Gas sensor consisting of surface wave components

Details Gas sensor consisting of surface wave components Gas sensor consisting of surface wave components

1996-11-15

1998-10-06

Williams, Hezron E.

Measuring and testing

Gas analysis

By vibration

73 232, 73 3105, 310313R, G01N 2902, G01N 2918, G01H 1300

Patent

active

058179224

ABSTRACT:
In a gas sensor comprising a housing and having driver and amplifier circuits the housing has a bottom part with at least four cavities arranged in radial symmetry around a central gas admission space from which gas admission passages of the same shape and size extend radially outwardly to the various cavities for supplying gas to be measured to surface wave components of which one is disposed in each of the cavities and the cavities have discharge passages extending outwardly and having all the same gas flow resistance for the discharge of the gases from the housing cavities.

REFERENCES:
patent: 4596697 (1986-06-01), Ballato
patent: 4895017 (1990-01-01), Pyke et al.
patent: 5106756 (1992-04-01), Zaromb
patent: 5243539 (1993-09-01), Holt et al.
patent: 5325704 (1994-07-01), Mariani et al.
patent: 5465608 (1995-11-01), Lokshin et al.
Japanese Patent Abstract JP6-109710, vol. 18, No. 384, (P-1772) 19 Jul. 1994.

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