GB1127116A - Ultrasonic flowmeter - Google Patents

Ultrasonic flowmeter

Info

Publication number
GB1127116A
GB1127116A GB1354366A GB1354366A GB1127116A GB 1127116 A GB1127116 A GB 1127116A GB 1354366 A GB1354366 A GB 1354366A GB 1354366 A GB1354366 A GB 1354366A GB 1127116 A GB1127116 A GB 1127116A
Authority
GB
United Kingdom
Prior art keywords
transducer
fluid
flow velocity
ambient pressure
ultrasonic flowmeter
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.)
Expired
Application number
GB1354366A
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.)
Beckman Coulter Inc
Original Assignee
Beckman Instruments Inc
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
Priority claimed from US467554A external-priority patent/US3402604A/en
Application filed by Beckman Instruments Inc filed Critical Beckman Instruments Inc
Publication of GB1127116A publication Critical patent/GB1127116A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • 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
    • G01F1/663—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 by measuring Doppler frequency shift
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • General Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Acoustics & Sound (AREA)
  • Hematology (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Measuring Volume Flow (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

1,127,116. Measuring pressure electrically. BECKMAN INSTRUMENTS Inc. March 28, 1966 [June 28, 1965 (2)], No. 13543/66. Heading G1N. [Also in Divisions A5 and H4] A single transducer is used to provide independent measurements of ambient pressure and flow velocity of a fluid. In the Fig. 3 embodiment a barium titanate transducer 30 in the fluid is coupled through R. F. chokes 150, 151 (which block ultrasonic signals used in determining the flow velocity by a Doppler technique) to a charge amplifier 155 for indicating the Piezo-electric D.C. voltages generated by the transducer in accordance with the ambient pressure.
GB1354366A 1965-06-28 1966-03-28 Ultrasonic flowmeter Expired GB1127116A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46755565A 1965-06-28 1965-06-28
US467554A US3402604A (en) 1965-06-28 1965-06-28 Flowmeter

Publications (1)

Publication Number Publication Date
GB1127116A true GB1127116A (en) 1968-09-11

Family

ID=27042097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1354366A Expired GB1127116A (en) 1965-06-28 1966-03-28 Ultrasonic flowmeter

Country Status (2)

Country Link
DE (1) DE1548894A1 (en)
GB (1) GB1127116A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0253687A2 (en) * 1986-07-18 1988-01-20 Pfizer Hospital Products Group, Inc. Doppler tip wire guide
EP0419277A1 (en) * 1989-09-22 1991-03-27 Cardiometrics, Inc. Guide wire for use in measuring a characteristic of liquid flow in a vessel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0253687A2 (en) * 1986-07-18 1988-01-20 Pfizer Hospital Products Group, Inc. Doppler tip wire guide
EP0253687A3 (en) * 1986-07-18 1988-06-22 Pfizer Hospital Products Group, Inc. Doppler tip wire guide
EP0419277A1 (en) * 1989-09-22 1991-03-27 Cardiometrics, Inc. Guide wire for use in measuring a characteristic of liquid flow in a vessel

Also Published As

Publication number Publication date
DE1548894A1 (en) 1969-12-11

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