JPS5752299A - Ultrasonic probe - Google Patents

Ultrasonic probe

Info

Publication number
JPS5752299A
JPS5752299A JP12653280A JP12653280A JPS5752299A JP S5752299 A JPS5752299 A JP S5752299A JP 12653280 A JP12653280 A JP 12653280A JP 12653280 A JP12653280 A JP 12653280A JP S5752299 A JPS5752299 A JP S5752299A
Authority
JP
Japan
Prior art keywords
vibrator
encircled
value
gaussian
inspected
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
JP12653280A
Other languages
Japanese (ja)
Other versions
JPS6210384B2 (en
Inventor
Takeharu Watanabe
Tsunaichi Sato
Hideo Marumoto
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.)
JGC Corp
Original Assignee
JGC Corp
Japan Gasoline 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 JGC Corp, Japan Gasoline Co Ltd filed Critical JGC Corp
Priority to JP12653280A priority Critical patent/JPS5752299A/en
Publication of JPS5752299A publication Critical patent/JPS5752299A/en
Publication of JPS6210384B2 publication Critical patent/JPS6210384B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To detect a defect in a short distance sound field, with very high accuracy, by forming an electrode shape on the surface of a vibrator contacting with a material to be inspected, on the surface encircled by a Gaussian curve being symmetrical to X and Y axes of orthogonal coordinate. CONSTITUTION:A metal is vapor-deposited on the contact surface of a vibrator whose section forms a circle having a radius R0. Its shape is formed to that which is shown by expression 1, 2 and is encircled by curves I-IV in four sectors respectively, which are formed by dividing equally by orthogonal coordinate of X-Y, in order that each part of the vibrator becomes a Gaussian distribution. In this case, a value r0 is decided by a maximum flaw detection distance (l) and ultrasonic wavelength lambda to a material to be inspected, and is made a value for satisfying r0>R0 and also r0<=(l<lambda>/A) (A in the expression shows a value 2-3). A plane being nearly like a bobbin, which has been encircled by said each curve I-IV is made an electrode part 2, by which a Gaussian vibrator is formed. In this way, mutual interference of acoustic waves is prevented, and also axial acoustic pressure in the direction of ultrasonic oscillation is made maximum, by which only one peak appears in the scanning graphic form.
JP12653280A 1980-09-11 1980-09-11 Ultrasonic probe Granted JPS5752299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12653280A JPS5752299A (en) 1980-09-11 1980-09-11 Ultrasonic probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12653280A JPS5752299A (en) 1980-09-11 1980-09-11 Ultrasonic probe

Publications (2)

Publication Number Publication Date
JPS5752299A true JPS5752299A (en) 1982-03-27
JPS6210384B2 JPS6210384B2 (en) 1987-03-05

Family

ID=14937527

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12653280A Granted JPS5752299A (en) 1980-09-11 1980-09-11 Ultrasonic probe

Country Status (1)

Country Link
JP (1) JPS5752299A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328756A (en) * 1989-06-27 1991-02-06 Tokimec Inc Ultrasonic rpobe
JP2022087692A (en) * 2020-12-01 2022-06-13 Tdk株式会社 Piezoelectric vibrators and ultrasonic transducers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3008860U (en) * 1994-06-14 1995-03-20 杉山金属株式会社 Electric heating board

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328756A (en) * 1989-06-27 1991-02-06 Tokimec Inc Ultrasonic rpobe
JP2022087692A (en) * 2020-12-01 2022-06-13 Tdk株式会社 Piezoelectric vibrators and ultrasonic transducers

Also Published As

Publication number Publication date
JPS6210384B2 (en) 1987-03-05

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