Ultrasonic delay line device with an adjusting circuit for adjus

Details Ultrasonic delay line device with an adjusting circuit for adjus Ultrasonic delay line device with an adjusting circuit for adjus

1990-08-31

1992-08-25

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Delay lines including elastic bulk wave propagation means

333147, 333186, H03H 938

Patent

active

051422549

ABSTRACT:
An ultrasonic delay line device has an adjusting circuit for adjusting delay time provided between two terminals at the power input side of an ultrasonic delay line, wherein the adjusting circuit includes a serial connection of a fixed capacitor and a variable resistor connected between said two terminals of the power input side and a fixed coil connected in parallel with the serial connection of the fixed capacitor and the variable resistor.

REFERENCES:
patent: 3286205 (1966-11-01), Ballato
patent: 3581247 (1971-05-01), Belford et al.
patent: 3939442 (1976-02-01), Ogita
patent: 4492928 (1985-01-01), Hayakawa et al.
patent: 4734662 (1988-03-01), Izumida et al.

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