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JPS59158074

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DESCRIPTION JPS59158074
[0001]
Brief description of the drawings
[0002]
FIG. 1 is a cross-sectional view showing the structure of a conventional ultrasonic transducer,
FIG. 2 is a cross-sectional view showing the structure of an embodiment of the ultrasonic
transducer according to the present invention, and FIG. 4 shows an example using the ultrasonic
transducer according to the present invention as a speedometer, FIG. 5 is a block diagram
showing its electrical configuration, and FIG. 6 shows a specific example of the frequency
difference detection circuit in FIG. Shows an example of the basic circuit, FIG. 7 is a characteristic
diagram of the ultrasonic transducer, FIG. 8 is a concrete circuit example of the tuning amplifier
in FIG. 5, FIG. 9 is a characteristic diagram of the ultrasonic transducer, FIG. FIG. 10 is a speedreception frequency characteristic diagram. 11 ... a transmitter, 12 ... a receiver, 16 ... a receiving
horn.
02-05-2019
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