JPS57127801A - Device for detecting position of moving bar-like member - Google Patents

Device for detecting position of moving bar-like member

Info

Publication number
JPS57127801A
JPS57127801A JP56001661A JP166181A JPS57127801A JP S57127801 A JPS57127801 A JP S57127801A JP 56001661 A JP56001661 A JP 56001661A JP 166181 A JP166181 A JP 166181A JP S57127801 A JPS57127801 A JP S57127801A
Authority
JP
Japan
Prior art keywords
moving bar
bar
winding
voltage
stored
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
JP56001661A
Other languages
Japanese (ja)
Other versions
JPS6364757B2 (en
Inventor
Toshifumi Hayakawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56001661A priority Critical patent/JPS57127801A/en
Publication of JPS57127801A publication Critical patent/JPS57127801A/en
Publication of JPS6364757B2 publication Critical patent/JPS6364757B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Recording Measured Values (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE:To trace the cause of falling accidents of a moving bar-like member by a device wherein voltage changes due to a change in self-inductance of detection windings and induced voltage along with movement of the moving bar-like member are stored and thus stored data is transferred to a recorder after falling of the moving bar- like member has occurred. CONSTITUTION:When a moving bar-like member 4 is inserted into a detection winding 1 being excited by an AC power supply 2, self-inductance of the winding is increased so that there occurs a difference among inductances of the respective windings 1a-1e. This difference is detected by a position signal generator 5 and then indicated on a display 6. When the bar-like member 4 moves at a certain speed, the bar-like member magnetized by an alternating magnetic field within the detection winding induces voltage in proportion to the speed on the respective windings. Thus, a change in the inductance and the induced voltage are taken out in the form of an AC component VA and a DC component VO of voltage across a resistor 8, respectively. Both voltages are added by an adder 10 via an AC-DC converter 11 and then stored in a storage 12 for a period of time T. In the event of falling accidents, a signal from the winding 1b is used for a controller 13 to trigger the storage 12 within the period of time T, so that the stored content is recorded on a recorder 14.
JP56001661A 1981-01-08 1981-01-08 Device for detecting position of moving bar-like member Granted JPS57127801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56001661A JPS57127801A (en) 1981-01-08 1981-01-08 Device for detecting position of moving bar-like member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56001661A JPS57127801A (en) 1981-01-08 1981-01-08 Device for detecting position of moving bar-like member

Publications (2)

Publication Number Publication Date
JPS57127801A true JPS57127801A (en) 1982-08-09
JPS6364757B2 JPS6364757B2 (en) 1988-12-13

Family

ID=11507699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56001661A Granted JPS57127801A (en) 1981-01-08 1981-01-08 Device for detecting position of moving bar-like member

Country Status (1)

Country Link
JP (1) JPS57127801A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60105916A (en) * 1983-11-14 1985-06-11 Mitsubishi Electric Corp Apparatus for detecting moving matter
JPS62204108A (en) * 1986-02-27 1987-09-08 ウエスチングハウス・エレクトリック・コ−ポレ−ション Position indicator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60105916A (en) * 1983-11-14 1985-06-11 Mitsubishi Electric Corp Apparatus for detecting moving matter
JPS62204108A (en) * 1986-02-27 1987-09-08 ウエスチングハウス・エレクトリック・コ−ポレ−ション Position indicator
JPH0549041B2 (en) * 1986-02-27 1993-07-23 Westinghouse Electric Corp

Also Published As

Publication number Publication date
JPS6364757B2 (en) 1988-12-13

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