JPS5676047A - Characteristic evaluation of ae sensor - Google Patents

Characteristic evaluation of ae sensor

Info

Publication number
JPS5676047A
JPS5676047A JP15327179A JP15327179A JPS5676047A JP S5676047 A JPS5676047 A JP S5676047A JP 15327179 A JP15327179 A JP 15327179A JP 15327179 A JP15327179 A JP 15327179A JP S5676047 A JPS5676047 A JP S5676047A
Authority
JP
Japan
Prior art keywords
sensor
cavitation
detected
generated
collapsing
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
JP15327179A
Other languages
Japanese (ja)
Inventor
Takashi Matsuo
Etsuo Kunimoto
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP15327179A priority Critical patent/JPS5676047A/en
Publication of JPS5676047A publication Critical patent/JPS5676047A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE: To perform relative sensitivity calibration of plural AE sensors quantatively , correctly and easily by a method wherein ultrasonic waves are generated by a collapsing of cavitation generated with a driving piece dipped in a liquid and these are detected by means of an AE sensor.
CONSTITUTION: When a cavitation generation vibrating piece 15 is oscillated with a signal generator 11 of a magnetostriction oscillator 10, cavitation is continuously generated in the dipping liquid level and it collapases. The collapsing frequency thereof becomes ultrasonic signals of several kHzWseveral 100kHz propagating in a liquid 21 and are detected by means of an AE sensor 31. The ultrasonic signals detected through the AE sensor 31 are amplified through a preamplifier 32 and processed through a band pass filter 33 and a main amplifier 34, and thereafter, output signals in proportion to the cavitation intensity are output. On this account, with this, a relative sensitivity characteristics and frequency characteristics of each AE sensor are easily obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP15327179A 1979-11-27 1979-11-27 Characteristic evaluation of ae sensor Pending JPS5676047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15327179A JPS5676047A (en) 1979-11-27 1979-11-27 Characteristic evaluation of ae sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15327179A JPS5676047A (en) 1979-11-27 1979-11-27 Characteristic evaluation of ae sensor

Publications (1)

Publication Number Publication Date
JPS5676047A true JPS5676047A (en) 1981-06-23

Family

ID=15558804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15327179A Pending JPS5676047A (en) 1979-11-27 1979-11-27 Characteristic evaluation of ae sensor

Country Status (1)

Country Link
JP (1) JPS5676047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017009510A (en) * 2015-06-25 2017-01-12 前田建設工業株式会社 Pressure delivery performance evaluation system of fresh concrete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017009510A (en) * 2015-06-25 2017-01-12 前田建設工業株式会社 Pressure delivery performance evaluation system of fresh concrete

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