The sensing element of Figaro gas sensors is a tin dioxide (SnO2) semiconductor which has low conductivity in clean air. In the presence of a detectable gas, the sensor’s conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration.
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http://www.figarosensor.com/products/813pdf.pdf
This entry was posted on Sunday, August 10th, 2008 at 10:10 am and is filed under detector.
