G - Physics – 01 – N
Patent
G - Physics
01
N
73/51
G01N 21/17 (2006.01) G01D 5/26 (2006.01) G01D 5/30 (2006.01) G01H 9/00 (2006.01) H04R 23/00 (2006.01)
Patent
CA 1207548
ABSTRACT OF THE DISCLOSURE A transducer apparatus for providing a linear response over a broad dynamic range. The transducer apparatus comprises an emitter for discharging rays therefrom, a detector having a fixed relative position with the emitter for accepting the rays discharged from the emitter and a reflecting device spaced from the emitter and the detector for reflecting the rays from the emitter to the detector, the rays or their prolongations converging toward a common focal point. The transducer apparatus measures a change in the distance between the location of the reflecting device and the location of the emitter and the detector, the measurement is based upon the difference in the amount of the rays accepted by the detector before and after the change in the distance between the location of said reflecting device and the location of said emitter and said detector. It is preferable that the reflecting device be between the emitter and the common focal point. The natural resonant frequency of the transducer apparatus of the present invention can be selectively adjusted.
439053
Gulf Applied Technologies Inc.
Riches Mckenzie & Herbert Llp
LandOfFree
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