JPS5470788A - Converter element for acoustic emission - Google Patents

Converter element for acoustic emission

Info

Publication number
JPS5470788A
JPS5470788A JP13725777A JP13725777A JPS5470788A JP S5470788 A JPS5470788 A JP S5470788A JP 13725777 A JP13725777 A JP 13725777A JP 13725777 A JP13725777 A JP 13725777A JP S5470788 A JPS5470788 A JP S5470788A
Authority
JP
Japan
Prior art keywords
component
piezoelectric element
attachment state
container
converter element
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.)
Pending
Application number
JP13725777A
Other languages
Japanese (ja)
Inventor
Kuniharu Uchida
Satoshi Nagai
Kiyoshi Kakihara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13725777A priority Critical patent/JPS5470788A/en
Publication of JPS5470788A publication Critical patent/JPS5470788A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Abstract

PURPOSE:To obtain a converter element with which the attachment state can be grasped accurately even though the substances to which the converter element is attached may differ, by mounting more than one unit of the piezoelectric element within the container with acoustic insulation by means of the sound insulating material. CONSTITUTION:Attachment component 3 and 4 composed of the alumina sintering component are welded to the receiver surface of piezoelectric element 1 for reception use as well as piezoelectric element 2 which generates acoustic emission signal AE for the artificial sound source use. Then shield plate 5 composed of the sound insulating component such as the rubber or the like is stored in container 6 between component 3 and 4 to isolate the both elements acoustically, and is then connected to the measurement device from element 1 and 2 via connector 7 and the shield line. Thus, the artificial AE wave is generated at one piezoelectric element and then received at the other element to decide the attachment state. As a result, the good attachment state can be kept at all times, thus ensuring the steady detection of the AE signal.
JP13725777A 1977-11-17 1977-11-17 Converter element for acoustic emission Pending JPS5470788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13725777A JPS5470788A (en) 1977-11-17 1977-11-17 Converter element for acoustic emission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13725777A JPS5470788A (en) 1977-11-17 1977-11-17 Converter element for acoustic emission

Publications (1)

Publication Number Publication Date
JPS5470788A true JPS5470788A (en) 1979-06-06

Family

ID=15194427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13725777A Pending JPS5470788A (en) 1977-11-17 1977-11-17 Converter element for acoustic emission

Country Status (1)

Country Link
JP (1) JPS5470788A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149040U (en) * 1983-03-24 1984-10-05 三菱重工業株式会社 Measuring device
JPS6035240U (en) * 1983-08-17 1985-03-11 株式会社日立製作所 Piping break detection device
JPS6370139A (en) * 1986-09-12 1988-03-30 Hitachi Ltd Sound pressure level measuring type fluid leak detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149040U (en) * 1983-03-24 1984-10-05 三菱重工業株式会社 Measuring device
JPS6035240U (en) * 1983-08-17 1985-03-11 株式会社日立製作所 Piping break detection device
JPH0412440Y2 (en) * 1983-08-17 1992-03-25
JPS6370139A (en) * 1986-09-12 1988-03-30 Hitachi Ltd Sound pressure level measuring type fluid leak detector

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