Ultrasonic transmitter-receiver

Details Ultrasonic transmitter-receiver Ultrasonic transmitter-receiver

1997-12-03

2000-07-11

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310328, H04R 712, H04R 716, H04R 1700

Patent

active

06087760&

ABSTRACT:
In an ultrasonic transmitter-receiver for an apparatus for measuring the position or distance of an object, a composite vibrating unit is constructed with a piezoelectric vibrator and a cone, wherein a substantial conical vertex of the cone is connected to a center of vibration of the piezoelectric vibrator, and a node of vibration is generated on the cone at positions symmetrical about its center axis when the piezoelectric vibrator vibrates with deflection.

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