Optical transducer for measuring pressure

Details Optical transducer for measuring pressure Optical transducer for measuring pressure

1992-11-06

1994-05-10

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

73705, G01D 534

Patent

active

053110145

ABSTRACT:
Differential displacement is optically detected by independent movement of either a collimated light source or a dual element photosensitive detector. Relative movement between the detector or light source generates a signal proportional to the amount of light striking the photosensitive elements. This invention relates to improved devices for the transformation of physical forces into mechanical and electro-optical response, for measuring the forces involved, and, in particular for wet/wet liquid and gas differential, gage and absolute, pressure measurements.

REFERENCES:
patent: 2443427 (1948-06-01), Kidder et al.
patent: 3817625 (1974-06-01), Jordan
patent: 4620093 (1986-10-01), Barkhoudarian et al.
patent: 4667097 (1987-05-01), Fasching et al.

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