DK358085D0 - PROCEDURE FOR MEASURING THE FLOW SPEED OF VEHICLE V ACCORDING TO THE PRINCIPLE OF PHASE RE-REGULATION AND DIFFERENCE FREQUENCY USE - Google Patents

PROCEDURE FOR MEASURING THE FLOW SPEED OF VEHICLE V ACCORDING TO THE PRINCIPLE OF PHASE RE-REGULATION AND DIFFERENCE FREQUENCY USE

Info

Publication number
DK358085D0
DK358085D0 DK358085A DK358085A DK358085D0 DK 358085 D0 DK358085 D0 DK 358085D0 DK 358085 A DK358085 A DK 358085A DK 358085 A DK358085 A DK 358085A DK 358085 D0 DK358085 D0 DK 358085D0
Authority
DK
Denmark
Prior art keywords
difference frequency
regulation
measuring
procedure
principle
Prior art date
Application number
DK358085A
Other languages
Danish (da)
Other versions
DK168248B1 (en
DK358085A (en
Inventor
Alexander Von Jena
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 DK358085D0 publication Critical patent/DK358085D0/en
Publication of DK358085A publication Critical patent/DK358085A/en
Application granted granted Critical
Publication of DK168248B1 publication Critical patent/DK168248B1/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
    • G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
    • G01P5/247—Sing-around-systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Before the actual measurements with difference frequency evaluation are carried out in the forward and reverse direction, particularly after the measuring instrument is switched on (again), a specially designed setting process is carried out which provides separate calibration values for the forward and for the reverse direction which ensure unambiguousness of the subsequent flow measurement value determination. <IMAGE>
DK358085A 1984-08-07 1985-08-06 Method for measuring the flow rate of a fluid according to the principle of phase re-regulation and differential frequency utilization DK168248B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3429099 1984-08-07
DE19843429099 DE3429099A1 (en) 1984-08-07 1984-08-07 METHOD FOR MEASURING THE FLOW RATE V OF A FLUID AFTER THE PRINCIPLE OF THE PHASE READING AND DIFFERENTIAL FREQUENCY EVALUATION

Publications (3)

Publication Number Publication Date
DK358085D0 true DK358085D0 (en) 1985-08-06
DK358085A DK358085A (en) 1986-02-08
DK168248B1 DK168248B1 (en) 1994-02-28

Family

ID=6242546

Family Applications (1)

Application Number Title Priority Date Filing Date
DK358085A DK168248B1 (en) 1984-08-07 1985-08-06 Method for measuring the flow rate of a fluid according to the principle of phase re-regulation and differential frequency utilization

Country Status (4)

Country Link
EP (1) EP0171067B1 (en)
AT (1) ATE59905T1 (en)
DE (2) DE3429099A1 (en)
DK (1) DK168248B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0521182T3 (en) * 1991-07-04 1993-05-24 Siemens Ag A method for measuring the flow rate of an ultrasonic fluid
DE4400448C1 (en) * 1994-01-10 1995-07-13 Siemens Ag Control and evaluation arrangement for two ultrasonic transducers that can be operated as transmitters and receivers
DK200101581A (en) 2001-10-26 2003-04-27 Danfoss As Transceiver circuit for ultrasonic flow meter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751979A (en) * 1971-11-17 1973-08-14 Raytheon Co Speed measurement system
USRE28929E (en) * 1972-07-03 1976-08-17 E. I. Du Pont De Nemours & Company Ultrasonic fluid speed of sound and flow meter apparatus and method
DE3020282C2 (en) * 1980-05-28 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Ultrasonic flow meter
DE3029140C2 (en) * 1980-07-31 1982-05-19 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Calibration device for acoustic flow rate measuring devices
DE3334819A1 (en) * 1983-09-26 1985-04-04 Siemens AG, 1000 Berlin und 8000 München METHOD FOR MEASURING FLOW RATES WITH ULTRASONIC

Also Published As

Publication number Publication date
EP0171067A2 (en) 1986-02-12
EP0171067A3 (en) 1989-03-29
EP0171067B1 (en) 1991-01-09
DK168248B1 (en) 1994-02-28
DK358085A (en) 1986-02-08
DE3429099A1 (en) 1986-02-20
DE3581241D1 (en) 1991-02-14
ATE59905T1 (en) 1991-01-15

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed