Alkane gas sensor comprising tin oxide semiconductor with large

Details Alkane gas sensor comprising tin oxide semiconductor with large Alkane gas sensor comprising tin oxide semiconductor with large

1983-12-22

1985-08-13

Envall, Jr., Roy N.

Electrical resistors

Resistance value responsive to a condition

Gas, vapor, or moisture absorbing or collecting

73 23, G01N 2712, H01L 700

Patent

active

045353158

ABSTRACT:
A gas sensor comprising a layer of sintered tin oxide having a large specific surface area and high activity to oxidize and eliminate alcohol, benzene and other miscellaneous gases, whereby the sensor selectively detects alkane gases such as methane gas, propane gas and butane gas. The alkane gas is absorbed thereby decreasing an electrical resistance of the sensor in order to detect the existence of the gas.

REFERENCES:
patent: 4313338 (1982-02-01), Abe et al.
patent: 4359709 (1982-11-01), Nakatani et al.
patent: 4459577 (1984-07-01), Murakami et al.
Heiland, "Homogeneous Semiconductor Gas Sensors", Sensors & Actuators, vol. 2, No. 4, Sep. 1982, pp. 343-359.

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