Multi-lever miniature fiber optic transducer

Details Multi-lever miniature fiber optic transducer Multi-lever miniature fiber optic transducer

1984-10-29

1986-07-08

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367149, 73655, 250227, H04R 2300, G01L 708

Patent

active

045997110

ABSTRACT:
An improved bifurcated multi-lever fiber optic transducer comprising one ht transmitting fiber and two receive fibers having different core diameters separated at one end and combined at the common distal end in the vicinity of a reflective surface parallel to the fiber end plane which is sensitive to axial motion caused by minute pressure changes, either in air or water, such that any displacement of the reflector from equilibrium will increase or decrease the illuminated areas of the two receive fibers which can be used to generate a processed output signal proportional to this motion. The resulting probe is of minimal diameter, has significantly improved sensitivity and produces an output independent of power variations at the input.

REFERENCES:
patent: 3580082 (1971-05-01), Strack
patent: 3831137 (1974-08-01), Cuomo
patent: 3940608 (1976-02-01), Kissinger et al.
patent: 4210029 (1980-07-01), Porter
patent: 4310905 (1982-01-01), Palmer
patent: 4329017 (1982-05-01), Kapany et al.
patent: 4446543 (1984-05-01), McLandrich et al.
patent: 4550975 (1985-11-01), Levinson et al.

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