WO2024097934A3 - Dual-mode counter of atmospheric cloud condensation nuclei and condensation nuclei - Google Patents

Dual-mode counter of atmospheric cloud condensation nuclei and condensation nuclei Download PDF

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Publication number
WO2024097934A3
WO2024097934A3 PCT/US2023/078602 US2023078602W WO2024097934A3 WO 2024097934 A3 WO2024097934 A3 WO 2024097934A3 US 2023078602 W US2023078602 W US 2023078602W WO 2024097934 A3 WO2024097934 A3 WO 2024097934A3
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WO
WIPO (PCT)
Prior art keywords
condensation nuclei
nuclei
dual
condensation
mode counter
Prior art date
Application number
PCT/US2023/078602
Other languages
French (fr)
Other versions
WO2024097934A2 (en
Inventor
Donald R. Huffman
Original Assignee
Arizona Board Of Regents On Behalf Of The University Of Arizona
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 Arizona Board Of Regents On Behalf Of The University Of Arizona filed Critical Arizona Board Of Regents On Behalf Of The University Of Arizona
Publication of WO2024097934A2 publication Critical patent/WO2024097934A2/en
Publication of WO2024097934A3 publication Critical patent/WO2024097934A3/en

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Classifications

    • 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
    • G01N15/1425—Optical investigation techniques, e.g. flow cytometry using an analyser being characterised by its control arrangement
    • 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
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G01N15/0227—Investigating particle size or size distribution by optical means using imaging; using holography
    • 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
    • G01N15/1429—Signal processing
    • G01N15/1433—Signal processing using image recognition
    • 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
    • G01N2015/0023—Investigating dispersion of liquids
    • G01N2015/0026—Investigating dispersion of liquids in gas, e.g. fog
    • 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
    • G01N15/02—Investigating particle size or size distribution
    • G01N2015/0294—Particle shape
    • 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
    • G01N2015/1486—Counting the particles
    • 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
    • G01N2015/1493—Particle size
    • 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
    • G01N2015/1497—Particle shape

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

A dual-mode apparatus configured to operate in each of the cloud-condensation-nuclei-counting regime and the condensation-nuclei-counting regime and methodology for measuring condensation nuclei with such apparatus. In a specific case, the counting procedure is effectuated with the use of simultaneous acquisition of optical images of nuclei contained in the chamber of the apparatus, which is devoid of use of registration of laser-light scattering.
PCT/US2023/078602 2022-11-03 2023-11-03 Dual-mode counter of atmospheric cloud condensation nuclei and condensation nuclei WO2024097934A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263422192P 2022-11-03 2022-11-03
US63/422,192 2022-11-03

Publications (2)

Publication Number Publication Date
WO2024097934A2 WO2024097934A2 (en) 2024-05-10
WO2024097934A3 true WO2024097934A3 (en) 2024-06-13

Family

ID=90931666

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/078602 WO2024097934A2 (en) 2022-11-03 2023-11-03 Dual-mode counter of atmospheric cloud condensation nuclei and condensation nuclei

Country Status (1)

Country Link
WO (1) WO2024097934A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506994A (en) * 1982-09-20 1985-03-26 General Signal Corporation Dew point measurement and time trend analysis
US6330060B1 (en) * 1997-10-10 2001-12-11 California Institute Of Technology Cloud condensation nucleus spectrometer
US20060126056A1 (en) * 2002-09-18 2006-06-15 Roberts Gregory C Stream-wise thermal gradient cloud condensation nuclei chamber

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506994A (en) * 1982-09-20 1985-03-26 General Signal Corporation Dew point measurement and time trend analysis
US6330060B1 (en) * 1997-10-10 2001-12-11 California Institute Of Technology Cloud condensation nucleus spectrometer
US20020046595A1 (en) * 1997-10-10 2002-04-25 California Institute Of Technology, A California Corporation Techniques for characterizing cloud condensation nuclei
US20060126056A1 (en) * 2002-09-18 2006-06-15 Roberts Gregory C Stream-wise thermal gradient cloud condensation nuclei chamber

Also Published As

Publication number Publication date
WO2024097934A2 (en) 2024-05-10

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