FI911917A - Elektrisk maetningsanordning foer gaongtidsmaetning av en elektrisk signal. - Google Patents

Elektrisk maetningsanordning foer gaongtidsmaetning av en elektrisk signal. Download PDF

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Publication number
FI911917A
FI911917A FI911917A FI911917A FI911917A FI 911917 A FI911917 A FI 911917A FI 911917 A FI911917 A FI 911917A FI 911917 A FI911917 A FI 911917A FI 911917 A FI911917 A FI 911917A
Authority
FI
Finland
Prior art keywords
elektrisk
maetningsanordning
gaongtidsmaetning
foer
signal
Prior art date
Application number
FI911917A
Other languages
English (en)
Other versions
FI911917A0 (fi
Inventor
Manfred Baumgaertner
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
Publication of FI911917A0 publication Critical patent/FI911917A0/fi
Publication of FI911917A publication Critical patent/FI911917A/fi

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
    • 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
    • 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)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
FI911917A 1990-04-20 1991-04-19 Elektrisk maetningsanordning foer gaongtidsmaetning av en elektrisk signal. FI911917A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90107545A EP0452531B1 (de) 1990-04-20 1990-04-20 Elektrische Messeinrichtung für die Laufzeitmessung eines elektrischen Signals

Publications (2)

Publication Number Publication Date
FI911917A0 FI911917A0 (fi) 1991-04-19
FI911917A true FI911917A (fi) 1991-10-21

Family

ID=8203895

Family Applications (1)

Application Number Title Priority Date Filing Date
FI911917A FI911917A (fi) 1990-04-20 1991-04-19 Elektrisk maetningsanordning foer gaongtidsmaetning av en elektrisk signal.

Country Status (6)

Country Link
US (1) US5123286A (fi)
EP (1) EP0452531B1 (fi)
JP (1) JP3022623B2 (fi)
DE (1) DE59008200D1 (fi)
DK (1) DK0452531T3 (fi)
FI (1) FI911917A (fi)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ243294A (en) * 1991-06-25 1995-04-27 Commw Scient Ind Res Org Time of flight of acoustic wave packets through fluid: reduction of higher order acoustic mode effects
NZ243293A (en) * 1991-06-25 1995-03-28 Commw Scient Ind Res Org Fluid flow meter: time of travel of acoustic wave packet through fluid
US5343744A (en) * 1992-03-06 1994-09-06 Tsi Incorporated Ultrasonic anemometer
DE4301341C1 (de) * 1993-01-20 1993-10-21 Honeywell Elac Nautik Gmbh Verfahren und Schaltungsanordnung zum Bestimmen des zeitlichen Anfangs eines Impulssignals
DE4420329C1 (de) * 1994-06-10 1995-10-26 Hydrometer Gmbh Verfahren zur Ultraschall-Messung von Durchflußmengen von strömenden Fluiden
DE19522697A1 (de) * 1995-06-22 1997-01-09 Sick Optik Elektronik Erwin Verfahren und Schaltungsanordnung zur Messung der Strömungsgeschwindigkeit mittels akustischer Laufzeitdifferenzen
DE19530054C2 (de) * 1995-08-16 1999-06-17 Hydrometer Gmbh Verfahren zur Ultraschall-Messung von Durchflußmengen von strömenden Fluiden
US5672974A (en) * 1996-01-18 1997-09-30 Convex Corporation Returned reference compatible, straightaway envelope delay measurement instrument and method
DE19602810A1 (de) * 1996-01-26 1997-07-31 Siemens Ag Verfahren und Einrichtung zur Laufzeitmessung eines elektrischen, elektromagnetischen oder akustischen Signals
DE19611233A1 (de) * 1996-03-21 1997-09-25 Siemens Ag Verfahren zur Laufzeitmessung eines elektrischen, elektromagnetischen oder akustischen Signals
DE19636945A1 (de) * 1996-09-11 1998-03-12 Siemens Ag Verfahren und Einrichtung zur Messung der Laufzeitdifferenz eines elektrischen, elektromagnetischen oder akustischen Signals
US5814737A (en) * 1996-10-04 1998-09-29 Dieterich Technology Holding Corp. Apparatus and method of detecting an ultrasonic signal
US6124724A (en) * 1998-05-27 2000-09-26 Xilinx, Inc. Method of increasing AC testing accuracy through linear extrapolation
SE9802762D0 (sv) * 1998-08-19 1998-08-19 Siemens Elema Ab Zero crossing detector and method of determining a zero crossing point
FR2790554B1 (fr) * 1999-03-03 2001-06-29 Schlumberger Ind Sa Methode et dispositif de mesure du temps de propagation d'un signal, en particulier d'un signal ultrasonore
AUPQ480199A0 (en) 1999-12-22 2000-02-03 AGL Consultancy Pty. Limited Timed window ultrasonic gas meter with nose cone
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
US6892149B2 (en) * 2001-05-31 2005-05-10 Intel Corporation Identifying data loss in a transmission system
DE10142538A1 (de) * 2001-08-30 2004-02-12 Advanced Acoustix Gmbh I.Ins. Verfahren zur Laufzeitmessung mittels Kreuzkorrelationsfunktion und Kurvenanpassung
DK174756B1 (da) * 2002-06-30 2003-10-20 Siemens Flow Instr As Fremgangsmåde til måling af flow ved hjælp af en ultralydsflowmåler
AU2003280620A1 (en) * 2002-11-26 2004-06-18 Matsushita Electric Industrial Co., Ltd. Ultrasonic flowmeter and ultrasonic flow rate measuring method
ES2600525T3 (es) * 2003-04-21 2017-02-09 Teijin Pharma Limited Sistema de concentración de oxígeno para generar gas enriquecido en oxígeno
WO2004097345A1 (ja) * 2003-04-30 2004-11-11 Avance Techne Accent Corp. 衝撃流量計
DE10338940B3 (de) * 2003-08-22 2005-02-10 Fresenius Medical Care Deutschland Gmbh Verfahren zum Messen einer Signallaufzeit in Blut und Vorrichtung zur Anwendung des Verfahrens
JP4283645B2 (ja) * 2003-11-19 2009-06-24 パイオニア株式会社 信号遅延時間測定装置及びそのためのコンピュータプログラム
DE10361464A1 (de) 2003-12-23 2005-07-28 Endress + Hauser Flowtec Ag, Reinach Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massendurchflusses eines Messmediums
EP1657531A4 (en) * 2004-06-01 2009-08-12 Avance Techne Accent Corp FLUID FLOW MEASURING METHOD AND FLOW RATE MEASURING DEVICE
JP4588508B2 (ja) * 2005-03-28 2010-12-01 帝人ファーマ株式会社 超音波伝播時間測定方法を用いた気体流量及び気体濃度の測定装置
DE102008019991B4 (de) 2008-04-21 2015-10-22 Mib Gmbh Messtechnik Und Industrieberatung Konzentrationsbestimmungsverfahren und Messgerät
WO2017134828A1 (ja) * 2016-02-05 2017-08-10 富士電機株式会社 測定装置、測定方法、及び測定プログラム
CN110361360B (zh) * 2019-07-17 2020-07-10 华中科技大学 用于气体检测的可调谐激光器半波扫描控制方法及系统

