GB707191A - Apparatus for the detection of fluid leakages from pipes or containers for fluids under pressure - Google Patents

Apparatus for the detection of fluid leakages from pipes or containers for fluids under pressure

Info

Publication number
GB707191A
GB707191A GB10535/52A GB1053552A GB707191A GB 707191 A GB707191 A GB 707191A GB 10535/52 A GB10535/52 A GB 10535/52A GB 1053552 A GB1053552 A GB 1053552A GB 707191 A GB707191 A GB 707191A
Authority
GB
United Kingdom
Prior art keywords
amplifier
band
april
microphone
probe
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
GB10535/52A
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.)
ROBERT EDOUARD ARTHUR DESPIEGE
Original Assignee
ROBERT EDOUARD ARTHUR DESPIEGE
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 ROBERT EDOUARD ARTHUR DESPIEGE filed Critical ROBERT EDOUARD ARTHUR DESPIEGE
Publication of GB707191A publication Critical patent/GB707191A/en
Expired 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

707,191. Water-leak detectors. DESPIEGELAERE, R. E. A. April 25, 1952 [April 25, 1951], No. 10535/52. , Class 40 (4) [Also in Group XXXVIII] Fluid leaks are detected by means of a microphone 1 and an amplifier 4 responsive to a particular band of frequencies. For water leaks the band extends from 2,000 to 4,500 cycles per sec. The vibrations are fed by a probe 2, a diaphragm 16, a passage 18 and a transverse channel 19 to an electro-dynamic transducer 25. A resonant chamber 20 may be adjusted by means of a winged bolt 22 to tune the air cavity to the frequency to be detected. The casing enclosing the microphone and the probe is acoustically insulated. The amplifier, Figs. 1, 3, includes four amplifying valves 28, 19, 30, 31 and three inter-stage band-pass filters 33, 34, 35. The output transformer 37 is connected to headphones through a filter 41 and to' a bridge rectifier 38. The rectified output is amplified by a valve 39 to operate a meter 5. The rectified output is also fed back to valve 31 to damp the meter 3. A voltmeter 8 may be connected to either of the batteries by means of a switch 7. A rheostat 10 serves as a volume control. Figs. 4a, 4b, 4c (not shown) illustrate the amplifier circuit in greater detail.
GB10535/52A 1951-04-25 1952-04-25 Apparatus for the detection of fluid leakages from pipes or containers for fluids under pressure Expired GB707191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE707191X 1951-04-25

Publications (1)

Publication Number Publication Date
GB707191A true GB707191A (en) 1954-04-14

Family

ID=3878531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10535/52A Expired GB707191A (en) 1951-04-25 1952-04-25 Apparatus for the detection of fluid leakages from pipes or containers for fluids under pressure

Country Status (6)

Country Link
BE (1) BE502847A (en)
DE (1) DE888378C (en)
FR (1) FR1061773A (en)
GB (1) GB707191A (en)
LU (1) LU31360A1 (en)
NL (1) NL98684C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2331152A (en) * 1997-10-29 1999-05-12 Carl Denby Leakage testing
CN104089186A (en) * 2014-06-30 2014-10-08 东北大学 Pipe pressure anomaly diagnostic method based on combined filtering and dynamic thresholds
CN109386741A (en) * 2018-11-28 2019-02-26 湖南普奇地质勘探设备研究院（普通合伙) Pipe leakage detection device and method
CN109594613A (en) * 2017-11-20 2019-04-09 山东昌乐实康水业有限公司 Tap water supply device and leak detection method with leak self-checking function
CN113199715A (en) * 2021-03-25 2021-08-03 占丽萍 Leakage early warning type cooling system for injection mold

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253457A (en) * 1961-12-15 1966-05-31 Westinghouse Electric Corp Apparatus for locating trouble sources which generate ultrasonic vibrations
US3254528A (en) * 1962-11-23 1966-06-07 Paul L Michael Transducer mount
GB1121824A (en) * 1965-12-14 1968-07-31 Exxon Research Engineering Co Pipeline leak detector
US3500676A (en) * 1968-03-15 1970-03-17 Gulf Research Development Co Methods and apparatus for detecting leaks
DE3112829C2 (en) * 1981-03-31 1986-01-16 Seba-Dynatronic Mess- und Ortungstechnik gmbH, 8601 Baunach Method and apparatus for locating raw damage with at least one microphone
FR2539507B1 (en) * 1983-01-13 1985-10-18 Electricite De France METHOD AND DEVICE FOR LOCATING A LEAK ON A TUBULAR HEAT EXCHANGER

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2331152A (en) * 1997-10-29 1999-05-12 Carl Denby Leakage testing
CN104089186A (en) * 2014-06-30 2014-10-08 东北大学 Pipe pressure anomaly diagnostic method based on combined filtering and dynamic thresholds
CN104089186B (en) * 2014-06-30 2016-09-28 东北大学 A kind of pipeline pressure abnormality diagnostic method based on combined filter and dynamic threshold
CN109594613A (en) * 2017-11-20 2019-04-09 山东昌乐实康水业有限公司 Tap water supply device and leak detection method with leak self-checking function
CN109594613B (en) * 2017-11-20 2023-10-10 山东昌乐实康水业有限公司 Tap water supply device with water leakage self-checking function and leakage detection method
CN109386741A (en) * 2018-11-28 2019-02-26 湖南普奇地质勘探设备研究院（普通合伙) Pipe leakage detection device and method
CN113199715A (en) * 2021-03-25 2021-08-03 占丽萍 Leakage early warning type cooling system for injection mold

Also Published As

Publication number Publication date
FR1061773A (en) 1954-04-15
LU31360A1 (en)
DE888378C (en) 1953-08-31
NL98684C (en)
BE502847A (en)

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