JPS5593005A - Measuring method for gap - Google Patents

Measuring method for gap

Info

Publication number
JPS5593005A
JPS5593005A JP84079A JP84079A JPS5593005A JP S5593005 A JPS5593005 A JP S5593005A JP 84079 A JP84079 A JP 84079A JP 84079 A JP84079 A JP 84079A JP S5593005 A JPS5593005 A JP S5593005A
Authority
JP
Japan
Prior art keywords
gap
ultrasonic
concrete
wave
received
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
JP84079A
Other languages
Japanese (ja)
Inventor
Naoe Matsuda
Yoichi Nemoto
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 JP84079A priority Critical patent/JPS5593005A/en
Publication of JPS5593005A publication Critical patent/JPS5593005A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE: To measure a gap between ultrasonic transmitting and receiving methods provided apart on a metal plate, by measuring a received wave by transmitting an ultrasonic wave toward a concrete sode when casting concrete adjoining to the metal plate.
CONSTITUTION: There is concrete 3 adjoining to steel plate 20. On steel plate 20, ultrasonic sender 11 and ultrasonic receiver 12 are provided at an interval of fixed distance, sender 11 sends a wave of a fixed frequency through pulse oscillator 13, and a voltage of a received ultrasonic wave displayed on synchroscope 16 through pre-amplifier 14 and dicriminator 15 is masured to measure a gap. As the received voltage is lower, the packing density of concrete is higher, so that the degree of the gap can quantitatively be measured without destroying.
COPYRIGHT: (C)1980,JPO&Japio
JP84079A 1979-01-06 1979-01-06 Measuring method for gap Pending JPS5593005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP84079A JPS5593005A (en) 1979-01-06 1979-01-06 Measuring method for gap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP84079A JPS5593005A (en) 1979-01-06 1979-01-06 Measuring method for gap

Publications (1)

Publication Number Publication Date
JPS5593005A true JPS5593005A (en) 1980-07-15

Family

ID=11484808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP84079A Pending JPS5593005A (en) 1979-01-06 1979-01-06 Measuring method for gap

Country Status (1)

Country Link
JP (1) JPS5593005A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073961A (en) * 1983-09-26 1985-04-26 戸田建設株式会社 Automatic concrete compaction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073961A (en) * 1983-09-26 1985-04-26 戸田建設株式会社 Automatic concrete compaction method

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