ATE167572T1 - Flüssigkeitsverschmutzungfühler - Google Patents

Flüssigkeitsverschmutzungfühler

Info

Publication number
ATE167572T1
ATE167572T1 AT93302751T AT93302751T ATE167572T1 AT E167572 T1 ATE167572 T1 AT E167572T1 AT 93302751 T AT93302751 T AT 93302751T AT 93302751 T AT93302751 T AT 93302751T AT E167572 T1 ATE167572 T1 AT E167572T1
Authority
AT
Austria
Prior art keywords
light
light beam
chamber
directing
fluid
Prior art date
Application number
AT93302751T
Other languages
English (en)
Inventor
Martin Terence Cole
Original Assignee
Vision Systems Limited
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 Vision Systems Limited filed Critical Vision Systems Limited
Application granted granted Critical
Publication of ATE167572T1 publication Critical patent/ATE167572T1/de

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N2021/0378—Shapes
    • G01N2021/0382—Frustoconical, tapered cell
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/05—Flow-through cuvettes
    • G01N2021/052—Tubular type; cavity type; multireflective
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N2021/4704—Angular selective
    • G01N2021/4707—Forward scatter; Low angle scatter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N2021/4704—Angular selective
    • G01N2021/4711—Multiangle measurement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/064—Stray light conditioning
    • G01N2201/0642—Light traps; baffles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Optical Measuring Cells (AREA)
AT93302751T 1992-05-18 1993-04-07 Flüssigkeitsverschmutzungfühler ATE167572T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/884,398 US5392114A (en) 1988-03-30 1992-05-18 Fluid pollution monitor

Publications (1)

Publication Number Publication Date
ATE167572T1 true ATE167572T1 (de) 1998-07-15

Family

ID=25384539

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93302751T ATE167572T1 (de) 1992-05-18 1993-04-07 Flüssigkeitsverschmutzungfühler

Country Status (6)

Country Link
US (1) US5392114A (de)
EP (1) EP0571077B1 (de)
JP (1) JPH0634540A (de)
AT (1) ATE167572T1 (de)
AU (1) AU663758C (de)
DE (1) DE69319184T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08233736A (ja) * 1995-02-27 1996-09-13 Nohmi Bosai Ltd 微粒子検出センサ
AU719048B2 (en) 1995-04-06 2000-05-04 Alfa Laval Agri Ab Method and apparatus for quantitative particle determination in fluids
US5926098A (en) * 1996-10-24 1999-07-20 Pittway Corporation Aspirated detector
CA2228335A1 (en) * 1997-02-04 1998-08-04 Edward Dauskurdas Photodetector with coated reflector
US6465802B1 (en) * 1999-03-18 2002-10-15 Rion Co., Ltd. Particle measurement apparatus flow cell useful for sample fluids having different refractive indexes
AUPQ553800A0 (en) 2000-02-10 2000-03-02 Cole, Martin Terence Improvements relating to smoke detectors particularily duct monitored smoke detectors
GB2389176C (en) * 2002-05-27 2011-07-27 Kidde Ip Holdings Ltd Smoke detector
CN100397065C (zh) * 2003-08-14 2008-06-25 中国科学院寒区旱区环境与工程研究所 沙尘水平通量测量器
KR101069042B1 (ko) 2003-10-23 2011-09-29 테렌스 콜 마틴 유동체가 제1 속도로 통과하여 흐르는 입구를 갖는 입자탐지기를 위한 챔버 구성
FI20060495A0 (fi) * 2006-05-19 2006-05-19 Wallac Oy Järjestely ja menetelmä kohteen valaisemiseksi
US7656302B2 (en) * 2006-11-20 2010-02-02 Honeywell International Inc. Sensing chamber with enhanced ambient atmospheric flow
DE102007045018B4 (de) 2007-09-20 2011-02-17 Perkinelmer Optoelectronics Gmbh & Co.Kg Strahlungsleitvorrichtung für einen Detektor, Streustrahlungsdetektor
US8804119B2 (en) 2008-06-10 2014-08-12 Xtralis Technologies Ltd Particle detection
AU2010242552B2 (en) 2009-05-01 2015-10-29 Garrett Thermal Systems Limited Improvements to particle detectors
GB201000756D0 (en) 2010-01-18 2010-03-03 Gas Sensing Solutions Ltd Gas sensor with radiation guide
CN105277474A (zh) * 2014-11-17 2016-01-27 北京至感传感器技术研究院有限公司 粉尘颗粒检测设备
CN107966392A (zh) * 2017-11-28 2018-04-27 苏州佑克骨传导科技有限公司 一种pm2.5检测播报装置
CN109596466A (zh) * 2018-12-25 2019-04-09 复旦大学 一种模拟生物质露天燃烧且可测量气态污染物浓度的大气气溶胶烟雾系统
CN111678614B (zh) * 2020-06-22 2021-10-08 威胜集团有限公司 环境温度探测方法、装置及存储介质
US20240344974A1 (en) * 2023-04-13 2024-10-17 Honeywell International Inc. Apparatus and method for sensing gas and particulate matter using an optical beam

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231748A (en) * 1961-10-30 1966-01-25 Fyr Fyter Co Smoke detector
US3515482A (en) * 1967-06-27 1970-06-02 Us Navy Aerosol photometer with improved electronic circuitry
US3756720A (en) * 1972-01-27 1973-09-04 Environment One Corp Portable photographic atmospheric particle detector
JPS5430885A (en) * 1977-08-12 1979-03-07 Matsushita Electric Ind Co Ltd Turbidity measuring apparatus
SE428972B (sv) * 1979-03-07 1983-08-01 Svenska Utvecklings Ab Anordning for detektering av forekommande av svevande, fasta eller vetskeformade partiklar i en gas
EP0407429A4 (en) * 1988-03-30 1991-08-21 Martin Terence Cole Fluid pollution monitor
GB2231951A (en) * 1989-03-02 1990-11-28 I E I Detection apparatus and methods
JP2740262B2 (ja) * 1989-05-16 1998-04-15 消防庁長官 粒径計測型煙感知器
JP2820576B2 (ja) * 1992-09-16 1998-11-05 三菱電機株式会社 内燃機関用点火装置

Also Published As

Publication number Publication date
EP0571077A3 (de) 1994-01-05
EP0571077B1 (de) 1998-06-17
JPH0634540A (ja) 1994-02-08
DE69319184T2 (de) 1999-02-25
DE69319184D1 (de) 1998-07-23
AU663758C (en) 2001-12-06
EP0571077A2 (de) 1993-11-24
AU3400593A (en) 1993-05-06
US5392114A (en) 1995-02-21
AU663758B2 (en) 1995-10-19

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