JPS55131749A - Method of quantitatively measuring floating particle - Google Patents

Method of quantitatively measuring floating particle

Info

Publication number
JPS55131749A
JPS55131749A JP3917879A JP3917879A JPS55131749A JP S55131749 A JPS55131749 A JP S55131749A JP 3917879 A JP3917879 A JP 3917879A JP 3917879 A JP3917879 A JP 3917879A JP S55131749 A JPS55131749 A JP S55131749A
Authority
JP
Japan
Prior art keywords
wavelength
light
particle diameter
diameter distribution
damping quantity
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.)
Granted
Application number
JP3917879A
Other languages
Japanese (ja)
Other versions
JPS6319810B2 (en
Inventor
Akira Nishitsuji
Kiyomi Hatakeyama
Akio Ito
Mitsuo Hoshiyama
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.)
HOKKAIDO DAIGAKU
HOKKAIDO DAIGAKUCHIYOU
Original Assignee
HOKKAIDO DAIGAKU
HOKKAIDO DAIGAKUCHIYOU
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 HOKKAIDO DAIGAKU, HOKKAIDO DAIGAKUCHIYOU filed Critical HOKKAIDO DAIGAKU
Priority to JP3917879A priority Critical patent/JPS55131749A/en
Publication of JPS55131749A publication Critical patent/JPS55131749A/en
Publication of JPS6319810B2 publication Critical patent/JPS6319810B2/ja
Granted legal-status Critical Current

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
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity

Abstract

PURPOSE:To make it possible to quantitatively measure floating particles in a fluid by selecting a wavelength not directly affected by the particle diameter distribution of floating particles as the wavelength of an electromagnetic wave. CONSTITUTION:The damping quantity of light by flying ashes in a light permeating method depends greatly upon the particle diameter distribution, and when the wavelength of light rays used is changed, there exists an optimum wavelength substantially unrelated to the particle diameter distribution. Accordingly, from the floating particles those having large particle diameters are removed. Then, the wavelength of light is changed to obtain the maximum value and minimum value of the damping quantity. By using these values the ratio between the maximum damping quantity and the minimum damping quantity of each wavelength to obtain the wavelength characteristic. In this case, although four minimum values exist, those of optimum wavelength of the ratio close to 1 are preferable. Consequently, if the wavelength a is adapted, the maximum error is suppressed to 18% or less, thus the reliability of the measurement being greatly improved and the continuous measurement being possible.
JP3917879A 1979-03-31 1979-03-31 Method of quantitatively measuring floating particle Granted JPS55131749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3917879A JPS55131749A (en) 1979-03-31 1979-03-31 Method of quantitatively measuring floating particle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3917879A JPS55131749A (en) 1979-03-31 1979-03-31 Method of quantitatively measuring floating particle

Publications (2)

Publication Number Publication Date
JPS55131749A true JPS55131749A (en) 1980-10-13
JPS6319810B2 JPS6319810B2 (en) 1988-04-25

Family

ID=12545853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3917879A Granted JPS55131749A (en) 1979-03-31 1979-03-31 Method of quantitatively measuring floating particle

Country Status (1)

Country Link
JP (1) JPS55131749A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6298236A (en) * 1985-10-25 1987-05-07 Sumitomo Metal Ind Ltd Method and device for measuring dust concentration
JPH02143140A (en) * 1988-11-24 1990-06-01 Motoji Jinbo Method for measuring grain size
JP2008526398A (en) * 2005-01-12 2008-07-24 ジボダン エス エー Volatile liquid sprayer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6298236A (en) * 1985-10-25 1987-05-07 Sumitomo Metal Ind Ltd Method and device for measuring dust concentration
JPH02143140A (en) * 1988-11-24 1990-06-01 Motoji Jinbo Method for measuring grain size
JP2008526398A (en) * 2005-01-12 2008-07-24 ジボダン エス エー Volatile liquid sprayer

Also Published As

Publication number Publication date
JPS6319810B2 (en) 1988-04-25

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