Encapsulated motion transducer

Details Encapsulated motion transducer Encapsulated motion transducer

1986-07-18

1989-05-02

Rosenberger, R. A.

Optics: measuring and testing

By polarized light examination

With light attenuation

73655, G01B 1114

Patent

active

048263222

ABSTRACT:
A transducer system for detecting and measuring the displacement and/or vibration of objects placed in contact therewith. The system includes a reflective target for reflecting incident light and vibrating in unison with a contacted object. Fiber optics guide light from a light source to the target via a light coupling medium, and back to a signal generator. A truncated spherical member, providing the target and the object contacting surface, is biased by Belleville springs. The light guiding fiber optics, springs and light coupling medium are sealed from the hostile environment of the transducer.

REFERENCES:
patent: 3847015 (1974-12-01), Blatter

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