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KR930013677A - 변위 측정장치 - Google Patents

변위 측정장치 Download PDF

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Publication number
KR930013677A
KR930013677A KR1019920024850A KR920024850A KR930013677A KR 930013677 A KR930013677 A KR 930013677A KR 1019920024850 A KR1019920024850 A KR 1019920024850A KR 920024850 A KR920024850 A KR 920024850A KR 930013677 A KR930013677 A KR 930013677A
Authority
KR
South Korea
Prior art keywords
oscillator
frequency
displacement
microprocessor
sensor head
Prior art date
Application number
KR1019920024850A
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English (en)
Inventor
토니 쿡 스테판
앤소니 스노드 케빈
데니스 웰러 더글러스
슈트어트 버릿지 로버트
비비안 루이스 애드리안
Original Assignee
원본미기재
슈럼버거 인더스트리즈 리미티드
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 원본미기재, 슈럼버거 인더스트리즈 리미티드 filed Critical 원본미기재
Publication of KR930013677A publication Critical patent/KR930013677A/ko

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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
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • 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
    • G01D5/2208—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 by influencing the self-induction of the coils
    • G01D5/2216—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 by influencing the self-induction of the 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
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • 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
    • G01D3/02—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation
    • G01D3/022—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation having an ideal characteristic, map or correction data stored in a digital memory
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
    • G01B2210/60—Unique sensor identification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Technology Law (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Electronic Switches (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

본 발명은 센서를 사용하여 변위를 측정하는 장치에 관한 것으로서, 측정헤드(1)는 코일내의 코어의 움직임에 의한 발진기의 주파수 변화로써 변위를 측정하고, 발진기로부터의 신호는 고주파 수정시계(10)에서 계수기로의 게이트 하는데 쓰이고, 계수는 발진기의 주파수 변화를 나타내므로써 변위를 측정하고, 또 계수는 마이크로 프로세서(14)에 의해 초기 교정동안에 메모리에 저장된 탐색표(16)와 비교되고, 센서헤드(1)와 연결된, 작동 및 프로세스 장치는 다른 센서들의 접속기와 직접 결합될 수 있는 접속기내에 설치되고, 호스트컴퓨터에 대해 다중 센서의 버스결합을 형성하는 것을 특징으로 한다.

Description

변위 측정장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 센서헤드의 개략도.
제2도는 제1도의 센서헤드를 포함하여 구현된 센서 발명의 개략적인 블록도.
제3도는 제2도의 센서를 포함한 전형적 장치를 도시한 도면이다.

Claims (8)

  1. 측정될 변위에 대응하여 발진기의 주파수를 변화시키는 센서헤드(1)와, 주파수 변화를 측정하는 주파수 측정수단과, 특정한 센서헤드(1)에 대해 저장된 교정계수를 근거하여 측정된 주파수 변화의 변위를 나타내는 디지탈 출력으로 변환시키는 마이크로 프로세서(14)로 구성되고, 이 주파수 측정수단과 마이크로 프로세서(14)가 다른 센서헤드들의 비슷한 접속기와의 접속을 위해 접속기에 설치되고, 그리고 마이크로 프로세서(14)가 각 센서헤드와 대한 유일한 I.D를 포함하고 있어서, 호스트컴퓨터(22)가 각 센서헤드를 식별할 수 있도록 한 것을 특징으로 하는 변위 측정장치.
  2. 제1항에 있어서, 센서헤드가 주파수를 변화시키는 발진기(2)의 코일내를 움직일 수 있는 코어를 포함하는 것을 특징으로 하는 변위 측정장치.
  3. 제2항에 있어서, 코어(4)가 발진기(2)와 엇갈려 연결되어 2개의 코일 사이를 움직일 수 있고, 두 코일 사이의 주파수 변화가 변위 척도를 제공하는 것을 특징으로 하는 측정장치.
  4. 제3항에 있어서, 발진기(2)의 출력과 연결되고, 적어도 발진기의 n사이클을 가지는 시간 후에 발진기와 코일들 사이의 연결을 전환할 수 있게 배치된 제1계수기(8)를 포함한 것을 특징으로 하는 측정장치.
  5. 측정된 변위에 대응하여 발진기의 주파수를 변화시키는 센서헤드와, 주파수 변화를 측정하는 주파수 변화 측정수단과, 특정한 센서헤드에 대해 저장된 교정 계수를 근거로하여 주파수의 변화를 변위를 나타내는 디지탈 출력으로 변환시키는 마이크로 프로세서(14)로 구성되고, 이 센서헤드가 발진기에 엇갈려 연결되어 있는 적어도 2개의 코일 사이를 움직일 수 있는 코어(4)를 갖고 있으며, 두 코일 사이의 주파수 변화가 변위 척도를 제공하며, 제1계수기(8)가 발진기의 출력과 연결되고 적어도 발진기의 n사이클을 가지는 시간후에 발진기와 코일들 사이의 연결을 전환할 수 있게 배채된 것을 특징으로 하는 측정장치.
  6. 제4항 또는 제5항에 있어서, 주파수 변화 측정 수단은 클럭펄스를 세는 제1계수기(8)의 출력에 의해 게이트(gate)되는 제2계수기와, 두 코일 사이의 발진 주파수의 차이에 대응하는 다른 계수를 생성시키는 수단을 갖는 것을 특징으로 하는 측정장치.
  7. 제4항, 제5항 또는 제6항중 어느 한 항에 있어서, 주파수 변화 측정수단은 발진기의 두 주파수에 대응하는 계수를 마이크로 프로세서(14)에 공급하도록 배치된 계수기를 갖고, 이 마이크로 프로세서(14)가 저장된 교정계수와 비교하여 주파수의 차이를 계산 하도록 디자인된 것을 특징으로 하는 변위 측정장치.
  8. 제4항, 제5항 또는 제6항중 어느 한 항에 있어서, 주파수 변화 측정수단은 발진기의 두 주파수에 대응하는 계수를 마이크로 프로세서(14)에 공급하도록 배치된 계수기를 갖고, 이 마이크로 프로세서(14)가 저장된 교정계수와 비교하여 주파수의 비를 계산하도록 디자인된 것을 특징으로 하는 변위 측정장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920024850A 1991-12-20 1992-12-21 변위 측정장치 KR930013677A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB91-27112.2 1991-12-20
GB919127112A GB9127112D0 (en) 1991-12-20 1991-12-20 Smart displacement sensor

Publications (1)

Publication Number Publication Date
KR930013677A true KR930013677A (ko) 1993-07-22

Family

ID=10706628

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920024850A KR930013677A (ko) 1991-12-20 1992-12-21 변위 측정장치

Country Status (8)

Country Link
US (1) US5726567A (ko)
EP (1) EP0549285B1 (ko)
JP (1) JP3349739B2 (ko)
KR (1) KR930013677A (ko)
AT (1) ATE143487T1 (ko)
DE (1) DE69214110T2 (ko)
ES (1) ES2092063T3 (ko)
GB (2) GB9127112D0 (ko)

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KR100928339B1 (ko) * 2007-09-03 2009-11-30 문병균 멀티 스캔을 이용한 변위측정방법 및 변위측정용 신호조절기

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US20080032797A1 (en) * 2006-07-24 2008-02-07 Nds Limited Combining broadcast sporting events and computer-based gaming
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DE102009004688A1 (de) 2009-01-12 2010-07-22 Beb Industrie-Elektronik Ag Vorrichtung zum Feststellen einer Dicke oder Dickenvariation eines flachen Gegenstandes
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Also Published As

Publication number Publication date
DE69214110D1 (de) 1996-10-31
EP0549285B1 (en) 1996-09-25
EP0549285A3 (en) 1993-12-01
GB2262614A (en) 1993-06-23
GB9127112D0 (en) 1992-02-19
JP3349739B2 (ja) 2002-11-25
DE69214110T2 (de) 1997-04-03
US5726567A (en) 1998-03-10
ES2092063T3 (es) 1996-11-16
JPH05248804A (ja) 1993-09-28
GB2262614B (en) 1995-03-15
GB9226456D0 (en) 1993-02-10
EP0549285A2 (en) 1993-06-30
ATE143487T1 (de) 1996-10-15

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