DK0452531T3 - Fremgangsmåde til løbstidsmåling af et elektrisk signal - Google Patents
Fremgangsmåde til løbstidsmåling af et elektrisk signalInfo
- Publication number
- DK0452531T3 DK0452531T3 DK90107545.7T DK90107545T DK0452531T3 DK 0452531 T3 DK0452531 T3 DK 0452531T3 DK 90107545 T DK90107545 T DK 90107545T DK 0452531 T3 DK0452531 T3 DK 0452531T3
- Authority
- DK
- Denmark
- Prior art keywords
- electrical signal
- time measurement
- running time
- running
- measurement
- Prior art date
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)
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 (1)
Publication Number | Publication Date |
---|---|
DK0452531T3 true DK0452531T3 (da) | 1995-06-19 |
Family
ID=8203895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK90107545.7T DK0452531T3 (da) | 1990-04-20 | 1990-04-20 | Fremgangsmåde til løbstidsmåling af et elektrisk signal |
Country Status (6)
Country | Link |
---|---|
US (1) | US5123286A (da) |
EP (1) | EP0452531B1 (da) |
JP (1) | JP3022623B2 (da) |
DE (1) | DE59008200D1 (da) |
DK (1) | DK0452531T3 (da) |
FI (1) | FI911917A (da) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
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 |
CN100354609C (zh) * | 2002-11-26 | 2007-12-12 | 松下电器产业株式会社 | 超声波流量计及利用超声波的流量计测方法 |
CA2520563C (en) * | 2003-04-21 | 2013-03-12 | Teijin Pharma Limited | Ultrasonic apparatus and method for measuring the concentration and flow rate of gas |
JPWO2004097345A1 (ja) * | 2003-04-30 | 2006-07-13 | 株式会社エーティーエー | 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 |
WO2005119182A1 (ja) * | 2004-06-01 | 2005-12-15 | Avance Techne Accent Corp. | 流体の流量測定方法及び流量測定装置 |
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 |
Family Cites Families (11)
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 |
DE3276775D1 (en) * | 1982-03-30 | 1987-08-20 | Martin Reuter | 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 |
-
1990
- 1990-04-20 DK DK90107545.7T patent/DK0452531T3/da active
- 1990-04-20 DE DE59008200T patent/DE59008200D1/de not_active Expired - Fee Related
- 1990-04-20 EP EP90107545A patent/EP0452531B1/de not_active Expired - Lifetime
-
1991
- 1991-04-17 JP JP3114072A patent/JP3022623B2/ja not_active Expired - Fee Related
- 1991-04-19 FI FI911917A patent/FI911917A/fi unknown
- 1991-04-19 US US07/687,984 patent/US5123286A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0452531B1 (de) | 1995-01-04 |
US5123286A (en) | 1992-06-23 |
FI911917A (fi) | 1991-10-21 |
JP3022623B2 (ja) | 2000-03-21 |
DE59008200D1 (de) | 1995-02-16 |
JPH04230882A (ja) | 1992-08-19 |
EP0452531A1 (de) | 1991-10-23 |
FI911917A0 (fi) | 1991-04-19 |
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