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JPS576331A - Detecting system for underground water - Google Patents

Detecting system for underground water

Info

Publication number
JPS576331A
JPS576331A JP7997380A JP7997380A JPS576331A JP S576331 A JPS576331 A JP S576331A JP 7997380 A JP7997380 A JP 7997380A JP 7997380 A JP7997380 A JP 7997380A JP S576331 A JPS576331 A JP S576331A
Authority
JP
Japan
Prior art keywords
water
air bubbles
sound
leakage
defoaming
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
JP7997380A
Other languages
Japanese (ja)
Inventor
Susumu Yagyu
Yoshio Endo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7997380A priority Critical patent/JPS576331A/en
Publication of JPS576331A publication Critical patent/JPS576331A/en
Pending 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)
  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE:To execute the searching work easily, quickly and surely even with greater underground noise, by executing water leakage detection through giving air bubbles to flowing water. CONSTITUTION:Air bubbles 11 are blown in flowing water 10 in an underground buried water supplying pipe from outside 4. The air bubbles 11 move together flowing water toward the current direction of the flowing water 10 and they are discharged in an underground cavity part 7 with leaked jetting water 6. If no water pool 8 exists in underground cavity 7, the leaked jetting water 6 collides to a surrounding wall 9 to generate the sound of water leakage and defoaming sound of the air bubbles discharged to the part 7 is generated. This is caught with a leakage sound detector 1 placed on the surface 2 of land. If the water pool 8 is moderately large and the water pressure of the flowing water 10 is low, the sound of the water leakage can not be detected, but the air bubbles 11 float and fluctuate in water in the water pool 8 and it collides with the surrounding wall 9, the air bubbles 11 are defoamed, the defoaming sound is generated, and said defoaming can be listened to a water leakage detector 1, then the leaked part 5 can be searched.
JP7997380A 1980-06-13 1980-06-13 Detecting system for underground water Pending JPS576331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7997380A JPS576331A (en) 1980-06-13 1980-06-13 Detecting system for underground water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7997380A JPS576331A (en) 1980-06-13 1980-06-13 Detecting system for underground water

Publications (1)

Publication Number Publication Date
JPS576331A true JPS576331A (en) 1982-01-13

Family

ID=13705261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7997380A Pending JPS576331A (en) 1980-06-13 1980-06-13 Detecting system for underground water

Country Status (1)

Country Link
JP (1) JPS576331A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537667A (en) * 2011-12-29 2012-07-04 杭州翰平电子技术有限公司 Underground water pipe leakage detection positioning system and method thereof
ES2563130A1 (en) * 2014-09-10 2016-03-10 Fugatec I Mas D S.L. Detector of leakage of liquids in pipes (Machine-translation by Google Translate, not legally binding)
CN117890478A (en) * 2024-01-09 2024-04-16 上海申华声学装备有限公司 Device for testing noise reduction material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537667A (en) * 2011-12-29 2012-07-04 杭州翰平电子技术有限公司 Underground water pipe leakage detection positioning system and method thereof
ES2563130A1 (en) * 2014-09-10 2016-03-10 Fugatec I Mas D S.L. Detector of leakage of liquids in pipes (Machine-translation by Google Translate, not legally binding)
CN117890478A (en) * 2024-01-09 2024-04-16 上海申华声学装备有限公司 Device for testing noise reduction material

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