CA1284875C - Method for detecting dripping droplet - Google Patents

Method for detecting dripping droplet

Info

Publication number
CA1284875C
CA1284875C CA000542097A CA542097A CA1284875C CA 1284875 C CA1284875 C CA 1284875C CA 000542097 A CA000542097 A CA 000542097A CA 542097 A CA542097 A CA 542097A CA 1284875 C CA1284875 C CA 1284875C
Authority
CA
Canada
Prior art keywords
light
droplet
scattered
photosensor
reflected
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
CA000542097A
Other languages
English (en)
French (fr)
Inventor
Ken-Ichi Hayashi
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.)
Japan Atomic Energy Agency
Original Assignee
Doryokuro Kakunenryo Kaihatsu Jigyodan
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 Doryokuro Kakunenryo Kaihatsu Jigyodan filed Critical Doryokuro Kakunenryo Kaihatsu Jigyodan
Application granted granted Critical
Publication of CA1284875C publication Critical patent/CA1284875C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G01N15/02—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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/38—Investigating fluid-tightness of structures by using light
    • 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
    • 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
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA000542097A 1986-07-14 1987-07-13 Method for detecting dripping droplet Expired - Lifetime CA1284875C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61165111A JPS6319506A (ja) 1986-07-14 1986-07-14 滴下液滴の検出方法
JP61-165111 1986-07-14

Publications (1)

Publication Number Publication Date
CA1284875C true CA1284875C (en) 1991-06-18

Family

ID=15806112

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000542097A Expired - Lifetime CA1284875C (en) 1986-07-14 1987-07-13 Method for detecting dripping droplet

Country Status (3)

Country Link
US (1) US4771181A (en])
JP (1) JPS6319506A (en])
CA (1) CA1284875C (en])

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859861A (en) * 1988-05-16 1989-08-22 Becton, Dickinson And Company Measuring curvature of transparent or translucent material
JPH0287045A (ja) * 1988-09-26 1990-03-27 Power Reactor & Nuclear Fuel Dev Corp 液中気体の検出方法
FR2664698B1 (fr) * 1990-07-12 1994-03-25 Lecoffre Yves Procede et dispositif pour la determination de la concentration locale en microbulles d'un liquide ou en goutelettes d'un fluide, et de la dimension de celles-ci.
US5120979A (en) * 1991-03-25 1992-06-09 Becton, Dickinson And Company Apparatus and method for analysis of a sample medium in a gap between a tube and a float
US5859705A (en) * 1993-05-26 1999-01-12 The Dow Chemical Company Apparatus and method for using light scattering to determine the size of particles virtually independent of refractive index
US6259370B1 (en) * 1999-08-03 2001-07-10 Technical & Try Co., Ltd. Leak sensor
JP3339024B2 (ja) * 2000-01-07 2002-10-28 学校法人 慶應義塾 微小気泡及び微小液滴の径及び分布の測定方法及び微小気泡及び微小液滴の径及び分布の測定光学系
CN102425993B (zh) * 2011-09-20 2013-04-10 北京航空航天大学 水滴流场离散截面水滴平均直径变化曲线测量方法及装置
CN102494622B (zh) * 2011-12-09 2013-07-24 北京航空航天大学 一种水滴直径测量方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807870A (en) * 1972-05-22 1974-04-30 G Kalman Apparatus for measuring the distance between surfaces of transparent material
US4595291A (en) * 1982-10-15 1986-06-17 Tokyo Shibaura Denki Kabushiki Kaisha Particle diameter measuring device
US4676638A (en) * 1983-03-31 1987-06-30 Kabushiki Kaisha Tokai Rika Denki Seisakusho Light-transmissible foreign object sensor
WO1984004592A1 (en) * 1983-05-18 1984-11-22 Dantec Elektronik Med A laser-doppler-apparatus for determining the size of moving spherical particles in a fluid flow
JPS61120005A (ja) * 1984-11-16 1986-06-07 Fuji Electric Co Ltd 円筒状プラスチツクフイルムの径測定装置
US4709156A (en) * 1985-11-27 1987-11-24 Ex-Cell-O Corporation Method and apparatus for inspecting a surface

Also Published As

Publication number Publication date
JPS6319506A (ja) 1988-01-27
US4771181A (en) 1988-09-13
JPH0444204B2 (en]) 1992-07-21

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