Low-loss saw gas sensor with self-temperature-compensation characteristics for sensor network

2011 ◽  
Author(s):  
J. Hosaka ◽  
M. Hikita
Keyword(s):  
Sensor Network ◽  
Gas Sensor ◽  
Temperature Compensation ◽  
Low Loss

Investigation of Novel Surface Acoustic Wave (SAW) Gas Sensor Used in Sensor Network

PIERS Online ◽  
2008 ◽  
Vol 4 (3) ◽  
pp. 346-350
Author(s):  
Mitsutaka Hikita ◽  
Keiya Minami ◽  
Koki Takimoto ◽  
Yasushi Hiraizumi
Keyword(s):  
Acoustic Wave ◽  
Sensor Network ◽  
Gas Sensor ◽  
Surface Acoustic Wave

Experimental demonstration of a fiber-optic gas sensor network addressed by FMCW

2000 ◽  
Vol 12 (11) ◽  
pp. 1546-1548 ◽  
Author(s):  
H.L. Ho ◽  
W. Jin ◽  
H.B. Yu ◽  
K.C. Chan ◽  
C.C. Chan ◽  
...  
Keyword(s):  
Sensor Network ◽  
Gas Sensor ◽  
Fiber Optic ◽  
Experimental Demonstration

A novel method of temperature compensation for a stable combustion-type gas sensor

2001 ◽  
Vol 77 (1-2) ◽  
pp. 322-325 ◽  
Author(s):  
S Okazaki ◽  
H Nakagawa ◽  
S Asakura ◽  
H Shimizu ◽  
I Iwamoto
Keyword(s):  
Gas Sensor ◽  
Temperature Compensation ◽  
Stable Combustion ◽  
Novel Method

scholarly journals IR Absorbance as a Criterion for Temperature Compensation in Nondispersive Infrared Gas Sensor

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 775 ◽  
Author(s):  
Jin-Ho Kim ◽  
Han-Gil Park ◽  
Seung-Hwan Yi
Keyword(s):  
Gas Sensor ◽  
Measurement Errors ◽  
Temperature Compensation ◽  
Cell Structure ◽  
Infrared Light ◽  
Temperature Dependent ◽  
Co2 Gas ◽  
Co2 Concentrations ◽  
Co2 Gas Sensor ◽  
Micro Controller Unit

Nondispersive infrared (NDIR) CO2 gas sensor was developed by using White-cell structure and tried to compensate the temperature effects in order to monitor CO2 concentrations without hindering the temperature variations. However, the absorptions of infrared light depend on not only the temperatures but also CO2 concentrations. Thus, a single Beer-Lambert law couldn’t properly describe the tendency of voltage decrements within full scale input (FSI, 0 to 5000 ppm) because it was affected by both parameters. In this article, the absorbance of infrared light is defined according to the concentrations of CO2 gas. Then, a new temperature compensation algorithm has been implemented into micro-controller unit (MCU), the measurement errors were within ±3.6% as the temperature-dependent absorbance was chosen at 1450 ppm CO2 concentrations.

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