Hand operated level detector

Details Hand operated level detector Hand operated level detector

1981-11-19

1984-04-17

Anderson, Bruce C.

Radiant energy

Invisible radiant energy responsive electric signalling

Fluent material level signalling

378 52, G01F 2300

Patent

active

044437021

ABSTRACT:
A hand-held, caliper-like detector suitable for measuring the level of a nongaseous substance in a cylinder has two extending arms. The arms of the caliper-like detector are adapted to extend around a part of the cylinder. A gamma radiation source is located on one arm and is adapted to emit gamma rays through a segment of the cylinder toward a scintillator. The scintillator is located on the second arm and is adapted to receive the gamma rays emitted by the radiation source. Various embodiments of the detector pertain to positioning of the radiation source, shielding the source when not in use, the angle subtended by an imaginery chord joining the source and scintillator, and fabrication of source and scintillator housing.

REFERENCES:
patent: 3697754 (1972-10-01), Maxwell
patent: 3716711 (1973-02-01), Olesen

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