COMPARATIVE INVESTIGATIONS OF TWO KIND OF ELECTRONIC CIRCUIT FOR MULTICHANNEL SAW-BASED GAS SENSORS

Henryk Urzedniczok
Abstract:
Gas sensors based on surface acoustic wave transducer equipped with two types of primary electronic circuit, oscillatory circuit and a circuit of phase shift detection, are described. Modal character of oscillatory circuit is analyzed, and consequence of this fact are discussed. Results of investigations for this type of circuit are presented. A conception of SAW transducer with phase shift detection is proposed, a simple electronic circuit for this method is described and results of investigations are presented.
Keywords:
gas sensor, conditioning circuit, surface acoustic wave
Download:
IMEKO-WC-2009-TC19-581.pdf
DOI:
-
Event details
Event name:
XIX IMEKO World Congress
Title:

Fundamental and Applied Metrology

Place:
Lisbon, PORTUGAL
Time:
06 September 2009 - 11 September 2009