NO307675B1 - Anvendelse av en mÕleanordning til indikering av en forurenset, tilsmusset eller brannfarlig tilstand - Google Patents

Anvendelse av en mÕleanordning til indikering av en forurenset, tilsmusset eller brannfarlig tilstand

Info

Publication number
NO307675B1
NO307675B1 NO971822A NO971822A NO307675B1 NO 307675 B1 NO307675 B1 NO 307675B1 NO 971822 A NO971822 A NO 971822A NO 971822 A NO971822 A NO 971822A NO 307675 B1 NO307675 B1 NO 307675B1
Authority
NO
Norway
Prior art keywords
contaminated
indicate
soiled
measuring device
flammable state
Prior art date
Application number
NO971822A
Other languages
English (en)
Norwegian (no)
Other versions
NO971822D0 (no
NO971822L (no
Inventor
Lasse Leirfall
Original Assignee
Lasse Leirfall
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 Lasse Leirfall filed Critical Lasse Leirfall
Priority to NO971822A priority Critical patent/NO307675B1/no
Publication of NO971822D0 publication Critical patent/NO971822D0/no
Priority to DE69819484T priority patent/DE69819484T2/de
Priority to PCT/NO1998/000121 priority patent/WO1998048261A1/en
Priority to EP98917803A priority patent/EP0975952B1/de
Priority to US09/403,090 priority patent/US6850328B1/en
Priority to AT98917803T priority patent/ATE253726T1/de
Priority to AU70860/98A priority patent/AU7086098A/en
Publication of NO971822L publication Critical patent/NO971822L/no
Publication of NO307675B1 publication Critical patent/NO307675B1/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Processing Of Solid Wastes (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Liquid Crystal Substances (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
NO971822A 1997-04-18 1997-04-18 Anvendelse av en mÕleanordning til indikering av en forurenset, tilsmusset eller brannfarlig tilstand NO307675B1 (no)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NO971822A NO307675B1 (no) 1997-04-18 1997-04-18 Anvendelse av en mÕleanordning til indikering av en forurenset, tilsmusset eller brannfarlig tilstand
DE69819484T DE69819484T2 (de) 1997-04-18 1998-04-17 Überwachung von staubablagerung
PCT/NO1998/000121 WO1998048261A1 (en) 1997-04-18 1998-04-17 Monitoring dust deposition
EP98917803A EP0975952B1 (de) 1997-04-18 1998-04-17 Überwachung von staubablagerung
US09/403,090 US6850328B1 (en) 1997-04-18 1998-04-17 Monitoring dust deposition
AT98917803T ATE253726T1 (de) 1997-04-18 1998-04-17 Überwachung von staubablagerung
AU70860/98A AU7086098A (en) 1997-04-18 1998-04-17 Monitoring dust deposition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO971822A NO307675B1 (no) 1997-04-18 1997-04-18 Anvendelse av en mÕleanordning til indikering av en forurenset, tilsmusset eller brannfarlig tilstand

Publications (3)

Publication Number Publication Date
NO971822D0 NO971822D0 (no) 1997-04-18
NO971822L NO971822L (no) 1998-10-19
NO307675B1 true NO307675B1 (no) 2000-05-08

Family

ID=19900637

Family Applications (1)

Application Number Title Priority Date Filing Date
NO971822A NO307675B1 (no) 1997-04-18 1997-04-18 Anvendelse av en mÕleanordning til indikering av en forurenset, tilsmusset eller brannfarlig tilstand

Country Status (7)

