Sensor which is sensitive to pressure, tension, torsion and heat

Details Sensor which is sensitive to pressure, tension, torsion and heat Sensor which is sensitive to pressure, tension, torsion and heat

1980-08-19

1984-03-13

Arnold, Bruce Y.

Optics: measuring and testing

By particle light scattering

With photocell detection

356350, G01B 902

Patent

active

044364229

ABSTRACT:
A sensor is disclosed which utilizes a ring interferometer for receiving light with a polarizer provided in each of the paths of the superimposed beams exiting the interferometer so that only light polarized in a fixed direction relative to the direction of polarization of the light being coupled into the interferometer is detected. The sensor is particularly adapted to determining influences such as pressures, tensions, torsion, and heat in addition to rotation. In one embodiment, the Faraday effect is utilized to compensate for transit time differences and the amount of energy required to compensate by the Faraday effect is measured to determine the amount of influence.

REFERENCES:
patent: 4299490 (1981-11-01), Cahill et al.
patent: 4302107 (1981-11-01), Schiffner et al.
Arditty, H., et al., "Re-Entrant Fiberoptic Approach to Rotation Sensing", SPIE, vol. 157, Laser Inertial Rotation Sensors, pp. 138-144.

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