KR970022216A - 차동트랜스 및 그것을 사용한 측정장치 - Google Patents

차동트랜스 및 그것을 사용한 측정장치 Download PDF

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KR970022216A
KR970022216A KR1019960043485A KR19960043485A KR970022216A KR 970022216 A KR970022216 A KR 970022216A KR 1019960043485 A KR1019960043485 A KR 1019960043485A KR 19960043485 A KR19960043485 A KR 19960043485A KR 970022216 A KR970022216 A KR 970022216A
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South Korea
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differential
coil
secondary coils
circumferential surface
differential transformer
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KR1019960043485A
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KR100425747B1 (ko
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하루오 고노
다카시 가자마
마코토 미야우치
요시카츠 아라야마
고타로 나가하라
순로쿠 스쿠모다
가쓰노리 이마이
유지 다카하시
Original Assignee
구미하시 요시유키
미츠비시신도 가부시키가이샤
오니시 다다시
도요다고키 가부시기가이샤
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Publication of KR970022216A publication Critical patent/KR970022216A/ko
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Publication of KR100425747B1 publication Critical patent/KR100425747B1/ko

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    • 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
    • G01D5/204—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 mutual induction between two or more coils
    • G01D5/2046—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 mutual induction between two or more coils by a movable ferromagnetic element, e.g. a core
    • 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
    • G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
    • G01B7/008—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points using coordinate measuring machines
    • G01B7/012—Contact-making feeler heads therefor
    • G01B7/016—Constructional details of contacts
    • 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
    • G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
    • 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
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • 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
    • G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

주위의 온도변화에 관계없이, 코어와 차동(差動)코일의 상대변위량에 따른 일정한 검출치가 얻어지는 차동트랜스를 제공한다.
비자성체(非磁性體)로 이루어지는 원통형의 보빈의 외주면에 1개의 1차 코일(32) 및 2개의 2차 코일(33), (34)을 감은 차동코일(35)과, 상기 차동코일내에 축선방향 이동가능하게 끼워진 자성체로 이루어지는 코어(36)로 구성되고, 상기 코어(36)와 상기 차동코일과의 상태변위량을 검출하는 차동트랜스에 있어서, 상기 2개의 2차 코일을 저항율의 온도계수가 상이한 최소한 2종류의 도선 A과 도선 B과를 소정의 비율로 결선한 복합도선에 의하여 구성한 것을 특징으로 하는 차동트랜스이다.

Description

차동트랜스 및 그것을 사용한 측정장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시형태인 칫수(定寸)장치를 나타낸 측면단면도,
제2도는 본 발명의 실시형태인 차동(差動) 트랜스의 확대도,
제3도는 차동트랜스의 결선(結船)을 나타낸 회로도,
제5도는 도선 B에 의하여 2차 코일이 구성되어 있는 차동트랜스의 온도특성을 나타낸 그래프,
제6도는 본 발명의 실시형태인 차동트랜스의 온도특성을 나타낸 그래프.

Claims (3)

  1. 비자성체(非磁性體)로 이루어지는 원통형의 보빈의 외주면 또는 내주면에 1개의 1차 코일 및 2개의 2차 코일을 감은 차동(差動)코일과, 상기 차동코일내에 축선방향 이동가능하게 끼워진 자성체로 이루어지는 코어로 구성되고, 상기 코어와 상기 차동코일과의 상대변위량을 검출하는 차동트랜스에 있어서, 상기 2개의 2차 코일을 저항율의 온도계수가 상이한 최소한 2종류의 도선을 소정의 비율로 결선한 복합도선에 의하여 각각 구성한 것을 특징으로 하는 차동트랜스.
  2. 비자성체로 이루어지는 원통형의 보빈의 외주면 또는 내주면에 1개의 1차 코일 및 2개의 2차 코일을 감은 차동코일과, 상기 차동코일내에 축선방향 이동가능하게 끼워진 자성체로 이루어지는 코어로 구성되고, 상기 코어와 상기 차동코일과의 상대변위량을 검출하는 차동트랜스에 있어서, 상기 2개의 2차 코일을 저항율의 온도 계수가 4.3×10-3보다 작거나 또는 부(負)의 값을 가지는 도선에 의하여 각각 구성한 것을 특징으로 하는 차동트랜스.
  3. 피측정물에 접촉하여 서로 상대변위가능한 1쌍의 필러와, 상기 1쌍의 필러의 상대변위량을 검출하는 차동트랜스를 가지고, 상기 피측정물의 횟수를 측정하는 측정장치에 있어서, 상기 차동트랜스는, 상기 필러의 한쪽에 대하여 고정된 비자성체로 이루어지는 원통형의 보빈의 외주면 또는 내주면에 1개의 1차 코일 및 2개의 2차 코일을 감은 차동코일과, 상기 필러의 다른 쪽에 대하여 고정되어 상기 차동코일내를 축선방향 이동가능하게 끼워진 자성체로 이루어지는 코어로 구성되고, 상기 2개의 2차 코일을 저항율의 온도계수가 상이한 최소한 2종류의 도선을 소정의 비율로 결선한 복합도선에 의하여 각각 구성한 것을 특징으로 하는 측정장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960043485A 1995-10-16 1996-10-01 차동트랜스 및 그것을 사용한 측정장치 KR100425747B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP95-266893 1995-10-16
JP7266893A JPH09113203A (ja) 1995-10-16 1995-10-16 差動トランスおよびそれを用いた測定装置
JP7-271337 1995-10-19
JP7-279498 1995-10-26
JP7-280870 1995-10-27

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KR970022216A true KR970022216A (ko) 1997-05-28
KR100425747B1 KR100425747B1 (ko) 2004-06-24

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US (1) US5789918A (ko)
JP (1) JPH09113203A (ko)
KR (1) KR100425747B1 (ko)
GB (1) GB2306665A (ko)

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Publication number Publication date
JPH09113203A (ja) 1997-05-02
GB9621585D0 (en) 1996-12-04
KR100425747B1 (ko) 2004-06-24
GB2306665A (en) 1997-05-07
US5789918A (en) 1998-08-04

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