JPS57211071A - Testing device with flying granule for coating film - Google Patents

Testing device with flying granule for coating film

Info

Publication number
JPS57211071A
JPS57211071A JP9570581A JP9570581A JPS57211071A JP S57211071 A JPS57211071 A JP S57211071A JP 9570581 A JP9570581 A JP 9570581A JP 9570581 A JP9570581 A JP 9570581A JP S57211071 A JPS57211071 A JP S57211071A
Authority
JP
Japan
Prior art keywords
granule
detecting
diamond granule
detecting parts
diamond
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
JP9570581A
Other languages
Japanese (ja)
Inventor
Ban Suga
Hiroshi Koyama
Tsuneo Sakauchi
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.)
Suga Test Instruments Co Ltd
Nissan Motor Co Ltd
Original Assignee
Suga Test Instruments Co Ltd
Nissan Motor 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 Suga Test Instruments Co Ltd, Nissan Motor Co Ltd filed Critical Suga Test Instruments Co Ltd
Priority to JP9570581A priority Critical patent/JPS57211071A/en
Publication of JPS57211071A publication Critical patent/JPS57211071A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To detect assuredly the diamond granule with no deterioration of S/N, by setting two pairs of projectors and photodetectors to a guide pipe functioning as a guide path of the diamond granule and detecting the pass of the diamond granule. CONSTITUTION:Two detecting parts are provided with a prescribed space to a guide pipe 3 functioning as a guide path of the diamond granule. Each detecting parts is formed with a transparent matter, and at the same time a disk-shape optical device is set outside the detecting part. When the diamond granule 1 having a surface 25 colored black passes the detecting parts of the pipe 3, either one or both of the light beams of the projectors 21 and 22 are cut off. Thus the quantity of light received at the photodetectors 23 and 24 varies. Then the speed is detected for the granule 1 from the space between the changed signals of the detectors 23 and 24 at the two detecting parts.
JP9570581A 1981-06-19 1981-06-19 Testing device with flying granule for coating film Pending JPS57211071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9570581A JPS57211071A (en) 1981-06-19 1981-06-19 Testing device with flying granule for coating film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9570581A JPS57211071A (en) 1981-06-19 1981-06-19 Testing device with flying granule for coating film

Publications (1)

Publication Number Publication Date
JPS57211071A true JPS57211071A (en) 1982-12-24

Family

ID=14144916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9570581A Pending JPS57211071A (en) 1981-06-19 1981-06-19 Testing device with flying granule for coating film

Country Status (1)

Country Link
JP (1) JPS57211071A (en)

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