DE69226529T2 - Eigensichere abtastschaltung und sensor des typs mit strahlen mit mehreren optischen achsen - Google Patents

Eigensichere abtastschaltung und sensor des typs mit strahlen mit mehreren optischen achsen

Info

Publication number
DE69226529T2
DE69226529T2 DE69226529T DE69226529T DE69226529T2 DE 69226529 T2 DE69226529 T2 DE 69226529T2 DE 69226529 T DE69226529 T DE 69226529T DE 69226529 T DE69226529 T DE 69226529T DE 69226529 T2 DE69226529 T2 DE 69226529T2
Authority
DE
Germany
Prior art keywords
beams
sensor
type
optical axes
intrinsically safe
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 - Fee Related
Application number
DE69226529T
Other languages
English (en)
Other versions
DE69226529D1 (de
Inventor
Masakazu Kato
Koichi Futuhara
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.)
Nippon Signal Co Ltd
Original Assignee
Nippon Signal 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 Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Publication of DE69226529D1 publication Critical patent/DE69226529D1/de
Application granted granted Critical
Publication of DE69226529T2 publication Critical patent/DE69226529T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/15—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors
    • H03K5/15013—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs
    • H03K5/1506—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages
    • H03K5/15066—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages using bistable devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/941—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector
    • H03K2217/94114—Optical multi axis

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Electronic Switches (AREA)
DE69226529T 1992-05-15 1992-05-15 Eigensichere abtastschaltung und sensor des typs mit strahlen mit mehreren optischen achsen Expired - Fee Related DE69226529T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1992/000631 WO1993023772A1 (en) 1992-05-15 1992-05-15 Fail-safe scanning circuit and sensor of multi-optical axis beam type

Publications (2)

Publication Number Publication Date
DE69226529D1 DE69226529D1 (de) 1998-09-10
DE69226529T2 true DE69226529T2 (de) 1999-01-21

Family

ID=14042344

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69226529T Expired - Fee Related DE69226529T2 (de) 1992-05-15 1992-05-15 Eigensichere abtastschaltung und sensor des typs mit strahlen mit mehreren optischen achsen

Country Status (4)

Country Link
US (1) US5432337A (de)
EP (1) EP0594852B1 (de)
DE (1) DE69226529T2 (de)
WO (1) WO1993023772A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69224647T2 (de) * 1992-07-16 1998-08-27 Nippon Signal Co Ltd Ausfallsichere logische schaltung mit elektromagnetischer kopplung
US6046834A (en) 1996-03-08 2000-04-04 Nihon Shingo Kabushiki Kaisha Optical barrier
EP0867274A1 (de) * 1996-09-03 1998-09-30 The Nippon Signal Co. Ltd. Kontrollapparat
JPH1190696A (ja) 1997-09-19 1999-04-06 Nippon Signal Co Ltd:The プレス機械の運転装置
JP4141039B2 (ja) 1998-06-10 2008-08-27 日本信号株式会社 閾値演算回路及びこれを用いたａｎｄゲート回路、自己保持回路及び起動信号発生回路
JP4442272B2 (ja) * 2004-03-22 2010-03-31 富士ゼロックス株式会社 画像読み取り装置、基準部材の異物検知方法
US7748815B2 (en) * 2007-08-06 2010-07-06 Hewlett-Packard Development Company, L.P. Disabling a nozzle
US7810697B2 (en) * 2008-08-22 2010-10-12 Honda Motor Co., Ltd. Turntable welding system with light curtain protection

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3805061A (en) * 1973-04-23 1974-04-16 Tyco Laboratories Inc Object detecting apparatus
US4309696A (en) * 1978-06-26 1982-01-05 Kabushiki Kaisha Komatsu Seisakusho Trouble detecting unit in an optical security device
US4266124A (en) * 1979-08-10 1981-05-05 Data Instruments, Inc. Photoelectric object detector system
US4520262A (en) * 1979-09-10 1985-05-28 Kenneth Ambler Photoelectric safety screen with stray source detection
JPS5698667A (en) * 1980-01-10 1981-08-08 Fuji Electric Co Ltd Object detector
JPS57142578A (en) * 1981-02-28 1982-09-03 Riken Lens Kogyo Kk Automatic check device for light beam type safety device
JPH0669274B2 (ja) * 1984-04-19 1994-08-31 日本信号株式会社 負荷駆動用スイッチ回路の監視装置
JPS60227326A (ja) * 1984-04-25 1985-11-12 日本信号株式会社 負荷駆動用スイツチ回路の監視装置
DE3601516A1 (de) * 1986-01-20 1987-07-23 Agie Ag Ind Elektronik Lichtschranke
US5015840B1 (en) * 1990-01-09 1995-04-11 Scient Technologies Inc Self-checking light curtain system and method of operation.
US5218196A (en) * 1991-09-05 1993-06-08 Frost Controls, Inc. Light curtain system with system and watchdog microcontrollers

Also Published As

Publication number Publication date
US5432337A (en) 1995-07-11
WO1993023772A1 (en) 1993-11-25
EP0594852A1 (de) 1994-05-04
EP0594852B1 (de) 1998-08-05
DE69226529D1 (de) 1998-09-10
EP0594852A4 (en) 1995-12-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee