JPH0157727B2 - - Google Patents

Info

Publication number
JPH0157727B2
JPH0157727B2 JP7997583A JP7997583A JPH0157727B2 JP H0157727 B2 JPH0157727 B2 JP H0157727B2 JP 7997583 A JP7997583 A JP 7997583A JP 7997583 A JP7997583 A JP 7997583A JP H0157727 B2 JPH0157727 B2 JP H0157727B2
Authority
JP
Japan
Prior art keywords
water
underwater
water pipe
pipe
transmission plate
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.)
Expired
Application number
JP7997583A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60339A (ja
Inventor
Yoshio Seki
Isao Matsumoto
Kenji Yamada
Shozo Yamazaki
Masaru Sakuma
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP7997583A priority Critical patent/JPS60339A/ja
Publication of JPS60339A publication Critical patent/JPS60339A/ja
Publication of JPH0157727B2 publication Critical patent/JPH0157727B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Pipeline Systems (AREA)
JP7997583A 1983-06-03 1983-06-03 水中振動印加検出装置 Granted JPS60339A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7997583A JPS60339A (ja) 1983-06-03 1983-06-03 水中振動印加検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7997583A JPS60339A (ja) 1983-06-03 1983-06-03 水中振動印加検出装置

Publications (2)

Publication Number Publication Date
JPS60339A JPS60339A (ja) 1985-01-05
JPH0157727B2 true JPH0157727B2 (en]) 1989-12-07

Family

ID=13705321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7997583A Granted JPS60339A (ja) 1983-06-03 1983-06-03 水中振動印加検出装置

Country Status (1)

Country Link
JP (1) JPS60339A (en])

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4960664A (en) * 1986-07-31 1990-10-02 Konishiroku Photo Industry Co., Ltd. Developer composition for developing electrostatic image and toner image forming process
JP5779314B2 (ja) 2009-08-20 2015-09-16 Hoya株式会社 内視鏡装置
KR102047379B1 (ko) * 2013-02-13 2019-11-22 삼성디스플레이 주식회사 패널 특성 평가 장치 및 패널 특성 평가 방법
JP6216277B2 (ja) * 2014-03-26 2017-10-18 積水化学工業株式会社 漏洩検知装置
JP6513556B2 (ja) * 2015-11-10 2019-05-15 株式会社グッドマン 漏液音検知センサおよびそのセンサを用いた漏液検知システム
CN105396250A (zh) * 2015-12-14 2016-03-16 成都迅德科技有限公司 新型消防栓

Also Published As

Publication number Publication date
JPS60339A (ja) 1985-01-05

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