JPS57163805A - Method and device for inspecting thickness of tablet - Google Patents

Method and device for inspecting thickness of tablet

Info

Publication number
JPS57163805A
JPS57163805A JP56048478A JP4847881A JPS57163805A JP S57163805 A JPS57163805 A JP S57163805A JP 56048478 A JP56048478 A JP 56048478A JP 4847881 A JP4847881 A JP 4847881A JP S57163805 A JPS57163805 A JP S57163805A
Authority
JP
Japan
Prior art keywords
circuit
terminal
signal
tablet
delay
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
JP56048478A
Other languages
Japanese (ja)
Other versions
JPS6246803B2 (en
Inventor
Masahiro Kishi
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP56048478A priority Critical patent/JPS57163805A/en
Publication of JPS57163805A publication Critical patent/JPS57163805A/en
Publication of JPS6246803B2 publication Critical patent/JPS6246803B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/66—Trinkets, e.g. shirt buttons or jewellery items

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To inspect the thickness of a tablet with high precision and at low cost by photographing the head or tail of a tablet by a TV camera and processing the obtained image pickup signal during one horizontal scanning period. CONSTITUTION:A signal obtained by photographing a tablet 12 by a TV camera 1 right over it is amplified by an amplifying circuit 2 and applied to one terminal of a differential amplifying circuit 4 and a delay circuit 3, a signal from which is applied to the other terminal of the circuit 4. Then, the circuit 4 finds a difference between both inputs to perform the 1st delay differentiation. The resulting signal is applied to one terminal of a differential amplifying circuit 6 and a delay circuit, a signal from which is applied to the other terminal of the circuit 6. Further, the circuit 6 calculates ther difference to perform the 2nd delay differentiation. The resulting signal is compared with a reference level from a setting circuit by a comparing circuit 8, whose output signal is applied to an FF9 and one terminal of an AND circuit 10. The output signal of the FF9 is applied to the other terminal of the AND circuit 10 to AND both the inputs, thereby discriminating between a normal table and a half one on the basis of an output appearing at a terminal 11.
JP56048478A 1981-04-02 1981-04-02 Method and device for inspecting thickness of tablet Granted JPS57163805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56048478A JPS57163805A (en) 1981-04-02 1981-04-02 Method and device for inspecting thickness of tablet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56048478A JPS57163805A (en) 1981-04-02 1981-04-02 Method and device for inspecting thickness of tablet

Publications (2)

Publication Number Publication Date
JPS57163805A true JPS57163805A (en) 1982-10-08
JPS6246803B2 JPS6246803B2 (en) 1987-10-05

Family

ID=12804486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56048478A Granted JPS57163805A (en) 1981-04-02 1981-04-02 Method and device for inspecting thickness of tablet

Country Status (1)

Country Link
JP (1) JPS57163805A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60114748A (en) * 1983-11-26 1985-06-21 Takeda Chem Ind Ltd Camera inspection method and apparatus for foreign matter on surface of solid agent
JPS62107293A (en) * 1985-11-01 1987-05-18 Hitachi Ltd Preventing device for rotating stall in compressor
JPH06288932A (en) * 1993-04-01 1994-10-18 Kanebo Ltd Detection circuit for inspection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990163A (en) * 1972-12-27 1974-08-28
JPS5392160A (en) * 1977-01-25 1978-08-12 Omron Tateisi Electronics Co Method of inspecting article

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4990163A (en) * 1972-12-27 1974-08-28
JPS5392160A (en) * 1977-01-25 1978-08-12 Omron Tateisi Electronics Co Method of inspecting article

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60114748A (en) * 1983-11-26 1985-06-21 Takeda Chem Ind Ltd Camera inspection method and apparatus for foreign matter on surface of solid agent
JPH0417371B2 (en) * 1983-11-26 1992-03-25 Takeda Chemical Industries Ltd
JPS62107293A (en) * 1985-11-01 1987-05-18 Hitachi Ltd Preventing device for rotating stall in compressor
JPH06288932A (en) * 1993-04-01 1994-10-18 Kanebo Ltd Detection circuit for inspection device

Also Published As

Publication number Publication date
JPS6246803B2 (en) 1987-10-05

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