GB2128740A - Analog ultrasonic flowmeter - Google Patents

Analog ultrasonic flowmeter

Info

Publication number
GB2128740A
GB2128740A GB08331461A GB8331461A GB2128740A GB 2128740 A GB2128740 A GB 2128740A GB 08331461 A GB08331461 A GB 08331461A GB 8331461 A GB8331461 A GB 8331461A GB 2128740 A GB2128740 A GB 2128740A
Authority
GB
United Kingdom
Prior art keywords
subsystem
principal components
acoustic
ultrasonic flowmeter
analog ultrasonic
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB08331461A
Other versions
GB8331461D0 (en
GB2128740B (en
Inventor
Alvin E Brown
Rodney C Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bestobell Sparling Ltd
Original Assignee
Bestobell Sparling Ltd
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 Bestobell Sparling Ltd filed Critical Bestobell Sparling Ltd
Publication of GB8331461D0 publication Critical patent/GB8331461D0/en
Publication of GB2128740A publication Critical patent/GB2128740A/en
Application granted granted Critical
Publication of GB2128740B publication Critical patent/GB2128740B/en
Expired legal-status Critical Current

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

Abstract

An improved acoustic-type flow meter for accurately measuring the velocity of heterogeneous fluids. The meter operates as a time-multiplexed phase-locked loop and may be divided into a number of sybsystems including a subsystem (12) for acoustic-wave transmission, a subsystem (14) for error detection and summation, and a subsystem (16) for reference-signal generation. The principal components of subsystem (12) are a pair of acoustic transducers (20, 22), a transmitter (24), a protection network (26), an agc circuit (30), and a signal detector (32). The principal components of subsystem (14) are a phase detector (100), a decoder (102), three integrators (104, 106, 108), and a summing amplifier (110). The principal components of subsystem (16) are a ramp generator (150), a multiplexer (152), a multiplier (154), and a comparator (156).
GB08331461A 1982-04-21 1982-04-21 Analog ultrasonic flowmeter Expired GB2128740B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1982/000502 WO1983003897A1 (en) 1982-04-21 1982-04-21 Analog ultrasonic flowmeter

Publications (3)

Publication Number Publication Date
GB8331461D0 GB8331461D0 (en) 1984-01-04
GB2128740A true GB2128740A (en) 1984-05-02
GB2128740B GB2128740B (en) 1985-05-30

Family

ID=22167947

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08331461A Expired GB2128740B (en) 1982-04-21 1982-04-21 Analog ultrasonic flowmeter

Country Status (3)

Country Link
EP (1) EP0105875A1 (en)
GB (1) GB2128740B (en)
WO (1) WO1983003897A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146122A (en) * 1983-07-29 1985-04-11 Panametrics Measuring fluid flow parameters
US4754650A (en) * 1983-07-29 1988-07-05 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5650571A (en) * 1995-03-13 1997-07-22 Freud; Paul J. Low power signal processing and measurement apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894431A (en) * 1972-04-04 1975-07-15 Atomic Energy Authority Uk Apparatus for indicating fluid flow velocity
US3981191A (en) * 1975-07-05 1976-09-21 Danfoss A/S Method and apparatus for the ultrasonic measurement of the flow velocity of fluent media
US4022058A (en) * 1975-08-07 1977-05-10 Brown Alvin E Apparatus for determining the arrival time of alternating signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146122A (en) * 1983-07-29 1985-04-11 Panametrics Measuring fluid flow parameters
US4754650A (en) * 1983-07-29 1988-07-05 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters

Also Published As

Publication number Publication date
EP0105875A1 (en) 1984-04-25
WO1983003897A1 (en) 1983-11-10
GB8331461D0 (en) 1984-01-04
GB2128740B (en) 1985-05-30

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010421