JPH0522163B2 - - Google Patents

Info

Publication number
JPH0522163B2
JPH0522163B2 JP56118412A JP11841281A JPH0522163B2 JP H0522163 B2 JPH0522163 B2 JP H0522163B2 JP 56118412 A JP56118412 A JP 56118412A JP 11841281 A JP11841281 A JP 11841281A JP H0522163 B2 JPH0522163 B2 JP H0522163B2
Authority
JP
Japan
Prior art keywords
capacitance
capacitor
counter
measuring
circuit
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.)
Expired - Lifetime
Application number
JP56118412A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5821104A (ja
Inventor
Takeshi Yasuhara
Eiichi Nabeta
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP56118412A priority Critical patent/JPS5821104A/ja
Priority to US06/402,377 priority patent/US4531193A/en
Priority to CA000408285A priority patent/CA1220835A/en
Priority to AU86518/82A priority patent/AU549860B2/en
Priority to BR8204472A priority patent/BR8204472A/pt
Priority to DE8282106917T priority patent/DE3274495D1/de
Priority to EP82106917A priority patent/EP0071912B1/en
Priority to EP84114777A priority patent/EP0159401B1/en
Priority to DE8484114777T priority patent/DE3279510D1/de
Priority to DE19823229010 priority patent/DE3229010A1/de
Publication of JPS5821104A publication Critical patent/JPS5821104A/ja
Publication of JPH0522163B2 publication Critical patent/JPH0522163B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
    • 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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/248—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 characteristics of pulses or pulse trains; generating pulses or pulse trains by varying pulse repetition frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/252—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with conversion of voltage or current into frequency and measuring of this frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
JP56118412A 1981-07-30 1981-07-30 変位測定装置 Granted JPS5821104A (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP56118412A JPS5821104A (ja) 1981-07-30 1981-07-30 変位測定装置
US06/402,377 US4531193A (en) 1981-07-30 1982-07-27 Measurement apparatus
CA000408285A CA1220835A (en) 1981-07-30 1982-07-28 Measurement apparatus
AU86518/82A AU549860B2 (en) 1981-07-30 1982-07-28 Measurement apparatus
BR8204472A BR8204472A (pt) 1981-07-30 1982-07-29 Aparelho para medir uma quantidade fisica e fornecer dados de medicao correspondentes
DE8282106917T DE3274495D1 (en) 1981-07-30 1982-07-30 Measurement apparatus
EP82106917A EP0071912B1 (en) 1981-07-30 1982-07-30 Measurement apparatus
EP84114777A EP0159401B1 (en) 1981-07-30 1982-07-30 Measurement apparatus
DE8484114777T DE3279510D1 (en) 1981-07-30 1982-07-30 Measurement apparatus
DE19823229010 DE3229010A1 (de) 1981-07-30 1982-07-30 Digitale messeinrichtung fuer eine physikalische groesse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56118412A JPS5821104A (ja) 1981-07-30 1981-07-30 変位測定装置

Publications (2)

Publication Number Publication Date
JPS5821104A JPS5821104A (ja) 1983-02-07
JPH0522163B2 true JPH0522163B2 (en]) 1993-03-26

Family

ID=14736000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56118412A Granted JPS5821104A (ja) 1981-07-30 1981-07-30 変位測定装置

Country Status (1)

Country Link
JP (1) JPS5821104A (en])

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218880B1 (en) * 1985-09-09 1990-06-06 Nippondenso Co., Ltd. Switch device for starter of internal combustion engine
JP2004264272A (ja) * 2003-02-28 2004-09-24 Oht Inc 導電体検査装置及び導電体検査方法
JP2004264273A (ja) * 2003-02-28 2004-09-24 Oht Inc 導体位置検査装置及び導体位置検査方法
JP5086113B2 (ja) * 2008-01-24 2012-11-28 株式会社フジクラ 静電容量型センサ
GB2479156B (en) * 2010-03-30 2012-11-21 Univ Newcastle Apparatus and method for voltage sensing
WO2016009783A1 (ja) * 2014-07-16 2016-01-21 日立アロカメディカル株式会社 超音波探触子、その性能評価方法及び超音波診断装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2148775B2 (de) * 1971-09-30 1979-03-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Messeinrichtung mit kapazitivem abgriff
JPS5840125B2 (ja) * 1974-11-25 1983-09-03 株式会社島津製作所 セイデンヨウリヨウ − チヨクリユウデンアツヘンカンソウチ

Also Published As

Publication number Publication date
JPS5821104A (ja) 1983-02-07

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