Fiber optic small displacement sensor

Details Fiber optic small displacement sensor Fiber optic small displacement sensor

1980-03-24

1981-10-06

Lee, John D.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250237G, 350 9619, 356395, G02B 5172, G02B 518

Patent

active

042931886

ABSTRACT:
An opto-electronic transducer is provided for converting small displacements into optical intensity or phase variations which may then be converted into varying electric currents. A first optical fiber guide is disposed with its end face stationary, for example, while a second optical fiber guide is disposed so that its free end may be laterally displaced from the axis of the first guide in proportion to the parameter to be measured. The sensitivity of the transducer is enhanced through the use of large core, large numerical aperture, multimode optical fibers. The opposed faces of the cooperating fibers are equipped with or are used to illuminate regular arrays of equally spaced opaque, absorptive, or reflective grating systems providing intensity or phase modulation of the propagating light energy in proportion to wave guide deflection.

REFERENCES:
patent: 3344700 (1967-10-01), Brake
patent: 3768911 (1973-10-01), Erickson
patent: 4049965 (1977-09-01), Pettigrew
patent: 4071753 (1978-01-01), Fulenwider et al.
de Lang et al., "Accurate Digital Measurement of Displacements . . . ", Philips Tech. Rev., vol. 30, No. 6/7, 1969, pp. 149-160.
Harrison, "Digital Angular Displacement Measurement", IBM Tech. Discl. Bulletin, vol. 12, No. 7, Dec. 1969, p. 1045.

Affiliated with

Also associated with

Rating

Fiber optic small displacement sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fiber optic small displacement sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber optic small displacement sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1203547