JPS56115903A - Measuring device for relative displacement angle in rotating condition - Google Patents

Measuring device for relative displacement angle in rotating condition

Info

Publication number
JPS56115903A
JPS56115903A JP1778680A JP1778680A JPS56115903A JP S56115903 A JPS56115903 A JP S56115903A JP 1778680 A JP1778680 A JP 1778680A JP 1778680 A JP1778680 A JP 1778680A JP S56115903 A JPS56115903 A JP S56115903A
Authority
JP
Japan
Prior art keywords
exciting
relative displacement
current
displacement angle
pair
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
JP1778680A
Other languages
Japanese (ja)
Other versions
JPH0238883B2 (en
Inventor
Wahei Inoue
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.)
Mayekawa Manufacturing Co
Original Assignee
Mayekawa Manufacturing Co
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 Mayekawa Manufacturing Co filed Critical Mayekawa Manufacturing Co
Priority to JP1778680A priority Critical patent/JPS56115903A/en
Publication of JPS56115903A publication Critical patent/JPS56115903A/en
Publication of JPH0238883B2 publication Critical patent/JPH0238883B2/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
    • G01D5/12—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 electric or magnetic means
    • G01D5/14—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 electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/2006—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2013—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by a movable ferromagnetic element, e.g. a core

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To perform the measurement of the relative displacement angle easily and highly precisely by providing a pair of induction iron cores on a concentric axis and further by providing a fixed exciting linear wheel surrounding the outside peripheries of the cores. CONSTITUTION:A magnetic circuit 9 is formed of disc-shaped yokes 1 and 2 fitted to a pair of rotary shafts (a) and (b), of the induction iron cores 3 and 4 having opposed faces 5 and 6 and of a fixed yoke 7 retaining the exciting linear wheel 8. The surfaces 5 and 6 opposed to a pair of the disc-shaped yokes 1 and 2 are assumed to face right, and when AC current is impressed on the exciting linear wheel 8 under the condition, AC exciting current in accordance with the circuit impedance thereof. This AC current becomes base current, and owing to the relative displacement angle theta of the opposed surfaces 5 and 6, a gap in the magnetic circuit increases and the magnetic resistance changes. That is, the impedance of the linear wheel decreases, while the exciting current increases. Accordingly, by measuring the value of exciting current, the relative displacement angle theta of the shafts (a) and (b) can be found.
JP1778680A 1980-02-18 1980-02-18 Measuring device for relative displacement angle in rotating condition Granted JPS56115903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1778680A JPS56115903A (en) 1980-02-18 1980-02-18 Measuring device for relative displacement angle in rotating condition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1778680A JPS56115903A (en) 1980-02-18 1980-02-18 Measuring device for relative displacement angle in rotating condition

Publications (2)

Publication Number Publication Date
JPS56115903A true JPS56115903A (en) 1981-09-11
JPH0238883B2 JPH0238883B2 (en) 1990-09-03

Family

ID=11953390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1778680A Granted JPS56115903A (en) 1980-02-18 1980-02-18 Measuring device for relative displacement angle in rotating condition

Country Status (1)

Country Link
JP (1) JPS56115903A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883214A (en) * 1981-11-13 1983-05-19 Mayekawa Mfg Co Ltd Construction of exciting magnetic circuit for measuring device of relative displacement angle
JPS58147609A (en) * 1982-02-26 1983-09-02 Mayekawa Mfg Co Ltd Rotor magnetic circuit of device for measuring relative displacement angle
JPS59162411A (en) * 1983-03-07 1984-09-13 Mayekawa Mfg Co Ltd Magnetic circuit of rotor of relative displacement angle transducer
JPS59185607U (en) * 1983-05-26 1984-12-10 株式会社　前川製作所 Induction type relative displacement angle transducer with splitter structure
JPH0198933A (en) * 1987-10-12 1989-04-17 Toshiba Corp Torsion bar type torque detecting device
JPH01102735U (en) * 1987-12-25 1989-07-11

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51126176U (en) * 1975-04-07 1976-10-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51126176U (en) * 1975-04-07 1976-10-13

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883214A (en) * 1981-11-13 1983-05-19 Mayekawa Mfg Co Ltd Construction of exciting magnetic circuit for measuring device of relative displacement angle
JPS58147609A (en) * 1982-02-26 1983-09-02 Mayekawa Mfg Co Ltd Rotor magnetic circuit of device for measuring relative displacement angle
JPS59162411A (en) * 1983-03-07 1984-09-13 Mayekawa Mfg Co Ltd Magnetic circuit of rotor of relative displacement angle transducer
JPS59185607U (en) * 1983-05-26 1984-12-10 株式会社　前川製作所 Induction type relative displacement angle transducer with splitter structure
JPH0198933A (en) * 1987-10-12 1989-04-17 Toshiba Corp Torsion bar type torque detecting device
JPH01102735U (en) * 1987-12-25 1989-07-11

Also Published As

Publication number Publication date
JPH0238883B2 (en) 1990-09-03

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