GB1278491A - Method of and apparatus for testing a bottle - Google Patents

Method of and apparatus for testing a bottle

Info

Publication number
GB1278491A
GB1278491A GB39443/69A GB3944369A GB1278491A GB 1278491 A GB1278491 A GB 1278491A GB 39443/69 A GB39443/69 A GB 39443/69A GB 3944369 A GB3944369 A GB 3944369A GB 1278491 A GB1278491 A GB 1278491A
Authority
GB
United Kingdom
Prior art keywords
bottle
gate
amplifier
transducer
produce
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.)
Expired
Application number
GB39443/69A
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of GB1278491A publication Critical patent/GB1278491A/en
Expired 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • G01N21/9018—Dirt detection in containers
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • G01N21/9072—Investigating the presence of flaws or contamination in a container or its contents with illumination or detection from inside the container
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0078—Testing material properties on manufactured objects
    • G01N33/0081—Containers; Packages; Bottles
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

1278491 Inspecting bottles for blemishes photo-electrically MITSUBISHI JUKOGYO K K 6 Aug 1969 [7 Aug 1968] 39443/69 Heading G1A [Also in Division G2] In a method of testing a bottle, light received within the bottle is divided into a number of separate channels and then converted into separate electrical signals, these signals being amplified and supplied to circuitry including an OR-gate 23 so as to detect the presence or absence of foreign matter on the surface of the bottle. The instrument shown in Fig. 1 is located inside a bottle, and light is deflected by a mirror 7 and focused by a lens 6 on to one end of an optical fibre bundle 4, the other end of the bundle being divided into three separate spaced sections 4a, 4b, 4c. Between each of these sections and its corresponding photoelectric transducer 10a-c is located a glass plate. As shown in Fig. 6, associated with each transducer is an amplifier 20a-c, an integrator 21a-c and a shaping circuit 22a-c. Subsequent to the shaping circuits are an OR gate 23, an AND gate 26 and a memory circuit 27. A branch circuit from transducer 10a to the OR gate contains a D. C. amplifier 24. The second input to the AND gate is connected to a trigger circuit 25, which produces a gating pulse during the inspection period of each bottle. A reset pulse generator 28 is provided for resetting the memory circuit. In use, the bottle is rotated while the inspection device is raised or lowered, to scan the side surface of the bottle in a spiral manner. When a blemish is scanned, at least one of the transducers will produce a pulse which, in modified form, is fed to AND gate 26 to operate a reject mechanism. If the entire surface of the bottle is covered with foreign matter, the transducers detect no change in light level, and hence they produce no reject signal. However, in this case the D. C. amplifier 24 is arranged to provide an output whenever transducer 10a does not produce an output and hence this amplifier generates a reject signal.
GB39443/69A 1968-08-07 1969-08-06 Method of and apparatus for testing a bottle Expired GB1278491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5548668 1968-08-07

Publications (1)

Publication Number Publication Date
GB1278491A true GB1278491A (en) 1972-06-21

Family

ID=12999937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39443/69A Expired GB1278491A (en) 1968-08-07 1969-08-06 Method of and apparatus for testing a bottle

Country Status (2)

Country Link
DE (1) DE1940288A1 (en)
GB (1) GB1278491A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305661A (en) * 1979-02-27 1981-12-15 Diffracto, Ltd. Method and apparatus for determining physical characteristics of objects and object surfaces

Also Published As

Publication number Publication date
DE1940288A1 (en) 1970-02-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee