JPS51120779A - Asoustic probe - Google Patents

Asoustic probe

Info

Publication number
JPS51120779A
JPS51120779A JP50045201A JP4520175A JPS51120779A JP S51120779 A JPS51120779 A JP S51120779A JP 50045201 A JP50045201 A JP 50045201A JP 4520175 A JP4520175 A JP 4520175A JP S51120779 A JPS51120779 A JP S51120779A
Authority
JP
Japan
Prior art keywords
asoustic
probe
contacts
piezo
eliminate
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
JP50045201A
Other languages
Japanese (ja)
Other versions
JPS5334072B2 (en
Inventor
Kazuya Sato
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50045201A priority Critical patent/JPS51120779A/en
Publication of JPS51120779A publication Critical patent/JPS51120779A/en
Publication of JPS5334072B2 publication Critical patent/JPS5334072B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measuring Volume Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE: One piezo-electric vibrator contacts the bottom of the conductive case which contacts the body being tested. The other piezo-electric vibrator contacts any place other than the bottom of the case to eliminate the acoustic noise which propagates through air and when the above is combined with a differential amplifier, it is possible to eliminate electrical noise.
COPYRIGHT: (C)1976,JPO&Japio
JP50045201A 1975-04-16 1975-04-16 Asoustic probe Granted JPS51120779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50045201A JPS51120779A (en) 1975-04-16 1975-04-16 Asoustic probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50045201A JPS51120779A (en) 1975-04-16 1975-04-16 Asoustic probe

Publications (2)

Publication Number Publication Date
JPS51120779A true JPS51120779A (en) 1976-10-22
JPS5334072B2 JPS5334072B2 (en) 1978-09-19

Family

ID=12712640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50045201A Granted JPS51120779A (en) 1975-04-16 1975-04-16 Asoustic probe

Country Status (1)

Country Link
JP (1) JPS51120779A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170416A (en) * 1982-03-15 1983-10-07 野口　昌巳 Egg distinguishing apparatus
JPS59141060A (en) * 1983-01-31 1984-08-13 Fujitsu Ltd Ultrasonic probe
JPH0329496A (en) * 1989-06-26 1991-02-07 Agency Of Ind Science & Technol Ultrasonic wave array transducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4827008B2 (en) * 2003-12-26 2011-11-30 東京電力株式会社 Ultrasonic flow meter, ultrasonic transducer, ultrasonic transmission / reception unit, and flow measurement method using ultrasonic flow meter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58170416A (en) * 1982-03-15 1983-10-07 野口　昌巳 Egg distinguishing apparatus
JPS59141060A (en) * 1983-01-31 1984-08-13 Fujitsu Ltd Ultrasonic probe
JPH0329496A (en) * 1989-06-26 1991-02-07 Agency Of Ind Science & Technol Ultrasonic wave array transducer

Also Published As

Publication number Publication date
JPS5334072B2 (en) 1978-09-19

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