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GB1376304A - Detector device - Google Patents

Detector device

Info

Publication number
GB1376304A
GB1376304A GB1258571A GB1258571A GB1376304A GB 1376304 A GB1376304 A GB 1376304A GB 1258571 A GB1258571 A GB 1258571A GB 1258571 A GB1258571 A GB 1258571A GB 1376304 A GB1376304 A GB 1376304A
Authority
GB
United Kingdom
Prior art keywords
stem
fibres
photo
branch
conducted down
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
GB1258571A
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.)
HIRD BROWN Ltd
Original Assignee
HIRD BROWN 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 HIRD BROWN Ltd filed Critical HIRD BROWN Ltd
Priority to GB1258571A priority Critical patent/GB1376304A/en
Publication of GB1376304A publication Critical patent/GB1376304A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
    • 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
    • G01N21/55—Specular reflectivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/16—Detecting, e.g. by using light barriers using one transmitter and one receiver using optical fibres

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Geophysics (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Control Of Conveyors (AREA)

Abstract

1376304 Photo-electric apparatus HIRDBROWN Ltd 28 Feb 1972 [1 May 1971] 12585/71 Heading G1A [Also in Divisions G2 and G4] In a detector device, e.g. for counting objects 10 on a conveyor belt 9, light from a filament lamp or GaAS diode 6 is conducted down a branch 5 and main stem 3 of an optical fibre element 2, issues from the stem end to be incident on a reflector 11, and returned light is conducted down a second branch 4 to a photo-cell 7. The "outward" and "return" fibres may be distributed randomly throughout the cross-section of the main stem 3, Fig. 2 (not shown). Alternatively the two branches, each composed of a plurality of fibres, are each formed from a semicircular segment of the stem, Fig. 3 (not shown), from two diametrically opposed quadrants of the stem, Fig. 5 (not shown), or from inner and outer concentric portions, Fig. 4 (not shown). The fibres may be of glass, or of transparent plastics such as unpigmented acrylic polymer. The photo-cell output is amplified and supplied to e.g. visual and audible indicators, counting devices and alarms.
GB1258571A 1972-02-28 1972-02-28 Detector device Expired GB1376304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1258571A GB1376304A (en) 1972-02-28 1972-02-28 Detector device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1258571A GB1376304A (en) 1972-02-28 1972-02-28 Detector device

Publications (1)

Publication Number Publication Date
GB1376304A true GB1376304A (en) 1974-12-04

Family

ID=10007346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1258571A Expired GB1376304A (en) 1972-02-28 1972-02-28 Detector device

Country Status (1)

Country Link
GB (1) GB1376304A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535579A1 (en) * 1982-11-05 1984-05-11 Suay Balaguer Enrique Device for increasing the length of portions of bread-making dough
US4500870A (en) * 1981-09-29 1985-02-19 Eotec Corporation Method and components for remote reading of utility meters
FR2555325A1 (en) * 1983-11-18 1985-05-24 Smiths Industries Plc OPTICAL CABLE, PYROMETER COMPRISING SUCH A CABLE AND METHOD OF MANUFACTURING THE CABLE
EP0156192A1 (en) * 1984-03-05 1985-10-02 AB Tetra Pak Method for detecting position of conveyed articles
GB2159940A (en) * 1984-06-01 1985-12-11 Stc Plc Remote optical sensors
US4559813A (en) * 1983-05-11 1985-12-24 Ihc Holland N.V. System and device for detecting the forming of depot
GB2181233A (en) * 1985-10-07 1987-04-15 Gen Electric Plc Motion detection devices
US4672200A (en) * 1985-11-05 1987-06-09 Emhart Industries, Inc. Optical inspection of transparent layers
EP0308223A2 (en) * 1987-09-16 1989-03-22 Mainline Technology Limited Counting articles
FR2690757A1 (en) * 1992-05-04 1993-11-05 Alsthom Gec Monitoring system for position of electrical switch part - has U=shaped frame around part, optical fibre for directing modulated beam from one arm of frame to mirror on other arm for reflection back to fibre for detection, and comparator circuit.
GB2275348A (en) * 1993-02-20 1994-08-24 Secr Defence Optical fibre probe
EP0802430A2 (en) * 1996-04-18 1997-10-22 Sick AG Opto-electronic sensor

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500870A (en) * 1981-09-29 1985-02-19 Eotec Corporation Method and components for remote reading of utility meters
FR2535579A1 (en) * 1982-11-05 1984-05-11 Suay Balaguer Enrique Device for increasing the length of portions of bread-making dough
US4559813A (en) * 1983-05-11 1985-12-24 Ihc Holland N.V. System and device for detecting the forming of depot
FR2555325A1 (en) * 1983-11-18 1985-05-24 Smiths Industries Plc OPTICAL CABLE, PYROMETER COMPRISING SUCH A CABLE AND METHOD OF MANUFACTURING THE CABLE
GB2149936A (en) * 1983-11-18 1985-06-19 Smiths Industries Plc Fibre optic assembly made from at least three optic fibre bundles
US4666245A (en) * 1983-11-18 1987-05-19 Smiths Industries Public Limited Company Fibre-optic cable assemblies and radiation pyrometers
EP0156192A1 (en) * 1984-03-05 1985-10-02 AB Tetra Pak Method for detecting position of conveyed articles
GB2159940A (en) * 1984-06-01 1985-12-11 Stc Plc Remote optical sensors
GB2181233A (en) * 1985-10-07 1987-04-15 Gen Electric Plc Motion detection devices
US4672200A (en) * 1985-11-05 1987-06-09 Emhart Industries, Inc. Optical inspection of transparent layers
EP0308223A2 (en) * 1987-09-16 1989-03-22 Mainline Technology Limited Counting articles
EP0308223A3 (en) * 1987-09-16 1990-01-10 Mainline Technology Limited Counting articles
FR2690757A1 (en) * 1992-05-04 1993-11-05 Alsthom Gec Monitoring system for position of electrical switch part - has U=shaped frame around part, optical fibre for directing modulated beam from one arm of frame to mirror on other arm for reflection back to fibre for detection, and comparator circuit.
GB2275348A (en) * 1993-02-20 1994-08-24 Secr Defence Optical fibre probe
GB2275348B (en) * 1993-02-20 1996-06-19 Secr Defence Optical sensors
EP0802430A2 (en) * 1996-04-18 1997-10-22 Sick AG Opto-electronic sensor
EP0802430A3 (en) * 1996-04-18 1999-06-23 Sick AG Opto-electronic sensor
US6091071A (en) * 1996-04-18 2000-07-18 Sick Ag Opto-electronic sensor

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees