JPS61137229U

JPS61137229U -

Info

Publication number: JPS61137229U
Application number: JP2084185U
Authority: JP
Priority date: 1985-02-16
Filing date: 1985-02-16
Publication date: 1986-08-26

Description

[Brief explanation of drawings]

第１図は従来装置の構成を示す説明図である。
第２図〜第６図はこの考案の実施例に関するもの
であり、第２図は第１実施例の構成を示すブロツ
ク図、第３図はその要部である前置信号処理回路
の構成を示す回路図、第４図は第２実施例の構成
を示すブロツク図、第５図はその要部である前置
信号処理回路の構成を示す回路図、第６図は第２
実施例の変形実施態様に係る前置信号処理回路の
構成を示す回路図である。１……管路、１ａ……管壁、３２……伝導くさ
び、３３，３３′……送信用超音波素子、３４，
３４′……受信用超音波素子、３８……交流増幅
器、３９……インピーダンス変換器、３１……ケ
ース。 FIG. 1 is an explanatory diagram showing the configuration of a conventional device.
Figures 2 to 6 relate to embodiments of this invention. Figure 2 is a block diagram showing the configuration of the first embodiment, and Figure 3 shows the configuration of the pre-signal processing circuit, which is the main part. 4 is a block diagram showing the configuration of the second embodiment, FIG. 5 is a circuit diagram showing the configuration of the pre-signal processing circuit which is the main part, and FIG.
FIG. 3 is a circuit diagram showing the configuration of a pre-signal processing circuit according to a modified embodiment of the embodiment. 1...Pipeline, 1a...Pipe wall, 32...Conduction wedge, 33, 33'...Transmission ultrasonic element, 34,
34'... Ultrasonic element for reception, 38... AC amplifier, 39... Impedance converter, 31... Case.

Claims

[Claims for Utility Model Registration] Pipe walls 1a, 1a of the pipe 1 through which the fluid to be measured passes
′, one side of which is in contact with the conductive wedge 32
, 32', and a transmitting/receiving ultrasonic element 33 fixed on the other side of the conduction wedge 32, 32' with its beam axis maintaining a predetermined angle of inclination with respect to the tube walls 1a, 1a'.
34, 33', 34', an AC amplifier 38 connected to the receiving ultrasonic elements 34, 34', and an impedance converter 39 connected to the AC amplifier 38 are integrally housed in the case 31, 31'. Ultrasonic transducer built-in.