JPS59158074U

JPS59158074U - Ultrasonic transducer

Info

Publication number: JPS59158074U
Application number: JP5384583U
Authority: JP
Inventors: 大林　博明
Original assignee: 日産自動車株式会社
Priority date: 1983-04-11
Filing date: 1983-04-11
Publication date: 1984-10-23

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の超音波送受波器の構造を示す断面図、第
２図は本考案に係る超音波送受波器の一実施例の構造を
示す断面図、第３図はその正面図、第４図は本考案の超
音波送受波器を車速計として用いた例を示す図、第５図
はその電気的構成を示すブロック図、第６図は第５図に
おける周波数差検出回路の具体的回路例を示す図、第７
図は超音波送受波器の特性図、第８図は第５図における
同調増幅器の具体的回路例、第９図は超音波送受波器の
特性図、第１０図は速度−受信周波数特性図である。１１・・・送波器、１２・・・受波器、１６・・・受信
ホーン。FIG. 1 is a sectional view showing the structure of a conventional ultrasonic transducer, FIG. 2 is a sectional view showing the structure of an embodiment of the ultrasonic transducer according to the present invention, and FIG. 3 is a front view thereof. Fig. 4 is a diagram showing an example in which the ultrasonic transducer of the present invention is used as a vehicle speed meter, Fig. 5 is a block diagram showing its electrical configuration, and Fig. 6 is a specific example of the frequency difference detection circuit in Fig. 5. Figure 7 shows an example of a typical circuit.
The figure is a characteristic diagram of an ultrasonic transducer, Figure 8 is a specific circuit example of the tuned amplifier in Figure 5, Figure 9 is a characteristic diagram of an ultrasonic transducer, and Figure 10 is a velocity-reception frequency characteristic diagram. It is. 11... Transmitter, 12... Receiver, 16... Receiving horn.

Claims

[Claims for Utility Model Registration] An ultrasonic transmitter; - a receiver provided behind the transmitter and having a wave receiving surface in a direction opposite to the transmitting direction of the transmitter; The ultrasonic device is characterized by comprising: a horn disposed opposite to the wave receiving surface of the wave transmitter and collecting reflected waves of the ultrasonic waves transmitted from the wave transmitter and converging them on the wave receiving surface. Sound wave transducer.
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