DK0785443T3 - Fremgangsmåde og apparat til løbetidsmåling af et elektrisk, elektromagnetisk eller akustisk signal - Google Patents

Fremgangsmåde og apparat til løbetidsmåling af et elektrisk, elektromagnetisk eller akustisk signal

Info

Publication number
DK0785443T3
DK0785443T3 DK97100013T DK97100013T DK0785443T3 DK 0785443 T3 DK0785443 T3 DK 0785443T3 DK 97100013 T DK97100013 T DK 97100013T DK 97100013 T DK97100013 T DK 97100013T DK 0785443 T3 DK0785443 T3 DK 0785443T3
Authority
DK
Denmark
Prior art keywords
threshold voltage
electromagnetic
acoustic signal
maturity
measuring
Prior art date
Application number
DK97100013T
Other languages
English (en)
Inventor
Nils Kroemer
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of DK0785443T3 publication Critical patent/DK0785443T3/da

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
    • 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
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G01N29/075—Analysing solids by measuring propagation velocity or propagation time of acoustic waves by measuring or comparing phase angle
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/101—Particularities of the measurement of distance
    • 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
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals
    • G01S7/5273—Extracting wanted echo signals using digital techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
DK97100013T 1996-01-26 1997-01-02 Fremgangsmåde og apparat til løbetidsmåling af et elektrisk, elektromagnetisk eller akustisk signal DK0785443T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19602810A DE19602810A1 (de) 1996-01-26 1996-01-26 Verfahren und Einrichtung zur Laufzeitmessung eines elektrischen, elektromagnetischen oder akustischen Signals

Publications (1)

Publication Number Publication Date
DK0785443T3 true DK0785443T3 (da) 2003-03-24

Family

ID=7783771

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97100013T DK0785443T3 (da) 1996-01-26 1997-01-02 Fremgangsmåde og apparat til løbetidsmåling af et elektrisk, elektromagnetisk eller akustisk signal

Country Status (4)

Country Link
EP (1) EP0785443B1 (da)
AT (1) ATE229655T1 (da)
DE (2) DE19602810A1 (da)
DK (1) DK0785443T3 (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6265676B1 (en) * 1997-03-10 2001-07-24 Electronics For Imaging, Inc. Systems and processing algorithms for ultrasound time-of-flight digitizer systems
US6151014A (en) * 1998-02-26 2000-11-21 Pagasus Technologies Ltd. Systems and processing algorithms for ultrasound time-of-flight digitizer systems
JP3616324B2 (ja) * 2000-11-27 2005-02-02 東京計装株式会社 伝播時間差方式による超音波流量計
DE102004027958B4 (de) * 2004-06-08 2007-07-12 M & Fc Holding Llc Verfahren und Vorrichtung zum Messen der Strömungsgeschwindigkeit von Fluiden
ATE532039T1 (de) * 2005-06-10 2011-11-15 Landis & Gyr Gmbh Verfahren zur erfassung einer geometrieänderung eines ultraschalldurchflussmesskanals
DE102005035584B4 (de) * 2005-07-29 2007-06-06 Hydrometer Gmbh Verfahren zur Durchführung von Durchflussmessungen in einem strömenden Fluid
US10473625B2 (en) * 2015-08-12 2019-11-12 Chevron U.S.A. Inc. Detection and monitoring of changes in metallic structures using multimode acoustic signals
DE102016219663B4 (de) 2016-10-11 2018-08-02 Conti Temic Microelectronic Gmbh Verfahren zur Überwachung eines Netzwerks auf Anomalien
CN112154324B (zh) * 2018-04-27 2021-11-30 雪佛龙美国公司 使用多模声学信号来检测、监控和确定金属结构中变化的位置
CN109342997A (zh) * 2018-12-04 2019-02-15 国家电网有限公司 一种基于脉冲能量积累的时差定位方法及装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824464A (en) * 1973-07-16 1974-07-16 Honeywell Inc Pulse detection systems
FR2327553A1 (fr) * 1975-10-10 1977-05-06 Thomson Csf Dispositif de mesure par correlation electronique du retard entre deux signaux temporels et systemes comportant un tel dispositif
DE2607187C3 (de) * 1976-02-23 1986-07-10 Krautkrämer GmbH, 5000 Köln Verfahren zur Messung des zeitlichen Impulsabstandes von zwei elektrischen Impulsen
DE2853170A1 (de) * 1978-12-08 1980-06-19 Deutsch Pruef Messgeraete Verfahren und vorrichtung zur dickenmessung an prueflingen mittels ultraschalles
DE3210436C2 (de) * 1982-03-22 1984-01-05 Nukem Gmbh, 6450 Hanau Verfahren und Vorrichtung zur Bestimmung des zeitlichen Impulsabstandes zweier elektrischer Impulse
DE3446837A1 (de) * 1984-12-21 1986-06-26 Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen Verfahren und vorrichtung zum genauen ermitteln des zeitlichen abstandes zweier elektrischer impulse
DE3905956A1 (de) * 1989-02-25 1990-09-13 Fraunhofer Ges Forschung Vorrichtung zur messung von ultraschallaufzeiten
DD290948A5 (de) * 1989-12-27 1991-06-13 Brennstoffinstitut Freiberg,De Schaltungsanordnung zur bestimmung des anfangszeitpunktes eines ultraschall-empfangssignales
DE59008200D1 (de) * 1990-04-20 1995-02-16 Siemens Ag Elektrische Messeinrichtung für die Laufzeitmessung eines elektrischen Signals.
DE4222643A1 (de) * 1992-07-10 1994-01-13 Bodenseewerk Geraetetech Einrichtung zur Messung von Pulslaufzeiten
EP0642034B1 (en) * 1993-09-06 1999-07-21 Sony Corporation Distance measuring method and apparatus

Also Published As

Publication number Publication date
DE59708910D1 (de) 2003-01-23
DE19602810A1 (de) 1997-07-31
EP0785443A3 (de) 1998-12-02
EP0785443A2 (de) 1997-07-23
EP0785443B1 (de) 2002-12-11
ATE229655T1 (de) 2002-12-15

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