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Publication number Priority date Publication date Assignee Title
JPS5827449B2 (ja) * 1978-08-09 1983-06-09 富士電機株式会社 超音波伝搬時間検出回路装置
DE2853170A1 (de) * 1978-12-08 1980-06-19 Deutsch Pruef Messgeraete Verfahren und vorrichtung zur dickenmessung an prueflingen mittels ultraschalles
US4372163A (en) * 1981-02-03 1983-02-08 Rockwell International Corporation Acoustic measurement of near surface property gradients
JPS58120119A (ja) * 1982-01-13 1983-07-16 Kansai Electric Power Co Inc:The 超音波流量計
JPS58167918A (ja) * 1982-03-29 1983-10-04 Toshiba Corp 超音波流速測定装置
WO1983003478A1 (en) * 1982-03-30 1983-10-13 Martin Reuter Method and installation for determining a relative distance in a cylinder and piston device
US4546441A (en) * 1982-07-22 1985-10-08 John Burch Method and apparatus for time based measurement of impedance
DE3242284A1 (de) * 1982-11-16 1984-05-17 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und anordnung zur laufzeitbestimmung eines ultraschallimpulses
US4603589A (en) * 1983-12-27 1986-08-05 Kabushiki Kaisha Toshiba Ultrasonic flowmeter
FR2559587B1 (fr) * 1984-02-15 1986-07-25 Trt Telecom Radio Electr Dispositif pour determiner l'instant du debut du front avant d'une impulsion haute frequence
SE456279B (sv) * 1986-09-16 1988-09-19 Bost & Co Ab Sett och anordning for att tidsbestemma en akustisk puls

Also Published As

Publication number Publication date
US5123286A (en) 1992-06-23
DK0452531T3 (da) 1995-06-19
EP0452531A1 (de) 1991-10-23
JP3022623B2 (ja) 2000-03-21
DE59008200D1 (de) 1995-02-16
JPH04230882A (ja) 1992-08-19
FI911917A0 (fi) 1991-04-19
EP0452531B1 (de) 1995-01-04

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