Fiber-optic acceleration sensor with photoluminescent material
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United States of America Patent
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Mar 10, 1987
Grant Date -
N/A
app pub date -
Jan 24, 1985
filing date -
Jan 25, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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