NL8402377A - Alarmstelsel voor geisoleerde pijpstelsels. - Google Patents

Alarmstelsel voor geisoleerde pijpstelsels. Download PDF

Info

Publication number
NL8402377A
NL8402377A NL8402377A NL8402377A NL8402377A NL 8402377 A NL8402377 A NL 8402377A NL 8402377 A NL8402377 A NL 8402377A NL 8402377 A NL8402377 A NL 8402377A NL 8402377 A NL8402377 A NL 8402377A
Authority
NL
Netherlands
Prior art keywords
alarm
insulation
signal
wire
tri
Prior art date
Application number
NL8402377A
Other languages
English (en)
Dutch (nl)
Original Assignee
Helmersson Rune
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 Helmersson Rune filed Critical Helmersson Rune
Publication of NL8402377A publication Critical patent/NL8402377A/nl

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
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • 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
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
NL8402377A 1983-12-08 1984-07-27 Alarmstelsel voor geisoleerde pijpstelsels. NL8402377A (nl)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE8306789A SE456376B (sv) 1983-12-08 1983-12-08 Larmanordning vid isolerat rorsystem
SE8306789 1983-12-08
BE213170 1984-06-19
BE0/213170A BE899954A (fr) 1983-12-08 1984-06-19 Dispositif d'alarme pour systemes de conduits isoles.
BE0/213408A BE900251R (fr) 1983-12-08 1984-07-27 Dispositif d'alarme pour systemes de conduits isoles.
BE213408 1984-07-27

Publications (1)

Publication Number Publication Date
NL8402377A true NL8402377A (nl) 1985-07-01

Family

ID=27158750

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8402377A NL8402377A (nl) 1983-12-08 1984-07-27 Alarmstelsel voor geisoleerde pijpstelsels.

Country Status (10)

Country Link
US (1) US4746911A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS60125554A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (2) BE899954A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1219312A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH663852A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3433028A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2556442B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2151059B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL8402377A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE456376B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207253A1 (de) * 1985-05-09 1987-01-07 Meier-Schenk AG (Meier-Schenk SA) Sensor zum Feststellen von Nassstellen in der thermischen Isolierung von Rohrleitungen
US4939506A (en) * 1988-01-26 1990-07-03 Dresser-Rand Company Grounding brush monitor
US5134378A (en) * 1991-03-08 1992-07-28 Michael Twerdochlib System and method for detecting faults in generator bearing pedestals and seal insulation
CN100514050C (zh) * 2005-07-29 2009-07-15 华为技术有限公司 一种电路板污染检测告警方法

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1919802A (en) * 1929-09-25 1933-07-25 Western Electric Co Apparatus for testing insulation
US2422288A (en) * 1944-06-02 1947-06-17 Western Electric Co Apparatus for testing electrical insulation
US2759175A (en) * 1954-03-12 1956-08-14 Thomas R Spalding Leak detector for pipe joint
GB819099A (en) * 1956-06-20 1959-08-26 Colne Switchgear K & W Ltd Improvements in flame detector or flame failure protection systems
GB919517A (en) * 1958-06-04 1963-02-27 Raymond Gstalder A system for detecting, indicating and locating automatically liquid or gas leaks or excessive temperatures at separate fixed points or over a continuous length or distance
US3184730A (en) * 1962-07-30 1965-05-18 Robert H Irish Intrusion detection system
US3721898A (en) * 1968-12-04 1973-03-20 P Dragoumis Apparatus for detecting leakage from or rupture of pipes and other vessels containing fluid under pressure
GB1311472A (en) * 1969-03-18 1973-03-28 Rasmussen As E Pipe system of heat insulated pipes including means for detecting the presence of moisture
US3648282A (en) * 1970-02-17 1972-03-07 John B Kelly Alarm signal apparatus to indicate damage to the insulation of an electrical cable as it is being laid underground
GB1343767A (en) * 1970-02-26 1974-01-16 Emi Ltd Fluid discrimination devices
US4013924A (en) * 1970-03-19 1977-03-22 A/S E. Rasmussen Methods and means for detecting the presence of moisture adjacent insulated pipes
US3731295A (en) * 1971-03-17 1973-05-01 Gen Electric Leak detector for enclosed electrical apparatus
GB1344691A (en) * 1971-04-30 1974-01-23 Nat Res Dev Tuned circuit monitor for structural materials
JPS4970183A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-11-10 1974-07-06
GB1455415A (en) * 1973-03-26 1976-11-10 Rasmussen As E Insulated pipe system having means for detection of moisture in the insulation thereof
DE2337983C2 (de) * 1973-07-26 1984-03-22 Bernd 6271 Limbach Brandes Ortungs- und Überwachungsschaltung
JPS5236290A (en) * 1975-09-18 1977-03-19 Power Reactor & Nuclear Fuel Dev Corp Liquid sodium leakage detector
US4157541A (en) * 1977-10-26 1979-06-05 Malor Mfg. Inc. Device for detecting cable insulation faults
GB2023896A (en) * 1978-06-23 1980-01-03 Moeller As I C Alarm systems
SE414532B (sv) * 1979-06-18 1980-08-04 Blom H Anordning vid en fjerrvermeledning samt sett att framstella en sadan anordning
US4422034A (en) * 1980-01-22 1983-12-20 Toyo Sushinki Kabushiki Kaisha Method for measuring insulation resistance and device therefor
FR2524614A1 (fr) * 1982-04-02 1983-10-07 Radiotechnique Compelec Procede utilisant l'effet redresseur d'une flamme pour surveiller la marche d'un bruleur, et dispositif pour mettre en oeuvre ce procede

