JPS54121789A - Ultrasonic flaw detector for capillaries - Google Patents

Ultrasonic flaw detector for capillaries

Info

Publication number
JPS54121789A
JPS54121789A JP2872878A JP2872878A JPS54121789A JP S54121789 A JPS54121789 A JP S54121789A JP 2872878 A JP2872878 A JP 2872878A JP 2872878 A JP2872878 A JP 2872878A JP S54121789 A JPS54121789 A JP S54121789A
Authority
JP
Japan
Prior art keywords
receiving
transmitting
vibrators
multiplexer
transmitted
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
JP2872878A
Other languages
Japanese (ja)
Other versions
JPS638424B2 (en
Inventor
Takao Sato
Hirotoshi Kino
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 JP2872878A priority Critical patent/JPS54121789A/en
Publication of JPS54121789A publication Critical patent/JPS54121789A/en
Publication of JPS638424B2 publication Critical patent/JPS638424B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02872—Pressure

Landscapes

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

Abstract

PURPOSE: To considerably reduce the number of cables by incorporating a multiplexer in the probe.
CONSTITUTION: A probe 6 is constituted by a plurality of transmitting and receiving vibrators 2 parallel provided in the circumferential direction of a capillary 1 under inspection, a multiplexer 3, a preamplifier 4 and a channel selector 5. Then, if a channel change-over pulse is transmitted through a channel changeoever circuit 11, signal transmissin cable 7 by operating a control circufit 10, then the multiplexer 3 is changed over via the channel selector 5 and the receiving signal of the transmitting-receiving vibrators 2 is changed over. At the same time, if a flaw detection pulse is transmitted through an excitation circuit 12, the transmitting vibrators of the transmitting-receiving vibrators 2 are excited, by which ultrasonic waves are transmitted. The reflected waves thereof are then received and are inputted to a receiving circuit 13, by which the presence or not any flaw is judged. Hence, the number of required cable cores of the signal transmission cable 7 is reduced to 4.
COPYRIGHT: (C)1979,JPO&Japio
JP2872878A 1978-03-15 1978-03-15 Ultrasonic flaw detector for capillaries Granted JPS54121789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2872878A JPS54121789A (en) 1978-03-15 1978-03-15 Ultrasonic flaw detector for capillaries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2872878A JPS54121789A (en) 1978-03-15 1978-03-15 Ultrasonic flaw detector for capillaries

Publications (2)

Publication Number Publication Date
JPS54121789A true JPS54121789A (en) 1979-09-21
JPS638424B2 JPS638424B2 (en) 1988-02-23

Family

ID=12256484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2872878A Granted JPS54121789A (en) 1978-03-15 1978-03-15 Ultrasonic flaw detector for capillaries

Country Status (1)

Country Link
JP (1) JPS54121789A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879154A (en) * 1981-11-06 1983-05-12 Hitachi Ltd Ultrasonic wave probe
JPS58112959U (en) * 1982-01-28 1983-08-02 三菱重工業株式会社 Ultrasonic sensor for capillary flaw detection
JPS58182550A (en) * 1982-04-19 1983-10-25 Agency Of Ind Science & Technol Pig for flaw detection of pipeline
JPS59103270U (en) * 1982-12-25 1984-07-11 動力炉・核燃料開発事業団 Pressure pipe inspection equipment that can be separated and combined
JPS59126946A (en) * 1983-01-10 1984-07-21 Hitachi Ltd Ultrasonic probe to be inserted into pipe
JPS6088263U (en) * 1983-11-24 1985-06-17 株式会社クボタ Transmission cable for pipe inspection equipment
JPS6088264U (en) * 1983-11-24 1985-06-17 株式会社クボタ Transmission cable for pipe inspection equipment
JPS61111462A (en) * 1984-11-06 1986-05-29 Nippon Kokan Kk <Nkk> Pitting corrosion detector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146501A (en) * 1974-10-18 1976-04-21 Tokyo Shibaura Electric Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146501A (en) * 1974-10-18 1976-04-21 Tokyo Shibaura Electric Co

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879154A (en) * 1981-11-06 1983-05-12 Hitachi Ltd Ultrasonic wave probe
JPH0316619B2 (en) * 1981-11-06 1991-03-06 Hitachi Ltd
JPS58112959U (en) * 1982-01-28 1983-08-02 三菱重工業株式会社 Ultrasonic sensor for capillary flaw detection
JPH0219732Y2 (en) * 1982-01-28 1990-05-30
JPS58182550A (en) * 1982-04-19 1983-10-25 Agency Of Ind Science & Technol Pig for flaw detection of pipeline
JPS59103270U (en) * 1982-12-25 1984-07-11 動力炉・核燃料開発事業団 Pressure pipe inspection equipment that can be separated and combined
JPS59126946A (en) * 1983-01-10 1984-07-21 Hitachi Ltd Ultrasonic probe to be inserted into pipe
JPS6088263U (en) * 1983-11-24 1985-06-17 株式会社クボタ Transmission cable for pipe inspection equipment
JPS6088264U (en) * 1983-11-24 1985-06-17 株式会社クボタ Transmission cable for pipe inspection equipment
JPS61111462A (en) * 1984-11-06 1986-05-29 Nippon Kokan Kk <Nkk> Pitting corrosion detector
JPH058780B2 (en) * 1984-11-06 1993-02-03 Nippon Kokan Kk

Also Published As

Publication number Publication date
JPS638424B2 (en) 1988-02-23

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