Measuring and testing – Fluid pressure gauge – Photoelectric
Patent
1982-09-30
1985-04-09
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Photoelectric
250227, 250231P, G01B 1100, G01L 706
Patent
active
045093709
ABSTRACT:
Apparatus and method for sensing changes in pressure and for generating optical signals related to changes in pressure. Light from a fiber optic is directed to a movable surface which is coated with a light-responsive material, and which moves relative to the end of the fiber optic in response to changes in pressure. The same fiber optic collects a portion of the reflected or emitted light from the movable surface. Changes in pressure are determined by measuring changes in the amount of light collected.
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Macevicz Stephen C.
Regents of the University of California
Woodiel Donald O.
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