JPS60131867U - AC motor rotation detection sensor - Google Patents

AC motor rotation detection sensor

Info

Publication number
JPS60131867U
JPS60131867U JP8387083U JP8387083U JPS60131867U JP S60131867 U JPS60131867 U JP S60131867U JP 8387083 U JP8387083 U JP 8387083U JP 8387083 U JP8387083 U JP 8387083U JP S60131867 U JPS60131867 U JP S60131867U
Authority
JP
Japan
Prior art keywords
voltage
detection sensor
rotation detection
reference voltage
motor rotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8387083U
Other languages
Japanese (ja)
Inventor
弘 長島
神谷　征男
Original Assignee
北海道生コンクリート工業組合
札幌生コンクリート協同組合
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北海道生コンクリート工業組合, 札幌生コンクリート協同組合 filed Critical 北海道生コンクリート工業組合
Priority to JP8387083U priority Critical patent/JPS60131867U/en
Publication of JPS60131867U publication Critical patent/JPS60131867U/en
Pending legal-status Critical Current

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  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例に係る電動機回転検知センサ
のブロック図である。 １：コイル、２：増幅器、３：絶対値回路、４：フィル
タ回路、５：基準電圧設定器、６：比較器、７：断線／
短絡検知回路。　゛FIG. 1 is a block diagram of a motor rotation detection sensor according to an embodiment of the present invention. 1: Coil, 2: Amplifier, 3: Absolute value circuit, 4: Filter circuit, 5: Reference voltage setter, 6: Comparator, 7: Disconnection/
Short circuit detection circuit.゛

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 交流電動機の回転によって周囲に発生する交播磁界を検
出するコイルと、このコイルに流れる電流を電圧に変換
し、増幅する増幅器と、この増幅器の出力電圧を直流電
圧に変換する直流電圧変換回路と、基準電圧を設定する
基準電圧設定器と、前記直流電圧と前記基準電圧を比較
し、前記直流電圧が前記基準電圧を超えた場合に前記交
流電動機が回転している旨の信号を出力する比較器とを
備えてなることを特徴とする交流電動機回転検知センサ
。A coil that detects the alternating magnetic field generated around the rotation of an AC motor, an amplifier that converts the current flowing through this coil into voltage and amplifies it, and a DC voltage conversion circuit that converts the output voltage of this amplifier to DC voltage. , a reference voltage setting device that sets a reference voltage; and a comparison device that compares the DC voltage and the reference voltage and outputs a signal indicating that the AC motor is rotating when the DC voltage exceeds the reference voltage. An AC motor rotation detection sensor comprising:
JP8387083U 1983-06-03 1983-06-03 AC motor rotation detection sensor Pending JPS60131867U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8387083U JPS60131867U (en) 1983-06-03 1983-06-03 AC motor rotation detection sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8387083U JPS60131867U (en) 1983-06-03 1983-06-03 AC motor rotation detection sensor

Publications (1)

Publication Number Publication Date
JPS60131867U true JPS60131867U (en) 1985-09-03

Family

ID=30632887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8387083U Pending JPS60131867U (en) 1983-06-03 1983-06-03 AC motor rotation detection sensor

Country Status (1)

Country Link
JP (1) JPS60131867U (en)

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