Fiber optic angular orientation sensor digital serial encoding

Details Fiber optic angular orientation sensor digital serial encoding Fiber optic angular orientation sensor digital serial encoding

1988-08-08

1991-08-27

Tarcza, Thomas H.

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

380 56, 25023113, G09C 106

Patent

active

050421573

ABSTRACT:
A sensor provides remote angular orientation sensing. A rotational signal transmitted to a rotatable input shaft mounted in an encoder body causes the shaft to rotate. Light signals are transmitted through a digital code wheel mounted to the shaft. As the code wheel and shaft rotate, the light signals passing through the code wheel are superimposed with light pulses corresponding to incremental and directional changes of angular position of the code wheel with respect to the encoder body. The light signals are propagated through an optical fiber to a remote combination digital and analog circuit which converts them into a digital representation of the angular position of the code wheel.

REFERENCES:
patent: 4078485 (1978-03-01), Guthrie
patent: 4146970 (1979-04-01), Edwards
patent: 4500779 (1985-02-01), Killingsworth
patent: 4511798 (1985-04-01), Killingsworth
patent: 4577414 (1986-03-01), Migliori et al.
patent: 4819051 (1989-04-01), Jacobson
Thesis: Methods of Remote Optical Angle Measurement with Compass Applicats, Newmaster 9/87.
Fiber Optic Rotary Position Transducer, De Paula et al 1987.
Channel Reduction Schemes for Fiber Optic Angle Encoders, Newmaster et al. 1988.
Remote Fiber Optic Sensors for Angular Orientation, Newmaster et al. 8/87.
Applications of Time & Wavelength Division Multiplexing to Digital Optical Code Plates, Varshenya et al. 1987.

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