JPH0230038U - - Google Patents
Info
- Publication number
- JPH0230038U JPH0230038U JP1988107926U JP10792688U JPH0230038U JP H0230038 U JPH0230038 U JP H0230038U JP 1988107926 U JP1988107926 U JP 1988107926U JP 10792688 U JP10792688 U JP 10792688U JP H0230038 U JPH0230038 U JP H0230038U
- Authority
- JP
- Japan
- Prior art keywords
- conducting wire
- wire
- conductive
- power source
- electrode
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
- 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
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第1図、第2図の図面はこの考案の一実施例を
示すものであり、第1図は漏液検知装置の基本回
路図、第2図は検知部の断面図である。 1……検知部、4……第二の導線、4a……始
端、4b……終端、6……検流計(検出手段)、
7,8……既知の抵抗、9……電源、31……第
一の導線、31a……始端、31b……終端、3
2……絶縁体、51……第三の導線。
示すものであり、第1図は漏液検知装置の基本回
路図、第2図は検知部の断面図である。 1……検知部、4……第二の導線、4a……始
端、4b……終端、6……検流計(検出手段)、
7,8……既知の抵抗、9……電源、31……第
一の導線、31a……始端、31b……終端、3
2……絶縁体、51……第三の導線。
Claims (1)
- 絶縁体で被覆された第一の導線と、この第一の
導線に並行して配置されその終端が第一の導線の
終端に接続された第二の導線と、この第二の導線
に非接触状態で並行して配置された第三の導線と
を束ねて長尺の検知部が構成されており、この検
知部の第一の導線の始端と第二の導線の始端が電
位差を検出する検出手段を介して接続されるとと
もに、それぞれ既知の抵抗を介して電源の一方の
電極に接続され、上記第三の導線が上記電源の他
方の電極に接続されていて、上記第二の導線と第
三の導線が漏液により橋絡した時にホイートスト
ンブリツジ回路が形成されるようにしたことを特
徴とする漏液検知装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988107926U JPH0230038U (ja) | 1988-08-18 | 1988-08-18 | |
US07/385,187 US4972179A (en) | 1988-08-18 | 1989-07-26 | Liquid leakage detection apparatus including wheatstone bridge |
EP19890307627 EP0356017A3 (en) | 1988-08-18 | 1989-07-27 | Liquid leakage detection apparatus |
GB8917212A GB2222260A (en) | 1988-08-18 | 1989-07-27 | Liquid leakage detection apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988107926U JPH0230038U (ja) | 1988-08-18 | 1988-08-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0230038U true JPH0230038U (ja) | 1990-02-26 |
Family
ID=14471553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988107926U Pending JPH0230038U (ja) | 1988-08-18 | 1988-08-18 |
Country Status (4)
Country | Link |
---|---|
US (1) | US4972179A (ja) |
EP (1) | EP0356017A3 (ja) |
JP (1) | JPH0230038U (ja) |
GB (1) | GB2222260A (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5341128A (en) * | 1992-04-10 | 1994-08-23 | Chomerics, Inc. | Sensor element for detection of hydrocarbons |
US5504433A (en) * | 1992-10-23 | 1996-04-02 | International Fuel Cells Corporation | Electrochemical sensor for monitoring electrolyte content |
FR2709347B1 (fr) * | 1993-08-27 | 1995-10-13 | Ttk | Installation de détection et de localisation de fuites de liquide. |
DE19544391A1 (de) * | 1995-11-15 | 1997-05-22 | Siemens Ag | Meßschaltung zum Erfassen und Orten von Wassereinbrüchen an Rohr- oder Kabelanlagen |
EP0786655B1 (de) * | 1997-05-07 | 2002-07-24 | Martin Lehmann | Verfahren zur Dichtheitsprüfung geschlossener Behälter, Prüfkammer, Prüfanordnung und Prüfanlage hierfür |
US6787718B2 (en) * | 2002-04-25 | 2004-09-07 | Agilent Technologies, Inc. | Device, method, and system for detecting the presence of liquid in proximity to electronic components |