Also Published As

Publication number Publication date
SE456376B (sv) 1988-09-26
DE3433028A1 (de) 1985-06-20
FR2556442B1 (fr) 1987-08-28
FR2556442A1 (fr) 1985-06-14
JPS60125554A (ja) 1985-07-04
SE8306789L (sv) 1985-06-09
BE900251R (fr) 1984-11-16
US4746911A (en) 1988-05-24
JPH0363700B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-10-02
SE8306789D0 (sv) 1983-12-08
CH663852A5 (de) 1988-01-15
BE899954A (fr) 1984-10-15
CA1219312A (en) 1987-03-17
GB2151059B (en) 1987-01-28
DE3433028C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-05-27
GB2151059A (en) 1985-07-10
GB8423333D0 (en) 1984-10-17

Similar Documents

Publication Publication Date Title
US4420752A (en) Real-time parameter sensor-transmitter
EP1296301A3 (en) Fire alarm system, fire sensor, fire receiver, and repeater
EP0398396A3 (en) Voltage sensor
US4183072A (en) Protective relaying system
EP0784210A3 (en) Apparatus for detecting trouble location in wire harnesses
ATE387742T1 (de) Überwachungssystem
GB2106291A (en) A cascade monitoring apparatus
NL8402377A (nl) Alarmstelsel voor geisoleerde pijpstelsels.
CA2391442A1 (en) Large current watchdog circuit for a photodetector
US4198621A (en) Electrical remote sensing system
FR2455843A1 (fr) Cloture electronique pour animaux
KR940002187B1 (ko) 전자 유량계
US4382252A (en) Intrusion warning system
HUP9602509A2 (hu) Szonda egyoldalt kinyúló fejházzal
US7345595B1 (en) Short driveway vehicle motion detector
CA1139371A (en) Apparatus for fault direction-comparison protection
US7633733B1 (en) Short circuit detector for fieldbus cable system network
EP0278102A3 (en) Multiple point remore temperature sensing
KR900003542B1 (ko) 절연핀 파이프 시스템의 경보장치
DE3835406A1 (de) Vorrichtung zum messen eines fuellstandes
EP1174839A3 (en) Anti-tamper device and relative method for detecting tampering with a component
ATE460678T1 (de) Elektrisches versorgungsnetzwerk mit kurzschluss- und unterbrechungsdetektion für bordnetze von kraftfahrzeugen
RU2140670C1 (ru) Устройство для тревожной сигнализации
JPH11258017A (ja) 渦流量計の入力回路
EP0818866A3 (en) Abnormality detecting device for a phase advancing capacitor

Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
BV The patent application has lapsed