Country Link
US (1) US6850328B1 (de)
EP (1) EP0975952B1 (de)
AT (1) ATE253726T1 (de)
AU (1) AU7086098A (de)
DE (1) DE69819484T2 (de)
NO (1) NO307675B1 (de)
WO (1) WO1998048261A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE521948C2 (sv) * 1998-12-17 2003-12-23 Act Ab Mätinstrument och förfarande för mätning av damm- och smutsbeläggningsgrad på en yta
US8570518B2 (en) * 2007-01-31 2013-10-29 Alverix, Inc. Methods and materials for detection of target species
US20090021270A1 (en) * 2007-07-19 2009-01-22 International Business Machines Corporation Capacitive detection of dust accumulation in a heat sink
US8422008B2 (en) * 2010-09-29 2013-04-16 General Electric Company Electrical machine component monitoring system and method
DE102014204883A1 (de) * 2014-03-17 2015-09-17 Siemens Aktiengesellschaft Vorrichtung und Verfahren zum Erfassen eines Grads einer Verschmutzung auf einer Oberfläche
WO2020010450A1 (en) * 2018-07-13 2020-01-16 9260-2366 Quebec Inc. System and method for detecting particle accumulation on a surface
US11300493B2 (en) 2019-12-31 2022-04-12 Industrial Intelligence, Inc. Continuous dust accumulation monitoring system
CA3259321A1 (en) * 2021-07-06 2023-01-12 Industrial Intelligence, Inc. SYSTEM, DEVICE AND METHOD FOR CONTINUOUS MONITORING OF DUST ACCUMULATION WITH DETECTION AND CLEANING OF DAMAGED OPTICS
US11841305B2 (en) 2021-08-25 2023-12-12 Industrial Intelligence, Inc. System, device and method for effective deployment of a dust accumulation sensor
WO2024073551A1 (en) * 2022-09-28 2024-04-04 Dust Company, Inc. Settled dust measurement system using photoresistors

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777173A (en) 1972-02-22 1973-12-04 Dyke Res Van Xerographic toner concentration measuring apparatus and method
US4402607A (en) * 1980-05-16 1983-09-06 Gca Corporation Automatic detector for microscopic dust on large-area, optically unpolished surfaces
US4598997A (en) 1982-02-15 1986-07-08 Rca Corporation Apparatus and method for detecting defects and dust on a patterned surface
KR860004321A (ko) * 1984-11-20 1986-06-20 윤영석 C0₂레이저(Laser)를 이용한 미러(Mirror)의 반사율 측정장치
US4815856A (en) * 1986-06-05 1989-03-28 Storage Technology Partners Ii Method and apparatus for measuring the absolute thickness of dust defocus layers
US4793710A (en) * 1987-06-09 1988-12-27 The United States Of America As Represented By The Secretary Of The Interior Method and apparatus for measuring surface density of explosive and inert dust in stratified layers
GB8722982D0 (en) * 1987-09-30 1987-11-04 Rood A P Measurement of airborne fibres
DE3923281A1 (de) 1989-07-14 1991-01-24 Bosch Gmbh Robert Schmutzsensor fuer kraftfahrzeug-scheiben
JPH0369029A (ja) * 1989-08-09 1991-03-25 Hitachi Ltd 光ディスク装置の除塵システム
DK163538C (da) * 1990-03-22 1992-08-03 Abk Bygge & Miljoeteknik Fremgangsmaade og maaleapparat til rengoeringskontrol
US5412221A (en) * 1994-04-26 1995-05-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Particle fallout/activity sensor
US5646734A (en) * 1995-08-28 1997-07-08 Hewlett-Packard Company Method and apparatus for independently measuring the thickness and index of refraction of films using low coherence reflectometry
JP3384927B2 (ja) * 1996-04-25 2003-03-10 古河電気工業株式会社 透光性長尺体欠陥検出装置

Also Published As

Publication number Publication date
NO971822D0 (no) 1997-04-18
ATE253726T1 (de) 2003-11-15
US6850328B1 (en) 2005-02-01
DE69819484D1 (de) 2003-12-11
NO971822L (no) 1998-10-19
EP0975952B1 (de) 2003-11-05
EP0975952A1 (de) 2000-02-02
WO1998048261A1 (en) 1998-10-29
AU7086098A (en) 1998-11-13
DE69819484T2 (de) 2004-09-16

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Legal Events

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