Ionization chamber type gas leak detector operating in the high

Details Ionization chamber type gas leak detector operating in the high Ionization chamber type gas leak detector operating in the high

1974-07-22

1977-10-11

Corbin, John K.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 36, G01N 2766

Patent

active

040538257

ABSTRACT:
A lower power consumption gas leak detector device includes an ionization chamber with a radioactive source and pointed electrode in close proximity thereto supported within the ionization chamber. The pointed electrode provides a region of high electric field with a lower applied voltage so that the gas leak detector provides a significantly larger current signal for a particular gas leak rate with the device operating in the high voltage avalanche region than if the device was operating in the saturated current region of the current versus applied voltage characteristics of the device.

REFERENCES:
patent: 2740894 (1956-04-01), Deisler, Jr. et al.
patent: 3009096 (1961-11-01), Vanderschmidt
patent: 3009098 (1961-11-01), Simons, Jr.
patent: 3071704 (1963-01-01), Reich
patent: 3361907 (1968-01-01), Gregory
Weast, R. C., (editor), "Handbook of Chem. & Phys.," CRC Press, 1974-1975, 55th edition, pp. B4-B6.
Brown, S. C., "Basic Data of Plasma Physics," M.I.T. Press, 1959, pp. 122-131.
Weissler et al., "Negative Corona in Freon-Air Mixtures" and Positive Corona in Freon-Air Mixtures, Phys. Rev., vol. 72, 1947, pp. 289-297.

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