Ultrasonic sensor with temperature compensation capacitor

Details Ultrasonic sensor with temperature compensation capacitor Ultrasonic sensor with temperature compensation capacitor

1998-01-13

1999-11-23

Williams, Hezron

Measuring and testing

Vibration

By mechanical waves

310315, 310334, 310336, 310346, C01N 2900

Patent

active

059879920

ABSTRACT:
An ultrasonic sensor has a built-in temperature compensation capacitor housed in a casing and facilitates an inside-the-casing lead-wire bonding connection process and a connection verifying process while increasing reliability. The ultrasonic sensor is provided with a piezoelectric vibration element and a capacitor for temperature compensation capacitor both housed in a casing. The temperature compensation capacitor includes a pair of electrodes located on one common surface of a dielectric body thus allowing the ultrasonic sensor to be electrically connected to lead wires on the one common surface.

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patent: 4608506 (1986-08-01), Tanuma
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patent: 5517845 (1996-05-01), Yamashita et al.
patent: 5608359 (1997-03-01), Knecht et al.
patent: 5734087 (1998-03-01), Yamashita

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