JPH0512760B2 - - Google Patents

Info

Publication number
JPH0512760B2
JPH0512760B2 JP60106227A JP10622785A JPH0512760B2 JP H0512760 B2 JPH0512760 B2 JP H0512760B2 JP 60106227 A JP60106227 A JP 60106227A JP 10622785 A JP10622785 A JP 10622785A JP H0512760 B2 JPH0512760 B2 JP H0512760B2
Authority
JP
Japan
Prior art keywords
pulse
optical
light
amplifier
duty cycle
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
JP60106227A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60256014A (ja
Inventor
Rii Tomupuson Uiriamu
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.)
Elsag International BV
Original Assignee
Elsag International BV
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 Elsag International BV filed Critical Elsag International BV
Publication of JPS60256014A publication Critical patent/JPS60256014A/ja
Publication of JPH0512760B2 publication Critical patent/JPH0512760B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35338—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
    • G01D5/35341—Sensor working in transmission
    • G01D5/35345—Sensor working in transmission using Amplitude variations to detect the measured quantity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Amplifiers (AREA)
  • Optical Transform (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP60106227A 1984-05-21 1985-05-20 光センサ装置 Granted JPS60256014A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US612284 1984-05-21
US06/612,284 US4628197A (en) 1984-05-21 1984-05-21 Electronics for fiber optic vortex shedding flow meter

Publications (2)

Publication Number Publication Date
JPS60256014A JPS60256014A (ja) 1985-12-17
JPH0512760B2 true JPH0512760B2 (en]) 1993-02-18

Family

ID=24452516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60106227A Granted JPS60256014A (ja) 1984-05-21 1985-05-20 光センサ装置

Country Status (13)

Country Link
US (1) US4628197A (en])
EP (1) EP0165697B1 (en])
JP (1) JPS60256014A (en])
KR (1) KR900004882B1 (en])
AU (1) AU572294B2 (en])
BR (1) BR8501765A (en])
CA (1) CA1227356A (en])
DE (1) DE3566452D1 (en])
ES (1) ES8609702A1 (en])
HK (1) HK77189A (en])
IN (1) IN162597B (en])
MX (1) MX162204A (en])
SG (1) SG46889G (en])

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4656353A (en) * 1986-01-21 1987-04-07 The Babcock & Wilcox Company Variable pulse rate led electronics for a fiber optic vortex shedding flowmeter
US4742574A (en) * 1986-02-03 1988-05-03 The Babcock & Wilcox Company Two-wire 4-20 mA electronics for a fiber optic vortex shedding flowmeter
GB8713699D0 (en) * 1987-06-11 1987-07-15 British Telecomm Optical receiver circuit
US4958070A (en) * 1988-11-07 1990-09-18 The Babcock & Wilcox Company Digital electronics for controlling a fiber optic shedding flowmeter
GB2238380A (en) * 1989-11-23 1991-05-29 Hughes Microelectronics Ltd Vortex shedding flowmeter
CH687794A5 (de) * 1994-04-07 1997-02-14 Landis & Gyr Tech Innovat Schaltungsanordnung zur Uebertragung von Impulsen.
DE19638912A1 (de) * 1996-09-23 1998-03-26 Teves Gmbh Alfred Drehwinkelsensor mit CCD-Zeile und periodisch angesteuerter Lichtquelle
US6483104B1 (en) 1996-09-23 2002-11-19 Valeo Schalter Und Sensoren Gmbh Rotational angle sensor using a CCD line with enhanced measuring precision
JP2018084462A (ja) * 2016-11-22 2018-05-31 株式会社ミツトヨ エンコーダ及び信号処理回路
CN109294901A (zh) * 2018-11-01 2019-02-01 福建省博凯科技有限公司 一段式热对流pcr仪及控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011754A (en) * 1976-06-07 1977-03-15 International Standard Electric Corporation Flowmeter
JPS5698613A (en) * 1980-01-11 1981-08-08 Nissan Motor Co Ltd Fuel control device
JPS6027367B2 (ja) * 1980-10-28 1985-06-28 横河電機株式会社 光ファイバ流量計
GB2093997B (en) * 1981-03-03 1984-09-12 Marconi Co Ltd Flowmeter
SE426345B (sv) * 1981-05-18 1982-12-27 Asea Ab Fiberoptiskt metdon for metning av fysikaliska och/eller kemiska storheter, baserat pa sensormaterial med en olinjer ljus in/ljus ut karakteristik
JPS603423U (ja) * 1983-06-20 1985-01-11 トキコ株式会社 流速・流量検出装置
US4552026A (en) * 1984-10-22 1985-11-12 The Babcock & Wilcox Company Sensor for a vortex shedding flowmeter
DE3534273A1 (de) * 1985-09-26 1987-04-02 Basf Ag Verfahren zur herstellung von vinylamin-einheiten enthaltenden wasserloeslichen copolymerisaten und deren verwendung als nass- und trockenverfestigungsmittel fuer papier

Also Published As

Publication number Publication date
DE3566452D1 (en) 1988-12-29
EP0165697A1 (en) 1985-12-27
JPS60256014A (ja) 1985-12-17
ES8609702A1 (es) 1986-09-01
MX162204A (es) 1991-04-08
SG46889G (en) 1989-12-22
IN162597B (en]) 1988-06-18
US4628197A (en) 1986-12-09
CA1227356A (en) 1987-09-29
ES541172A0 (es) 1986-09-01
KR850008412A (ko) 1985-12-16
AU4257085A (en) 1986-11-27
KR900004882B1 (ko) 1990-07-09
BR8501765A (pt) 1986-06-17
HK77189A (en) 1989-10-06
EP0165697B1 (en) 1988-11-23
AU572294B2 (en) 1988-05-05

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