JPS57153249A - Discriminating method for grain quality of unpolished rice - Google Patents

Discriminating method for grain quality of unpolished rice

Info

Publication number
JPS57153249A
JPS57153249A JP3775881A JP3775881A JPS57153249A JP S57153249 A JPS57153249 A JP S57153249A JP 3775881 A JP3775881 A JP 3775881A JP 3775881 A JP3775881 A JP 3775881A JP S57153249 A JPS57153249 A JP S57153249A
Authority
JP
Japan
Prior art keywords
grain
unpolished rice
light
signal
counter
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
JP3775881A
Other languages
Japanese (ja)
Inventor
Fumio Kutsukake
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.)
KETSUTO KAGAKU KENKYUSHO KK
Kett Electric Laboratory
Original Assignee
KETSUTO KAGAKU KENKYUSHO KK
Kett Electric Laboratory
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 KETSUTO KAGAKU KENKYUSHO KK, Kett Electric Laboratory filed Critical KETSUTO KAGAKU KENKYUSHO KK
Priority to JP3775881A priority Critical patent/JPS57153249A/en
Publication of JPS57153249A publication Critical patent/JPS57153249A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To discriminate either a normal grain or an inferior grain in unpolished rice accurately, by irradiating light having an optional wavelength to every one grain of a prescribed quantity of the unpolished rice and comparing the transmissivity of the light with a threshold level. CONSTITUTION:One grain of unpolished rice is positioned at an opening 3 of a light shielding board 2 and is moved to the arrow mark direction and then, is irradiated by the light of lambda=670nm wavelength from a light emitting element 4. The output of a photodetecting element 5 received the light which is passed through the unpolished rice is sent to a signal selector 8 through an amplifier 6, an effective signal selector 7 and is compared with a threshold level signal Tt from a threshold level set device 9. When an electric signal is larger than the signal Tt, the grain is decided as a normal grain and the signal is sent to a normal grain counter 10. Further, when a total number counter 11 attains a prescribed number, the counted number of the counter 10 is inputted into the counter 11 by a computer 12 and the mixed percentage of an inferior grain in the unpolished rice is counted and then, is displayed on a display device 13.
JP3775881A 1981-03-18 1981-03-18 Discriminating method for grain quality of unpolished rice Pending JPS57153249A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3775881A JPS57153249A (en) 1981-03-18 1981-03-18 Discriminating method for grain quality of unpolished rice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3775881A JPS57153249A (en) 1981-03-18 1981-03-18 Discriminating method for grain quality of unpolished rice

Publications (1)

Publication Number Publication Date
JPS57153249A true JPS57153249A (en) 1982-09-21

Family

ID=12506360

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3775881A Pending JPS57153249A (en) 1981-03-18 1981-03-18 Discriminating method for grain quality of unpolished rice

Country Status (1)

Country Link
JP (1) JPS57153249A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6428542A (en) * 1987-07-23 1989-01-31 Shizuoka Seiki Co Ltd Quality decision apparatus for unhulled rice
US5135114A (en) * 1988-08-11 1992-08-04 Satake Engineering Co., Ltd. Apparatus for evaluating the grade of rice grains
US5245188A (en) * 1988-08-11 1993-09-14 Satake Engineering Co., Ltd. Apparatus for evaluating the grade of rice grains
JPH07140134A (en) * 1994-05-09 1995-06-02 Satake Eng Co Ltd Apparatus for measuring content of component of rice

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5478191A (en) * 1977-12-02 1979-06-22 Omron Tateisi Electronics Co Detecting method of defect of rice grains
JPS5478190A (en) * 1977-12-02 1979-06-22 Omron Tateisi Electronics Co Detecting method of defect of rice grains

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5478191A (en) * 1977-12-02 1979-06-22 Omron Tateisi Electronics Co Detecting method of defect of rice grains
JPS5478190A (en) * 1977-12-02 1979-06-22 Omron Tateisi Electronics Co Detecting method of defect of rice grains

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6428542A (en) * 1987-07-23 1989-01-31 Shizuoka Seiki Co Ltd Quality decision apparatus for unhulled rice
US5135114A (en) * 1988-08-11 1992-08-04 Satake Engineering Co., Ltd. Apparatus for evaluating the grade of rice grains
US5245188A (en) * 1988-08-11 1993-09-14 Satake Engineering Co., Ltd. Apparatus for evaluating the grade of rice grains
JPH07140134A (en) * 1994-05-09 1995-06-02 Satake Eng Co Ltd Apparatus for measuring content of component of rice

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