JP4009623B2 (ja) * | 2004-08-16 | 2007-11-21 | 埼玉日本電気株式会社 | 水濡れ検出シール、これを用いた携帯電話機および電子機器 |
JP5037043B2 (ja) * | 2005-07-14 | 2012-09-26 | ユニ・チャーム株式会社 | 水分検知センサ |
US7525444B2 (en) * | 2006-02-17 | 2009-04-28 | Perma-Pipe, Inc. | Sensor for detecting hydrocarbons |
US8104328B2 (en) * | 2006-03-22 | 2012-01-31 | Atmi Packaging, Inc. | Apparatus and methods for leak detection in bioprocessing bags |
FR3066272B1 (fr) * | 2017-05-12 | 2019-07-19 | Sasha Dabetic | Cable detecteur de liquides conducteurs et non conducteurs |
CN112556943B (zh) * | 2020-12-10 | 2022-10-21 | 北京精密机电控制设备研究所 | 漏水定位检测装置 |
CN113833990A (zh) * | 2021-09-29 | 2021-12-24 | 沧州市生态环境监控中心(沧州市机动车污染防治监控中心) | 一种环保工程污水管道用泄漏自动报警装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA697960A (en) * | 1964-11-17 | Jore Bjorn | Leak-detecting telephone cable | |
GB164965A (en) * | 1920-06-19 | 1921-06-23 | Leicester Richards Lee | Improvements in or relating to electric cables |
US3105214A (en) * | 1959-02-25 | 1963-09-24 | Univ California | Moisture measuring apparatus |
DE1913125A1 (de) * | 1969-03-14 | 1970-09-17 | Siemens Ag | Anordnung zur UEberwachung des Eindringens von Feuchtigkeit in Fernmeldekabel |
US4206632A (en) * | 1979-01-23 | 1980-06-10 | Hirosuke Suzuki | Liquid detecting device |
DE2911703A1 (de) * | 1979-03-24 | 1980-10-02 | Kabel Metallwerke Ghh | Nachrichtenkabel mit kunststoffisolierten adern |
DE3016131A1 (de) * | 1980-04-23 | 1981-10-29 | Siemens AG, 1000 Berlin und 8000 München | Nachrichtenkabel mit einer vorrichtung zur bestimmung des feuchtezustandes |
ATE33310T1 (de) * | 1982-12-23 | 1988-04-15 | Bicc Plc | Isoliertes rohrleitungssystem. |
NZ208683A (en) * | 1983-06-30 | 1988-04-29 | Raychem Corp | Resistive sensor system for locating events |
EP0253085A1 (en) * | 1983-06-30 | 1988-01-20 | RAYCHEM CORPORATION (a Delaware corporation) | Method for detecting and obtaining information about changes in variables |
JPS61128148A (ja) * | 1984-11-27 | 1986-06-16 | Sumitomo Electric Ind Ltd | 配水パイプの漏水検知センサ− |
US4663614A (en) * | 1985-08-05 | 1987-05-05 | Rauchwerger George P | Hydrocarbon detector system |
GB8603866D0 (en) * | 1986-02-17 | 1986-03-26 | Webb J A | Detecting leakage of liquids from machines |
EP0262667B1 (en) * | 1986-09-30 | 1992-05-27 | Tatsuta Electric Wire & Cable Co., Ltd | Liquid leakage detector line |
GB2220494B (en) * | 1988-07-09 | 1992-04-15 | Gore & Ass | A system for the detection and location of leaks |
-
1988
- 1988-08-18 JP JP1988107926U patent/JPH0230038U/ja active Pending
-
1989
- 1989-07-26 US US07/385,187 patent/US4972179A/en not_active Expired - Fee Related
- 1989-07-27 EP EP19890307627 patent/EP0356017A3/en not_active Withdrawn
- 1989-07-27 GB GB8917212A patent/GB2222260A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB8917212D0 (en) | 1989-09-13 |
EP0356017A3 (en) | 1991-07-24 |
GB2222260A (en) | 1990-02-28 |
US4972179A (en) | 1990-11-20 |
EP0356017A2 (en) | 1990-02-28 |
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