Photo-acoustic detector

Details Photo-acoustic detector Photo-acoustic detector

1988-10-13

1990-02-20

Kyle, Deborah L.

Communications, electrical: acoustic wave systems and devices

Signal transducers

250341, 2503361, 356432, 356216, H04R 2300

Patent

active

049032488

ABSTRACT:
The present invention pertains to a photo-acoustic apparatus for detecting energy that exits from the end of an optical fiber waveguide device. The photo-acoustic apparatus includes a housing having an opening through which the end of the optical waveguide device extends into the housing. The gas fills the housing and is capable of absorbing energy that exits the end of the optical waveguide device. The gas increases in pressure corresponding to the energy absorbed by it. There is also a pressure sensor such as a capacitor micorphone disposed in said housing which is capable of sensing the pressure of the gas and producing an electrical signal proportional to the energy which exits the optical waveguide device. Alternatively, a solid absorber is disposed in the housing that absorbs energy that exits from the end of the optical waveguide device. The gas filling the housing, in this case, does not absorb any of the energy.

REFERENCES:
patent: 3948345 (1976-04-01), Rosencwaig
patent: 4184768 (1980-01-01), Murphy et al.
patent: 4299494 (1981-11-01), Badoz et al.
patent: 4408478 (1983-10-01), Bechthold et al.
patent: 4543486 (1985-09-01), Rose
patent: 4666308 (1987-05-01), Williams
patent: 4683750 (1987-08-01), Kino et al.

Affiliated with

Also associated with

Rating

Photo-acoustic detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photo-acoustic detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photo-acoustic detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1621697