JPS5523420A - Displacement position detector - Google Patents

Displacement position detector

Info

Publication number
JPS5523420A
JPS5523420A JP9388278A JP9388278A JPS5523420A JP S5523420 A JPS5523420 A JP S5523420A JP 9388278 A JP9388278 A JP 9388278A JP 9388278 A JP9388278 A JP 9388278A JP S5523420 A JPS5523420 A JP S5523420A
Authority
JP
Japan
Prior art keywords
wire
magnet
displacement position
ultrasonic signal
couples
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
JP9388278A
Other languages
Japanese (ja)
Inventor
Isamu Ono
Toshitsugu Ueda
Seiki Ra
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works Ltd
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 Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Hokushin Electric Corp
Priority to JP9388278A priority Critical patent/JPS5523420A/en
Publication of JPS5523420A publication Critical patent/JPS5523420A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To enable a simple constitution to detect mechanical displacement with high reliability by coupling a magnet with a magnetostriction strain wire.
CONSTITUTION: This detector consists of excitation method 2 which couples with magnetostrictive wire 1 and generates an ultrasonic signal in wire 1, magnet 4 which provides a magnetic field to wire 1 while moving along wire 1, method 3 which couples with wire 1 and receives a reflected ultrasonic signal reflected at the position of magnet 4, and circuit CU which generates a signal relating to the displacement position of magnet 4 by receiving a signal relating the time required by the ultrasonic signal generated in wire 1 by excitation method 2 to go and return between receiving method 3 and magnet 4. Consequently, displacement position detection can be carried out with high reliability.
COPYRIGHT: (C)1980,JPO&Japio
JP9388278A 1978-08-01 1978-08-01 Displacement position detector Pending JPS5523420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9388278A JPS5523420A (en) 1978-08-01 1978-08-01 Displacement position detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9388278A JPS5523420A (en) 1978-08-01 1978-08-01 Displacement position detector

Publications (1)

Publication Number Publication Date
JPS5523420A true JPS5523420A (en) 1980-02-19

Family

ID=14094836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9388278A Pending JPS5523420A (en) 1978-08-01 1978-08-01 Displacement position detector

Country Status (1)

Country Link
JP (1) JPS5523420A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930013A (en) * 1982-08-13 1984-02-17 Tokyo Electric Power Co Inc:The Position detector
JPS5937418A (en) * 1982-08-26 1984-02-29 Makome Kenkyusho:Kk Apparatus for measuring length using ultrasonic delay line
JPS61194313A (en) * 1985-02-23 1986-08-28 Sankyo Boeki Kk Supersonic signal detection of displacement detector
JPS61280519A (en) * 1985-06-05 1986-12-11 Sankyo Boeki Kk Apparatus for detecting displacement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257845A (en) * 1975-11-03 1977-05-12 Combustion Eng Apparatus for indicating and method of detecting position of moving body

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5257845A (en) * 1975-11-03 1977-05-12 Combustion Eng Apparatus for indicating and method of detecting position of moving body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930013A (en) * 1982-08-13 1984-02-17 Tokyo Electric Power Co Inc:The Position detector
JPS5937418A (en) * 1982-08-26 1984-02-29 Makome Kenkyusho:Kk Apparatus for measuring length using ultrasonic delay line
JPS61194313A (en) * 1985-02-23 1986-08-28 Sankyo Boeki Kk Supersonic signal detection of displacement detector
JPS61280519A (en) * 1985-06-05 1986-12-11 Sankyo Boeki Kk Apparatus for detecting displacement

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