JPS5722512A - Position detecting device - Google Patents

Position detecting device

Info

Publication number
JPS5722512A
JPS5722512A JP9700980A JP9700980A JPS5722512A JP S5722512 A JPS5722512 A JP S5722512A JP 9700980 A JP9700980 A JP 9700980A JP 9700980 A JP9700980 A JP 9700980A JP S5722512 A JPS5722512 A JP S5722512A
Authority
JP
Japan
Prior art keywords
magnet
travelling
coil
ultrasonic
displaces
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.)
Granted
Application number
JP9700980A
Other languages
Japanese (ja)
Other versions
JPS618366B2 (en
Inventor
Keiji Izuno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Copal Corp
Original Assignee
Nidec Copal Corp
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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP9700980A priority Critical patent/JPS5722512A/en
Publication of JPS5722512A publication Critical patent/JPS5722512A/en
Publication of JPS618366B2 publication Critical patent/JPS618366B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/48—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means
    • G01D5/485—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using wave or particle radiation means using magnetostrictive devices

Abstract

PURPOSE:To stabilize operation with a relatively simple structure, by using a permanent magnet as a detecting element for the position that displaces in accordance with the travelling of a travelling member. CONSTITUTION:An ultrasonic transmissive member 2 is arranged along the displacement process of a permanent magnet 1 that displaces to a position in correspondence with travelling of a travelling member, and around the member 2 a coil 3 is wound. Further, the ultrasonic pulse from a cable transmitter 5 propagates through an internal part of the member 2, and when it reaches a part corresponding to the position of the magnet 1, a voltage is generated in the coil 3 owing to the cooperation between the magnet 1 and the coil 3, and further, after amplification 4, the voltage is supplied to an operational circuit 7. In the circuit 7, with the input signal from the transmitter 5 as reference, the time needed for the ultrasonic wave to reache a wave receiver 6 and the time needed for it to reach the magnet 1 are calculated, and further a signal corresponding to the position of the magnet 1 is outputted.
JP9700980A 1980-07-16 1980-07-16 Position detecting device Granted JPS5722512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9700980A JPS5722512A (en) 1980-07-16 1980-07-16 Position detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9700980A JPS5722512A (en) 1980-07-16 1980-07-16 Position detecting device

Publications (2)

Publication Number Publication Date
JPS5722512A true JPS5722512A (en) 1982-02-05
JPS618366B2 JPS618366B2 (en) 1986-03-13

Family

ID=14180288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9700980A Granted JPS5722512A (en) 1980-07-16 1980-07-16 Position detecting device

Country Status (1)

Country Link
JP (1) JPS5722512A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937418A (en) * 1982-08-26 1984-02-29 Makome Kenkyusho:Kk Apparatus for measuring length using ultrasonic delay line
JPS608709A (en) * 1983-06-29 1985-01-17 Wacom Co Ltd Position detector
JPS60111918A (en) * 1983-11-22 1985-06-18 Wacom Co Ltd Position detecting apparatus
JPS60129616A (en) * 1983-12-17 1985-07-10 Wacom Co Ltd Coordinate position detector
JPS60135819A (en) * 1983-12-26 1985-07-19 Wacom Co Ltd Detecting device of positions of coordinates
JPS60140109A (en) * 1983-11-30 1985-07-25 ゲブハルト　バルフ，フアブリク　フアインメハニツシヤー　エルツオイグニツセ　ベルバルツングス　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Ultrasonic range finder
JPS60164214A (en) * 1984-02-07 1985-08-27 Wacom Co Ltd Position detector
US5198761A (en) * 1990-03-06 1993-03-30 Hitachi Construction Machinery Co., Ltd. Temperature compensated magnetostrictive piston position detector
GR920100119A (en) * 1992-03-24 1993-11-30 T E M A Technologiki Etaireia Position sensors based on the magnetostriction effect.
EP0611953A1 (en) * 1993-02-19 1994-08-24 Macome Corporation Length measuring apparatus
CN111077231A (en) * 2019-12-16 2020-04-28 华南理工大学 Ultrasonic detection method and equipment for transmitting reference phase discrimination

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937418A (en) * 1982-08-26 1984-02-29 Makome Kenkyusho:Kk Apparatus for measuring length using ultrasonic delay line
JPS608709A (en) * 1983-06-29 1985-01-17 Wacom Co Ltd Position detector
JPH0377526B2 (en) * 1983-11-22 1991-12-10 Wakomu Kk
JPS60111918A (en) * 1983-11-22 1985-06-18 Wacom Co Ltd Position detecting apparatus
JPS60140109A (en) * 1983-11-30 1985-07-25 ゲブハルト　バルフ，フアブリク　フアインメハニツシヤー　エルツオイグニツセ　ベルバルツングス　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Ultrasonic range finder
JPS60129616A (en) * 1983-12-17 1985-07-10 Wacom Co Ltd Coordinate position detector
JPH0215804B2 (en) * 1983-12-17 1990-04-13 Wakomu Kk
JPS60135819A (en) * 1983-12-26 1985-07-19 Wacom Co Ltd Detecting device of positions of coordinates
JPS60164214A (en) * 1984-02-07 1985-08-27 Wacom Co Ltd Position detector
US5198761A (en) * 1990-03-06 1993-03-30 Hitachi Construction Machinery Co., Ltd. Temperature compensated magnetostrictive piston position detector
GR920100119A (en) * 1992-03-24 1993-11-30 T E M A Technologiki Etaireia Position sensors based on the magnetostriction effect.
EP0611953A1 (en) * 1993-02-19 1994-08-24 Macome Corporation Length measuring apparatus
US5583433A (en) * 1993-02-19 1996-12-10 Macome Corporation Apparatus for measuring length using ultrasonic delay line and matching a phase of drive pulse with reflected pulse
CN111077231A (en) * 2019-12-16 2020-04-28 华南理工大学 Ultrasonic detection method and equipment for transmitting reference phase discrimination

Also Published As

Publication number Publication date
JPS618366B2 (en) 1986-03-13

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