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JPS5757239A - Detector for concentration of powder material - Google Patents

Detector for concentration of powder material

Info

Publication number
JPS5757239A
JPS5757239A JP55133435A JP13343580A JPS5757239A JP S5757239 A JPS5757239 A JP S5757239A JP 55133435 A JP55133435 A JP 55133435A JP 13343580 A JP13343580 A JP 13343580A JP S5757239 A JPS5757239 A JP S5757239A
Authority
JP
Japan
Prior art keywords
infrared ray
powder material
detector
concentration
20mum
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.)
Pending
Application number
JP55133435A
Other languages
Japanese (ja)
Inventor
Noriyuki Kawada
Yoshimine Hebihami
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP55133435A priority Critical patent/JPS5757239A/en
Publication of JPS5757239A publication Critical patent/JPS5757239A/en
Pending 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
    • G01N21/25—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
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

PURPOSE:To measure continuously and accurately the concentration of powder material even under a condition of higher temperature by installing an infrared ray emitter and a detector so as to put the powder material flowing between them and by measuring the amount of the transmitted infrared ray. CONSTITUTION:A heating unit 3 for emitting an infrared ray and an infrared ray detector 4 are installed through protective glass 5, putting powder material 1 in a duct 2 between them. The heating unit 3 is heated to sufficiently higher temperature than that of the powder material 1 and emits an infrared ray with wavelength of 1-20mum. The protective glass 5 is one that transmits sufficiently the infrared ray with wavelength of 1-20mum, and the infrared ray detector 4 detects the intensity of the infrared ray of 1-20mum. The infrared ray emitted from the heating unit 3 transmits the protective glass 5, and is scattered, absorbed and attenuated by the powder material 1 and lastly enters the infrared ray detector 4. From the intensity of the infrared ray detected in this way, concentration of the powder material 1 is measured.
JP55133435A 1980-09-25 1980-09-25 Detector for concentration of powder material Pending JPS5757239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55133435A JPS5757239A (en) 1980-09-25 1980-09-25 Detector for concentration of powder material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55133435A JPS5757239A (en) 1980-09-25 1980-09-25 Detector for concentration of powder material

Publications (1)

Publication Number Publication Date
JPS5757239A true JPS5757239A (en) 1982-04-06

Family

ID=15104701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55133435A Pending JPS5757239A (en) 1980-09-25 1980-09-25 Detector for concentration of powder material

Country Status (1)

Country Link
JP (1) JPS5757239A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62119434A (en) * 1985-11-20 1987-05-30 Fujitsu Ltd Dust monitoring device in gas piping
JPS62145140A (en) * 1985-12-19 1987-06-29 Nippon Steel Corp Particle size measurement device for falling granular objects
JP7170954B1 (en) * 2022-06-01 2022-11-14 三菱電機株式会社 Particle measurement sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62119434A (en) * 1985-11-20 1987-05-30 Fujitsu Ltd Dust monitoring device in gas piping
JPH0519932B2 (en) * 1985-11-20 1993-03-18 Fujitsu Ltd
JPS62145140A (en) * 1985-12-19 1987-06-29 Nippon Steel Corp Particle size measurement device for falling granular objects
JP7170954B1 (en) * 2022-06-01 2022-11-14 三菱電機株式会社 Particle measurement sensor
WO2023233562A1 (en) * 2022-06-01 2023-12-07 三菱電機株式会社 Fine particle measurement sensor

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