Fiber-optic acceleration sensor with photoluminescent material

Details Fiber-optic acceleration sensor with photoluminescent material Fiber-optic acceleration sensor with photoluminescent material

1985-01-24

1987-03-10

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250231R, 73517R, 350 9634, 350 961, H01J 516

Patent

active

046492712

ABSTRACT:
A fiber-optic sensor for sensing dynamic acceleration is arranged so that the acceleration gives rise to changes in angle between at least one body and the optical axis of at least one lens of graded index type (GRIN lens). At least one optical fiber is arranged to transmit optical energy to and from one end surface of the lens. The optical energy reflected back into the fiber is dependent on the angle and essentially independent of the distance between the body and the lens, and the sensor comprises at least one photoluminescent material so that a part of the optical output signal from the sensor includes a photoluminescent signal.

REFERENCES:
patent: 4268112 (1981-05-01), Peterson
patent: 4353259 (1982-10-01), Schneider, Jr.
patent: 4569570 (1986-02-01), Brogardh et al.
patent: 4592664 (1986-06-01), Bislenga et al.

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