WO2018001568A3 - A precipitation sensor - Google Patents

A precipitation sensor Download PDF

Info

Publication number
WO2018001568A3
WO2018001568A3 PCT/EP2017/025111 EP2017025111W WO2018001568A3 WO 2018001568 A3 WO2018001568 A3 WO 2018001568A3 EP 2017025111 W EP2017025111 W EP 2017025111W WO 2018001568 A3 WO2018001568 A3 WO 2018001568A3
Authority
WO
WIPO (PCT)
Prior art keywords
electromagnetic radiation
precipitation
sensor
fall detection
radiation source
Prior art date
Application number
PCT/EP2017/025111
Other languages
French (fr)
Other versions
WO2018001568A2 (en
Inventor
Robin Bacon
Original Assignee
Gill Instruments 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 Gill Instruments Limited filed Critical Gill Instruments Limited
Publication of WO2018001568A2 publication Critical patent/WO2018001568A2/en
Publication of WO2018001568A3 publication Critical patent/WO2018001568A3/en

Links

Classifications

    • 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
    • G01N21/538—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke for determining atmospheric attenuation and visibility
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1456—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
    • G01N15/1459—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals the analysis being performed on a sample stream
    • 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
    • G01N21/532—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke with measurement of scattering and transmission
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/14—Rainfall or precipitation gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/0042—Investigating dispersion of solids
    • G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N2015/1027—Determining speed or velocity of a particle
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Atmospheric Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)

Abstract

A precipitation sensor (10) comprising a first electromagnetic radiation source (12) and an electromagnetic radiation detector (16). The said first electromagnetic radiation source (12) is oriented to direct electromagnetic radiation towards the electromagnetic radiation detector (16) via a precipitation free-fall detection region (14) when the sensor (10) is in use. The precipitation sensor (10) further comprises at least one further electromagnetic radiation source (20) oriented to direct electromagnetic radiation towards the said precipitation free-fall detection region (14) along a direction which is at a given scattering angle to the direction of light from the said first electromagnetic radiation source (12). Also, a precipitation sensor (10) comprising at least two electromagnetic radiation sources (12, 22) oriented to direct electromagnetic radiation towards respective precipitation free-fall detection regions (14) located one above the other when the sensor (10) is in use, and at least two respective electromagnetic radiation detectors (16, 24) each located to receive such radiation which was emitted by the associated electromagnetic radiation source (12, 22) and which entered the associated precipitation free-fall detection region (14) when the sensor (10) is in use.
PCT/EP2017/025111 2016-06-30 2017-05-05 A precipitation sensor WO2018001568A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1611419.1A GB201611419D0 (en) 2016-06-30 2016-06-30 A precipitation sensor
GB1611419.1 2016-06-30

Publications (2)

Publication Number Publication Date
WO2018001568A2 WO2018001568A2 (en) 2018-01-04
WO2018001568A3 true WO2018001568A3 (en) 2018-02-22

Family

ID=56891405

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/025111 WO2018001568A2 (en) 2016-06-30 2017-05-05 A precipitation sensor

Country Status (2)

Country Link
GB (1) GB201611419D0 (en)
WO (1) WO2018001568A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108896457B (en) * 2018-05-11 2020-12-08 博兴兴博投资有限公司 Dust explosion-proof atmosphere detection device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1184024A (en) * 1997-09-09 1999-03-26 Hitachi Cable Ltd Snowfall sensor
JP2000275357A (en) * 1999-03-23 2000-10-06 Nagoya Electric Works Co Ltd Rainfall/snowfall situation detection method and device
US20040161165A1 (en) * 2001-04-25 2004-08-19 Amnis Corporation Method and apparatus for correcting crosstalk and spatial resolution for multichannel imaging
US7122820B2 (en) * 2001-04-25 2006-10-17 Vaisala Impulsphysik Gmbh Method for determining visibility, amount of precipitation and type of precipitation
US20070132599A1 (en) * 2005-11-19 2007-06-14 Dufaux Douglas P Apparatus and method for measuring precipitation
US20090122315A1 (en) * 2007-05-15 2009-05-14 Waters Investments Limited Evaporative light scattering device and methods of use thereof
JP2010032557A (en) * 2009-11-18 2010-02-12 Ccs Inc Weather measurement apparatus
KR101487745B1 (en) * 2014-05-12 2015-01-29 다온 주식회사 Snowfall measurement device using light and camera

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1184024A (en) * 1997-09-09 1999-03-26 Hitachi Cable Ltd Snowfall sensor
JP2000275357A (en) * 1999-03-23 2000-10-06 Nagoya Electric Works Co Ltd Rainfall/snowfall situation detection method and device
US20040161165A1 (en) * 2001-04-25 2004-08-19 Amnis Corporation Method and apparatus for correcting crosstalk and spatial resolution for multichannel imaging
US7122820B2 (en) * 2001-04-25 2006-10-17 Vaisala Impulsphysik Gmbh Method for determining visibility, amount of precipitation and type of precipitation
US20070132599A1 (en) * 2005-11-19 2007-06-14 Dufaux Douglas P Apparatus and method for measuring precipitation
US20090122315A1 (en) * 2007-05-15 2009-05-14 Waters Investments Limited Evaporative light scattering device and methods of use thereof
JP2010032557A (en) * 2009-11-18 2010-02-12 Ccs Inc Weather measurement apparatus
KR101487745B1 (en) * 2014-05-12 2015-01-29 다온 주식회사 Snowfall measurement device using light and camera

Also Published As

Publication number Publication date
WO2018001568A2 (en) 2018-01-04
GB201611419D0 (en) 2016-08-17

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