Ultrasonic transducer with improved transient response and metho

Details Ultrasonic transducer with improved transient response and metho Ultrasonic transducer with improved transient response and metho

1975-11-28

1977-03-08

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

310 87, H01L 4108

Patent

active

040114732

ABSTRACT:
An ultrasonic transducer employs a ceramic disc which, when excited by a d-c pulse, vibrates in its planar resonant frequency mode. The sensitivity is selectively increased for the second positive half cycle of the transient oscillation of the disc and a method is described for using the selectively improved transient response to greatly increase the precision of measurement of the time interval for a transient pulse of ultrasonic energy to travel the distance between an ultrasonic transmitter and an ultrasonic receiver.

REFERENCES:
patent: 3325779 (1967-06-01), Supernaw et al.
patent: 3735159 (1973-05-01), Murry

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