DE69917920D1 - Erfassung von fadenverschleiss - Google Patents

Erfassung von fadenverschleiss

Info

Publication number
DE69917920D1
DE69917920D1 DE69917920T DE69917920T DE69917920D1 DE 69917920 D1 DE69917920 D1 DE 69917920D1 DE 69917920 T DE69917920 T DE 69917920T DE 69917920 T DE69917920 T DE 69917920T DE 69917920 D1 DE69917920 D1 DE 69917920D1
Authority
DE
Germany
Prior art keywords
lamp
threshold value
resistance
change
constant current
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 - Lifetime
Application number
DE69917920T
Other languages
English (en)
Other versions
DE69917920T2 (de
Inventor
Ake Pettersson
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.)
ADB Safegate Sweden AB
Original Assignee
Safegate International AB
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 Safegate International AB filed Critical Safegate International AB
Application granted granted Critical
Publication of DE69917920D1 publication Critical patent/DE69917920D1/de
Publication of DE69917920T2 publication Critical patent/DE69917920T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/23—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series
    • H05B47/235—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series with communication between the lamps and a central unit

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Traffic Control Systems (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Materials For Medical Uses (AREA)
DE69917920T 1998-10-22 1999-10-19 Erfassung von fadenverschleiss Expired - Lifetime DE69917920T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9803620 1998-10-22
SE9803620A SE515414C2 (sv) 1998-10-22 1998-10-22 Förfarande och anordning för detektering av försämrade lampglödtrådar
PCT/SE1999/001877 WO2000024229A1 (en) 1998-10-22 1999-10-19 Deteriorated filament detection

Publications (2)

Publication Number Publication Date
DE69917920D1 true DE69917920D1 (de) 2004-07-15
DE69917920T2 DE69917920T2 (de) 2005-06-09

Family

ID=20413051

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69917920T Expired - Lifetime DE69917920T2 (de) 1998-10-22 1999-10-19 Erfassung von fadenverschleiss

Country Status (12)

Country Link
US (1) US6556017B1 (de)
EP (1) EP1121839B1 (de)
JP (1) JP4535621B2 (de)
CN (1) CN1239051C (de)
AT (1) ATE268979T1 (de)
AU (1) AU1427600A (de)
BR (1) BR9914680A (de)
CA (1) CA2347483C (de)
DE (1) DE69917920T2 (de)
ES (1) ES2221481T3 (de)
SE (1) SE515414C2 (de)
WO (1) WO2000024229A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666786B2 (en) * 2000-12-29 2003-12-23 Shimano Inc. Chamfered sprocket assembly
US6784667B2 (en) * 2002-04-03 2004-08-31 The United States Of America As Represented By The Secretary Of The Navy Estimated remaining lamp life indicator system
US6911777B1 (en) * 2003-08-14 2005-06-28 Cooper Industries, Inc. Clamp-on low power isolation transformer for airfield lighting
EP1692532B1 (de) * 2003-12-11 2009-04-15 Conti Temic microelectronic GmbH Verfahren zur funktionspruefung einer lampenschaltung
WO2007122546A2 (en) * 2006-04-21 2007-11-01 Koninklijke Philips Electronics N.V. Method and device for monitoring the condition of halogen bulbs in vehicle headlights
EP1865756A1 (de) * 2006-06-06 2007-12-12 Nesa A/S Beleuchtungssystem
US7382454B1 (en) 2006-09-24 2008-06-03 Carl Anthony Turner System and method for optically assessing lamp condition
US7560867B2 (en) * 2006-10-17 2009-07-14 Access Business Group International, Llc Starter for a gas discharge light source
FR2919458B1 (fr) * 2007-07-25 2009-10-16 Sidel Participations Procede de detection de l'etat d'une lampe de chauffage de corps d'ebauches en matiere thermoplastique et installation de chauffage agencee pour sa mise en oeuvre
TWI445457B (zh) 2011-01-04 2014-07-11 Beyond Innovation Tech Co Ltd 日光燈管的驅動裝置及其方法與所應用之照明裝置
US9008992B2 (en) 2011-03-25 2015-04-14 Thomas & Betts International, Inc. Testing and monitoring an electrical system
JP5812292B2 (ja) * 2012-03-29 2015-11-11 東芝ライテック株式会社 標識灯および標識灯システム
WO2014013452A2 (en) * 2012-07-19 2014-01-23 Koninklijke Philips N.V. Lighting device comprising a monitoring circuit
JP2014182883A (ja) * 2013-03-18 2014-09-29 Toshiba Lighting & Technology Corp 直列負荷制御装置および標識灯装置
GB2506708B (en) * 2013-05-01 2014-09-03 Mk Test Systems Method for testing equipment
US9472108B2 (en) 2014-03-17 2016-10-18 Honeywell International Inc. Updating an airfield lighting system with an LED light source
DE102017210681A1 (de) * 2017-06-26 2018-12-27 Dr. Johannes Heidenhain Gesellschaft Mit Beschränkter Haftung Sensorschaltungsanordnung
CN112596558B (zh) * 2020-12-25 2022-06-28 航电中和山东医疗技术有限公司 一种加热管温度监控装置及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165541A (en) * 1979-06-11 1980-12-24 Mitsubishi Electric Corp Electron gun
JPH0752677B2 (ja) * 1988-08-31 1995-06-05 ホーヤ株式会社 ランプ異常検出回路およびランプ切替装置
SE9300193L (sv) * 1992-11-20 1994-05-21 Airport Tech Scandinavia Metod och system för kommunikation från en transformators sekundärsida, särskilt för ett lampövervakningssystem för flygplatsljus
JP3536933B2 (ja) * 1993-03-31 2004-06-14 東芝ライテック株式会社 白熱灯調光装置
US5578998A (en) * 1995-03-20 1996-11-26 Chivas Products Limited Method and apparatus for predicting of lamp failure
JPH09232083A (ja) * 1996-02-26 1997-09-05 Sansha Electric Mfg Co Ltd 照明装置
US5675246A (en) * 1996-03-18 1997-10-07 Msx, Inc. Current flow indicator

Also Published As

Publication number Publication date
CA2347483A1 (en) 2000-04-27
SE515414C2 (sv) 2001-07-30
EP1121839A1 (de) 2001-08-08
CN1330854A (zh) 2002-01-09
ATE268979T1 (de) 2004-06-15
BR9914680A (pt) 2001-07-24
CA2347483C (en) 2009-02-03
SE9803620L (sv) 2000-04-23
DE69917920T2 (de) 2005-06-09
CN1239051C (zh) 2006-01-25
JP4535621B2 (ja) 2010-09-01
AU1427600A (en) 2000-05-08
US6556017B1 (en) 2003-04-29
JP2002528871A (ja) 2002-09-03
EP1121839B1 (de) 2004-06-09
ES2221481T3 (es) 2004-12-16
WO2000024229A1 (en) 2000-04-27
SE9803620D0 (sv) 1998-10-22

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