JPS5713303A - Device for detecting position - Google Patents

Device for detecting position

Info

Publication number
JPS5713303A
JPS5713303A JP8790680A JP8790680A JPS5713303A JP S5713303 A JPS5713303 A JP S5713303A JP 8790680 A JP8790680 A JP 8790680A JP 8790680 A JP8790680 A JP 8790680A JP S5713303 A JPS5713303 A JP S5713303A
Authority
JP
Japan
Prior art keywords
bilateral
terminal
switch
comparator
differential transformer
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
JP8790680A
Other languages
Japanese (ja)
Inventor
Shigeyoshi Kimura
Zenichi Hoshi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8790680A priority Critical patent/JPS5713303A/en
Publication of JPS5713303A publication Critical patent/JPS5713303A/en
Pending 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
    • G01D5/22—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 differentially influencing two coils

Abstract

PURPOSE:To reduce the size and prevent the reduction of detection accuracy due to changes in temperature by a device wherein output from the secondary winding is detected in a positive or negative level synchronously with AC power supplied to the primary winding of a differential transformer. CONSTITUTION:An AC power supply source 2 is connected to a primary winding 1A of a differential transformer 1, and bilateral switches 13, 15 are connected to a secondary winding 1B thereof, respectively. The other terminal of the bilateral switch 13 is connected to a low pass filter 4 and the other terminal of the switch 15 is grounded. Bilateral switches 14, 16 are connected to another secondary winding 1C of the differential transformer 1, respectively. The other terminal of the bilateral switch 14 is connected to the low pass filter 4 and the other terminal of the switch 16 is grounded. Output terminals of the AC power supply source 2 are connected to positive and negative input terminals of a comparator 11, respectively, and an output signal from the comparator 11 is in turn input to the bilateral switches 13, 16. A detection circuit 10 comprises the comparator 11, an inverter 12 and the bilateral switches 13, 14, 15 and 16.
JP8790680A 1980-06-30 1980-06-30 Device for detecting position Pending JPS5713303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8790680A JPS5713303A (en) 1980-06-30 1980-06-30 Device for detecting position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8790680A JPS5713303A (en) 1980-06-30 1980-06-30 Device for detecting position

Publications (1)

Publication Number Publication Date
JPS5713303A true JPS5713303A (en) 1982-01-23

Family

ID=13927946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8790680A Pending JPS5713303A (en) 1980-06-30 1980-06-30 Device for detecting position

Country Status (1)

Country Link
JP (1) JPS5713303A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61165750U (en) * 1985-04-04 1986-10-14
JPS6218150U (en) * 1985-07-17 1987-02-03
FR2656686A1 (en) * 1989-12-29 1991-07-05 Debreuille Pierre Jean Method and device for measuring the displacement of a point with respect to a reference.
JPH042368A (en) * 1990-04-20 1992-01-07 Keiji Kanosue Forest-bathing apparatus in electromagnetic field
WO1994008207A1 (en) * 1992-10-02 1994-04-14 Positek Limited Position sensors
JP2008102144A (en) * 2000-11-30 2008-05-01 Asylum Research Corp Improved linear variable differential transformer for high precision position measurement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4960944A (en) * 1972-10-16 1974-06-13
JPS50118224A (en) * 1974-03-04 1975-09-16

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4960944A (en) * 1972-10-16 1974-06-13
JPS50118224A (en) * 1974-03-04 1975-09-16

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61165750U (en) * 1985-04-04 1986-10-14
JPH02194Y2 (en) * 1985-04-04 1990-01-05
JPS6218150U (en) * 1985-07-17 1987-02-03
JPH0221081Y2 (en) * 1985-07-17 1990-06-07
FR2656686A1 (en) * 1989-12-29 1991-07-05 Debreuille Pierre Jean Method and device for measuring the displacement of a point with respect to a reference.
JPH042368A (en) * 1990-04-20 1992-01-07 Keiji Kanosue Forest-bathing apparatus in electromagnetic field
WO1994008207A1 (en) * 1992-10-02 1994-04-14 Positek Limited Position sensors
US5521496A (en) * 1992-10-02 1996-05-28 Positek Limited Detection circuits for position sensors
JP2008102144A (en) * 2000-11-30 2008-05-01 Asylum Research Corp Improved linear variable differential transformer for high precision position measurement

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