Optical weighing scale utilizing a prism

Details Optical weighing scale utilizing a prism Optical weighing scale utilizing a prism

1983-03-14

1985-08-20

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

177DIG6, 350286, 356136, 73705, G01L 124

Patent

active

045366519

ABSTRACT:
An optical transducer that uses a prism for the purpose of determining a load applied thereto which may be used to find the weight of an object. In accordance with known optical principals, when a load is applied to a material such as plastic, glass, crystal and the like, its index of refraction changes. By measuring the change of intensity of light internally reflected from a prism made of such material, the magnitude of a load applied thereto can be determined.

REFERENCES:
patent: 4322979 (1982-04-01), Fromm
patent: 4408123 (1983-10-01), Sichling et al.

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