JPS6428543A - Quality judging apparatus for unhulled rice - Google Patents

Quality judging apparatus for unhulled rice

Info

Publication number
JPS6428543A
JPS6428543A JP18433687A JP18433687A JPS6428543A JP S6428543 A JPS6428543 A JP S6428543A JP 18433687 A JP18433687 A JP 18433687A JP 18433687 A JP18433687 A JP 18433687A JP S6428543 A JPS6428543 A JP S6428543A
Authority
JP
Japan
Prior art keywords
light
particle
diffusively
unhulled rice
damaged
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
JP18433687A
Other languages
Japanese (ja)
Inventor
Michio Kawanaka
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.)
Shizuoka Seiki Co Ltd
Original Assignee
Shizuoka Seiki Co 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 Shizuoka Seiki Co Ltd filed Critical Shizuoka Seiki Co Ltd
Priority to JP18433687A priority Critical patent/JPS6428543A/en
Publication of JPS6428543A publication Critical patent/JPS6428543A/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
    • G01N21/47—Scattering, i.e. diffuse reflection

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 achieve a higher judging accuracy, by determining the sum of the quantity of diffusively transmitted light, the quantity of diffusively reflected light as obtained when an unhulled rice is determined to be a damaged particle and quantities of arbitrary lights with two wavelengths in the quantity of diffusively reflected light to judge the rice to be a black-based colored particle when the sum thus obtained is below a specified value. CONSTITUTION:A detecting section irradiates each particle of a sample unhulled rice 8 with light to detect the quantity T of diffusively transmitted light, the quantity R of diffusively reflected light and quantities Red and Gen of arbitrary lights with two wavelengths in the quantity R of light. These detection values are stored into a RAM of a decision control section 16. The decision section 16 judges the unhulled rice to be a damaged particle when the quantity of light ratio (Red)/(Gen) is below a specified value and the quantity T of light and the quantity R of light as obtained when the sample is determined to be a damaged particle and quantities Red and Gen of lights and when the sum obtained is below a specified value, the sample is determined to be a black-based colored particle. This enables selection and separation of a black-based colored particle mixed into a decision zone of damaged particle thereby achieving a higher judging accuracy.
JP18433687A 1987-07-23 1987-07-23 Quality judging apparatus for unhulled rice Pending JPS6428543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18433687A JPS6428543A (en) 1987-07-23 1987-07-23 Quality judging apparatus for unhulled rice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18433687A JPS6428543A (en) 1987-07-23 1987-07-23 Quality judging apparatus for unhulled rice

Publications (1)

Publication Number Publication Date
JPS6428543A true JPS6428543A (en) 1989-01-31

Family

ID=16151522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18433687A Pending JPS6428543A (en) 1987-07-23 1987-07-23 Quality judging apparatus for unhulled rice

Country Status (1)

Country Link
JP (1) JPS6428543A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04229714A (en) * 1990-04-25 1992-08-19 American Teleph & Telegr Co <Att> Integrated circuit having buffer
US5188425A (en) * 1990-04-03 1993-02-23 B.S.R.D. Limited Pretensioning latching mechanism
US5256886A (en) * 1991-04-30 1993-10-26 E. I. Du Pont De Nemours And Company Apparatus for optically detecting contamination in particles of low optical-loss material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188425A (en) * 1990-04-03 1993-02-23 B.S.R.D. Limited Pretensioning latching mechanism
JPH04229714A (en) * 1990-04-25 1992-08-19 American Teleph & Telegr Co <Att> Integrated circuit having buffer
US5256886A (en) * 1991-04-30 1993-10-26 E. I. Du Pont De Nemours And Company Apparatus for optically detecting contamination in particles of low optical-loss material

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