JPS54141692A - Coal reflectance measuring apparatus - Google Patents

Coal reflectance measuring apparatus

Info

Publication number
JPS54141692A
JPS54141692A JP4962078A JP4962078A JPS54141692A JP S54141692 A JPS54141692 A JP S54141692A JP 4962078 A JP4962078 A JP 4962078A JP 4962078 A JP4962078 A JP 4962078A JP S54141692 A JPS54141692 A JP S54141692A
Authority
JP
Japan
Prior art keywords
optical fiber
light
photometric part
directional coupler
coal
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
JP4962078A
Other languages
Japanese (ja)
Other versions
JPS5761183B2 (en
Inventor
Tetsuya Sukai
Riichiro Kusaka
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP4962078A priority Critical patent/JPS54141692A/en
Publication of JPS54141692A publication Critical patent/JPS54141692A/en
Publication of JPS5761183B2 publication Critical patent/JPS5761183B2/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
    • G01N21/55—Specular reflectivity

Landscapes

  • Physics & Mathematics (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)

Abstract

PURPOSE:To measure quickly and easily, by using a cylindrical coal specimen which is rotated and fed straightly in the axial direction, utilizing the optical fiber as optical path, being equipped with a photometric part having directional coupler, photo detector and lens for imaging action. CONSTITUTION:By a first optical fiber 24, the light from a light source 27 is led into a directinal coupler 30. From the directional coupler 30 to a photometric part, and from the photometric part to a photo detector 29 through the directional coupler 30 and a third optical fiber 26, the reflected light is led by means of a second optical fiber 23. And a photometric part having a lens 22 for imaging action is provided between the second optical fiber 23 and a coal specimen 20. The second optical fiber 23 has a length to give a delay to the light to separate the radiation light from the reflected light, and the coal specimen is made in a cylindrical form so as to be rotated and fed straightly in the rotary axial direction. Thus constituted, quick and easy measurement may be realized.
JP4962078A 1978-04-26 1978-04-26 Coal reflectance measuring apparatus Granted JPS54141692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4962078A JPS54141692A (en) 1978-04-26 1978-04-26 Coal reflectance measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4962078A JPS54141692A (en) 1978-04-26 1978-04-26 Coal reflectance measuring apparatus

Publications (2)

Publication Number Publication Date
JPS54141692A true JPS54141692A (en) 1979-11-05
JPS5761183B2 JPS5761183B2 (en) 1982-12-23

Family

ID=12836268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4962078A Granted JPS54141692A (en) 1978-04-26 1978-04-26 Coal reflectance measuring apparatus

Country Status (1)

Country Link
JP (1) JPS54141692A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949852A (en) * 2010-07-30 2011-01-19 清华大学 Spectral standardization-based coal quality on-line detection method
CN107321646A (en) * 2017-07-26 2017-11-07 成都理工大学 Atomic ore separation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101949852A (en) * 2010-07-30 2011-01-19 清华大学 Spectral standardization-based coal quality on-line detection method
CN107321646A (en) * 2017-07-26 2017-11-07 成都理工大学 Atomic ore separation system

Also Published As

Publication number Publication date
JPS5761183B2 (en) 1982-12-23

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