CA2033153A1 - Ultrasonic Transducer - Google Patents

Ultrasonic Transducer

Info

Publication number
CA2033153A1
CA2033153A1 CA2033153A CA2033153A CA2033153A1 CA 2033153 A1 CA2033153 A1 CA 2033153A1 CA 2033153 A CA2033153 A CA 2033153A CA 2033153 A CA2033153 A CA 2033153A CA 2033153 A1 CA2033153 A1 CA 2033153A1
Authority
CA
Canada
Prior art keywords
piezoelectric element
sleeve
physical properties
various physical
application
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
CA2033153A
Other languages
French (fr)
Other versions
CA2033153C (en
Inventor
Dov Hazony
Richard E. Berris, Jr.
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.)
Cardinal Pumps & Exchangers Inc
Original Assignee
JW Harley 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 US07/490,824 external-priority patent/US5016474A/en
Application filed by JW Harley Inc filed Critical JW Harley Inc
Publication of CA2033153A1 publication Critical patent/CA2033153A1/en
Application granted granted Critical
Publication of CA2033153C publication Critical patent/CA2033153C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2437—Piezoelectric probes

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

An ultrasonic piezoelectric transducer and a method for measuring and/or monitoring various physical properties of a member, in-situ, are disclosed. The transducer includes a sleeve which is received in a blind bore provided in the member, a piezoelectric element positioned within the blind bore, and an aligning spacer means interposed between the end of the sleeve and the piezoelectric element. By the application of appropriate voltage pulses to the piezoelectric element causing interrogating signals to be applied to the member, and the measurement of the time interval between the application of an interrogating signal and the receipt of a return signal from the member, various physical properties of the member and structural information regarding same can be determined.
CA002033153A 1990-03-07 1990-12-24 Ultrasonic transducer Expired - Lifetime CA2033153C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/490,824 US5016474A (en) 1985-02-19 1990-03-07 Ultrasonic transducer
US490,824 1990-03-07

Publications (2)

Publication Number Publication Date
CA2033153A1 true CA2033153A1 (en) 1991-09-08
CA2033153C CA2033153C (en) 1998-08-18

Family

ID=23949618

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002033153A Expired - Lifetime CA2033153C (en) 1990-03-07 1990-12-24 Ultrasonic transducer

Country Status (1)

Country Link
CA (1) CA2033153C (en)

Also Published As

Publication number Publication date
CA2033153C (en) 1998-08-18

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Legal Events

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MKEX Expiry