resistive Gas Sensors Based on Semiconducting Metal Oxides [PDF]

Journal of Advanced Materials in Engineering, 2022
Nowadays, the industrialization of societies and the improvement of the quality of life are associated with issues such as air pollution and environmental pollution.
A. Mirzaei, H. Shokrollahi
doaj   +1 more source

Low-Power Odor-Sensing Network Based on Wake-Up Nodes

Proceedings, 2017
The localization of bad odors is a long standing issue with high relevance for affected people because of the health and safety implications. In order to enable the detection and localization of bad odors we propose a wireless, low-power consuming sensor
Alvaro Ortiz Perez, Benedikt Bierer, Cem Dinc, Jürgen Wöllenstein, Stefan Palzer   +4 more
doaj   +1 more source

Time-dependent investigation of a mechanochemical synthesis of bismuth telluride-based materials and their structural and thermoelectric properties

Royal Society Open Science, 2022
Here, we report on the time dependence of a synthesis procedure for generation of both n- and p-type bismuth telluride-based materials. To initiate the reaction, the starting materials were first mechanical pre-reacted.
Dennis Groeneveld, Jan D. Koenig, Michael Poschmann, Hendrik Groß, Wolfgang Bensch, Lorenz Kienle, Jürgen Wöllenstein   +6 more
doaj   +1 more source