Acousto-optical spectrum analyzer

Details Acousto-optical spectrum analyzer Acousto-optical spectrum analyzer

1983-11-07

1986-05-27

Punter, William H.

Electrical generator or motor structure

Dynamoelectric

Rotary

310313R, 324 77C, G02F 133, G01R 2316

Patent

active

045912416

ABSTRACT:
The invention relates to an acousto-optical device comprising a laser source, positioned in the vicinity of the center of curvature of a spherical cap, formed from an elasto-optical, piezoelectric substrate. A piezoelectric transducer deposited on this substrate makes it possible to generate a surface sound wave, which propagates on the outer surface of the spherical cap. The signal diffracted by the substrate is collected on a line of detectors, placed in a plane close to the center of curvature of the cap.

REFERENCES:
patent: 3633995 (1972-01-01), Lean et al.
patent: 3919669 (1975-11-01), Hartemann
Fujii et al., "Cylindrical Concave Diffraction Grating Utilizing Thin Silicon Chip", Electronics Letts. 11-26-81, pp. 934-936.
Chen et al., "New Grating Acoustic Scanner", 1978 Ultrasonics Symp. Proc., IEEE Cat. #78CH1344-1SU, Sep. 25-27, 1978, pp. 775-779.

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