JPS57190281A - Ultrasonic wave measuring apparatus - Google Patents

Ultrasonic wave measuring apparatus

Info

Publication number
JPS57190281A
JPS57190281A JP56075426A JP7542681A JPS57190281A JP S57190281 A JPS57190281 A JP S57190281A JP 56075426 A JP56075426 A JP 56075426A JP 7542681 A JP7542681 A JP 7542681A JP S57190281 A JPS57190281 A JP S57190281A
Authority
JP
Japan
Prior art keywords
ultrasonic waves
ultrasonic
ultrasonic wave
bubbles
exceed
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
JP56075426A
Other languages
Japanese (ja)
Inventor
Chuji Akiyama
Masayuki Takahashi
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.)
Yokogawa Electric Corp
Original Assignee
Hokushin Electric Works Ltd
Yokogawa Hokushin Electric Corp
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 Hokushin Electric Works Ltd, Yokogawa Hokushin Electric Corp filed Critical Hokushin Electric Works Ltd
Priority to JP56075426A priority Critical patent/JPS57190281A/en
Publication of JPS57190281A publication Critical patent/JPS57190281A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating

Abstract

PURPOSE:To achieve measurement of ultrasonic waves without errors free from effect on the damping of ultrasonic waves due to bubbles by correcting time until ultrasonic waves are received counting the frequency at which signals of ultrasonic waves exceed a specified level. CONSTITUTION:The frequency N at which ultrasonic waves received by an ultrasonic wave receiver 1 exceed a set level is counted with a counting circuit 4 through a comparator 3. A computing circuit 5 determines a correction value H based on the table to correct measured time between the transmission of the ultrasonic waves and the receiving thereof. This enables the measurement of ultrasonic waves without errors free from effect of possible damping when ultrasonic waves damped due to bubbles or the like. In the table, DELTAT represents time corresponding to one wave length of the ultrasonic wave signals.
JP56075426A 1981-05-19 1981-05-19 Ultrasonic wave measuring apparatus Pending JPS57190281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075426A JPS57190281A (en) 1981-05-19 1981-05-19 Ultrasonic wave measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075426A JPS57190281A (en) 1981-05-19 1981-05-19 Ultrasonic wave measuring apparatus

Publications (1)

Publication Number Publication Date
JPS57190281A true JPS57190281A (en) 1982-11-22

Family

ID=13575864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075426A Pending JPS57190281A (en) 1981-05-19 1981-05-19 Ultrasonic wave measuring apparatus

Country Status (1)

Country Link
JP (1) JPS57190281A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609562A (en) * 1983-06-28 1985-01-18 Mitsubishi Electric Corp Device for measuring solidification thickness of billet
JPS6031009A (en) * 1983-07-29 1985-02-16 Nippon Steel Corp Apparatus for measuring thickness of solidified cast piece
JPS62169050A (en) * 1986-01-22 1987-07-25 Mitsubishi Electric Corp Ultrasonic flaw detector
US5553505A (en) * 1991-06-25 1996-09-10 Commonwealth Scientific And Industrial Research Organization Electronic fluid flow meter
JP2002286701A (en) * 2001-03-22 2002-10-03 Kyoto Electron Mfg Co Ltd Measuring value correcting method in ultrasonic sound speed measurement and ultrasonic measuring device
US6606916B2 (en) 1999-12-22 2003-08-19 Commonwealth Scientific And Research Organisation Timed window ultrasonic gas meter with nose cone
WO2004094960A2 (en) * 2003-04-21 2004-11-04 Teijin Pharma Limited Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
JP2008014770A (en) * 2006-07-05 2008-01-24 Jfe Advantech Co Ltd Physical quantity measuring apparatus and ultrasonic apparatus for measuring quantity of flow

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50114271A (en) * 1974-02-15 1975-09-08
JPS55103422A (en) * 1979-01-31 1980-08-07 Yokogawa Hokushin Electric Corp Ultrasonic measuring device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50114271A (en) * 1974-02-15 1975-09-08
JPS55103422A (en) * 1979-01-31 1980-08-07 Yokogawa Hokushin Electric Corp Ultrasonic measuring device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609562A (en) * 1983-06-28 1985-01-18 Mitsubishi Electric Corp Device for measuring solidification thickness of billet
JPH0464788B2 (en) * 1983-06-28 1992-10-16 Mitsubishi Electric Corp
JPS6031009A (en) * 1983-07-29 1985-02-16 Nippon Steel Corp Apparatus for measuring thickness of solidified cast piece
JPH0236162B2 (en) * 1983-07-29 1990-08-15 Shinnippon Seitetsu Kk
JPS62169050A (en) * 1986-01-22 1987-07-25 Mitsubishi Electric Corp Ultrasonic flaw detector
US5553505A (en) * 1991-06-25 1996-09-10 Commonwealth Scientific And Industrial Research Organization Electronic fluid flow meter
US6606916B2 (en) 1999-12-22 2003-08-19 Commonwealth Scientific And Research Organisation Timed window ultrasonic gas meter with nose cone
JP2002286701A (en) * 2001-03-22 2002-10-03 Kyoto Electron Mfg Co Ltd Measuring value correcting method in ultrasonic sound speed measurement and ultrasonic measuring device
WO2004094960A2 (en) * 2003-04-21 2004-11-04 Teijin Pharma Limited Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
WO2004094960A3 (en) * 2003-04-21 2005-06-16 Teijin Pharma Ltd Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
US7213468B2 (en) 2003-04-21 2007-05-08 Teijin Pharma Limited Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
JP2008014770A (en) * 2006-07-05 2008-01-24 Jfe Advantech Co Ltd Physical quantity measuring apparatus and ultrasonic apparatus for measuring quantity of flow

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