Detector for detecting the state of electrically non-conductive

Details Detector for detecting the state of electrically non-conductive Detector for detecting the state of electrically non-conductive

1974-03-27

1977-08-09

Corbin, John K.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

250384, 73194F, G01N 2700, G01F 100

Patent

active

040413764

ABSTRACT:
This invention relates to a detector for detecting the state of electrically non-conductive or substantially electrically non-conductive fluid, such as its flowing velocity, direction, composition or pressure, comprising a transducer to generate an electric signal responsive to said state of said fluid, said transducer having at least one ionizing area exposed to said fluid and said electric signal appearing as variation in conductance across said ionizing area, an amplifier to amplify said electric signal from said transducer, having a high input impedance and a low output impedance, and means to shield said transducer and said amplifier.

REFERENCES:
patent: 2861452 (1958-11-01), Morgan
patent: 3662177 (1972-05-01), Sasaki et al.
patent: 3706938 (1972-12-01), Petriw

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