JPS5611311A - Distance sensor - Google Patents

Distance sensor

Info

Publication number
JPS5611311A
JPS5611311A JP8652279A JP8652279A JPS5611311A JP S5611311 A JPS5611311 A JP S5611311A JP 8652279 A JP8652279 A JP 8652279A JP 8652279 A JP8652279 A JP 8652279A JP S5611311 A JPS5611311 A JP S5611311A
Authority
JP
Japan
Prior art keywords
pulse
distance
ultrasonic
generated
generator
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
JP8652279A
Other languages
Japanese (ja)
Inventor
Kaneo Mori
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP8652279A priority Critical patent/JPS5611311A/en
Publication of JPS5611311A publication Critical patent/JPS5611311A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make a distance sensor high-precision and enhance reliability against mechanical and chemical disturbance to improve temperature stability, by providing a pulse magnetic field generator and so on to utilize the ultrasonic propagation characteristic of the continuous thin band of an amorphous magnetic alloy.
CONSTITUTION: When a pulse signal is input to pulse magnetic field generator 2 to exicite amorphous magnetic alloy continuous thin band 1, ultrasonic waves are generated. They are propagated in the longitudinal direction of thin band 1 and reach distance X from generator 2 to generate ultrasonic pulses. A pulse signal of change of the magnetic characteristic such as magnetic flux is generated by these ultrasonic pulses. Therefore, pulse voltage eOUT is generated in detector 35 placed at distance X. At this time, the pulse train signal input to magnetic field generator 2 and pulse voltage eOUT are used and are compared with each other by various methods to obtain the ultrasonic propagation time, and this time is proportional to distance X from generator 2 to detector 35, and therefore, a high-precision distance sensor can be constituted. The ultrasonic propagation property in the amorphous magnetic alloy is good, so that reliability against disturbance and temperature stability can be improved.
COPYRIGHT: (C)1981,JPO&Japio
JP8652279A 1979-07-10 1979-07-10 Distance sensor Pending JPS5611311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8652279A JPS5611311A (en) 1979-07-10 1979-07-10 Distance sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8652279A JPS5611311A (en) 1979-07-10 1979-07-10 Distance sensor

Publications (1)

Publication Number Publication Date
JPS5611311A true JPS5611311A (en) 1981-02-04

Family

ID=13889313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8652279A Pending JPS5611311A (en) 1979-07-10 1979-07-10 Distance sensor

Country Status (1)

Country Link
JP (1) JPS5611311A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189515A (en) * 1982-04-02 1983-11-05 イ−ストマン　コダック　カンパニ− Position detector by magnetostriction action
JPS5937418A (en) * 1982-08-26 1984-02-29 Makome Kenkyusho:Kk Apparatus for measuring length using ultrasonic delay line
JPS6044814A (en) * 1983-08-22 1985-03-11 Oki Electric Ind Co Ltd Generating method of ultrasonic wave signal
JPS6061607U (en) * 1983-10-05 1985-04-30 横河電機株式会社 Displacement position detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991014A (en) * 1972-12-26 1974-08-30
JPS5257845A (en) * 1975-11-03 1977-05-12 Combustion Eng Apparatus for indicating and method of detecting position of moving body
JPS5258946A (en) * 1975-11-10 1977-05-14 Yokogawa Hokushin Electric Corp Displacement detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4991014A (en) * 1972-12-26 1974-08-30
JPS5257845A (en) * 1975-11-03 1977-05-12 Combustion Eng Apparatus for indicating and method of detecting position of moving body
JPS5258946A (en) * 1975-11-10 1977-05-14 Yokogawa Hokushin Electric Corp Displacement detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189515A (en) * 1982-04-02 1983-11-05 イ−ストマン　コダック　カンパニ− Position detector by magnetostriction action
JPS5937418A (en) * 1982-08-26 1984-02-29 Makome Kenkyusho:Kk Apparatus for measuring length using ultrasonic delay line
JPS6044814A (en) * 1983-08-22 1985-03-11 Oki Electric Ind Co Ltd Generating method of ultrasonic wave signal
JPH0347443B2 (en) * 1983-08-22 1991-07-19 Oki Electric Ind Co Ltd
JPS6061607U (en) * 1983-10-05 1985-04-30 横河電機株式会社 Displacement position detection device

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