DK0905487T3 - Through Strömning Meter - Google Patents

Through Strömning Meter

Info

Publication number
DK0905487T3
DK0905487T3 DK98114236T DK98114236T DK0905487T3 DK 0905487 T3 DK0905487 T3 DK 0905487T3 DK 98114236 T DK98114236 T DK 98114236T DK 98114236 T DK98114236 T DK 98114236T DK 0905487 T3 DK0905487 T3 DK 0905487T3
Authority
DK
Denmark
Prior art keywords
reflector
strömning
meter
measuring pipe
flow medium
Prior art date
Application number
DK98114236T
Other languages
Danish (da)
Inventor
Thomas Dr Vontz
Original Assignee
Landis & Gyr Gmbh
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 Landis & Gyr Gmbh filed Critical Landis & Gyr Gmbh
Application granted granted Critical
Publication of DK0905487T3 publication Critical patent/DK0905487T3/en

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
    • G01F1/662—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Abstract

The flowmeter has a measuring pipe for the flow medium and at least one ultrasonic transmission/reception device, with a reflector within the measuring pipe for the ultrasonic waves directed through the flow medium. The formation of harmonic waves at the reflector surface (10) is effected by using an incidence angle relative to the surface normal which is greater than the Rayleigh angle and/or by using a reflector with material characteristics providing a high Rayleigh velocity. The reflector may be made of ceramics, e.g. aluminium oxide.
DK98114236T 1997-09-30 1998-07-28 Through Strömning Meter DK0905487T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997143340 DE19743340C3 (en) 1997-09-30 1997-09-30 flowmeter

Publications (1)

Publication Number Publication Date
DK0905487T3 true DK0905487T3 (en) 2007-07-02

Family

ID=7844247

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98114236T DK0905487T3 (en) 1997-09-30 1998-07-28 Through Strömning Meter

Country Status (4)

Country Link
EP (1) EP0905487B1 (en)
AT (1) ATE356340T1 (en)
DE (2) DE19743340C3 (en)
DK (1) DK0905487T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004047786A1 (en) 2004-10-01 2006-04-06 Robert Bosch Gmbh Correction of the effect of pulses in a gas flow, especially the intake flow into a motor vehicle multi-cylinder combustion engine, by multiple filtering of input signals prior to adding in an adder circuit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103551A (en) * 1977-01-31 1978-08-01 Panametrics, Inc. Ultrasonic measuring system for differing flow conditions
US4754650A (en) * 1983-07-29 1988-07-05 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters
EP0392294A1 (en) * 1989-04-13 1990-10-17 Siemens Aktiengesellschaft Fluid flowmeter for measuring ultrasound transit times
DE4103551A1 (en) * 1991-02-06 1992-08-13 Henkel Kgaa FLOWABLE PEARL CONCENTRATE
US5437194A (en) * 1991-03-18 1995-08-01 Panametrics, Inc. Ultrasonic transducer system with temporal crosstalk isolation
DE4336369C1 (en) * 1993-10-25 1995-06-22 Siemens Ag Flow measuring device
DE4336368C2 (en) * 1993-10-25 1995-08-03 Siemens Ag Flow measuring device
DE4336370C1 (en) * 1993-10-25 1995-02-02 Siemens Ag Device for flow measurement
DE4437588A1 (en) * 1994-10-20 1996-04-25 Siemens Ag Ultrasonic flow meter
DE59409730D1 (en) * 1994-12-02 2001-05-17 Siemens Ag Ultrasonic flow measuring arrangement
WO1997011337A1 (en) * 1995-09-21 1997-03-27 Iskraemeco, Merjenje In Upravljanje Energije, D.D. Cell for ultrasonically measuring the rate of fluid flow

Also Published As

Publication number Publication date
DE19743340C3 (en) 2003-09-25
DE19743340C2 (en) 1999-11-11
EP0905487B1 (en) 2007-03-07
EP0905487A2 (en) 1999-03-31
DE19743340A1 (en) 1999-04-22
EP0905487A3 (en) 1999-04-14
DE59813933D1 (en) 2007-04-19
ATE356340T1 (en) 2007-03-15

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