Explosive gas detector circuit diagram

Posted on Mar 28, 2007

A gas sensor (from Allegro electronics, Cornwall Bridge, CT06754 Ts GS823) in the presence of explosive gas turned on. U5 is a voltage to frequency converter, and a sensor whic

Explosive gas detector circuit diagram
Click here to download the full size of the above Circuit.

h produces a frequency proportional to conductance. The output frequency ranges from clean air to 100Hz in the polluted atmosphere of 8kHz.

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