[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR2603386B1 - METHOD AND APPARATUS FOR MONITORING BY OVERLAYING LIGHT BEAMS - Google Patents

METHOD AND APPARATUS FOR MONITORING BY OVERLAYING LIGHT BEAMS

Info

Publication number
FR2603386B1
FR2603386B1 FR8612394A FR8612394A FR2603386B1 FR 2603386 B1 FR2603386 B1 FR 2603386B1 FR 8612394 A FR8612394 A FR 8612394A FR 8612394 A FR8612394 A FR 8612394A FR 2603386 B1 FR2603386 B1 FR 2603386B1
Authority
FR
France
Prior art keywords
monitoring
light beams
overlaying light
overlaying
beams
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
FR8612394A
Other languages
French (fr)
Other versions
FR2603386A1 (en
Inventor
Enzo Di Benedetto
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.)
COMETA SA
Original Assignee
COMETA SA
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 COMETA SA filed Critical COMETA SA
Priority to FR8612394A priority Critical patent/FR2603386B1/en
Publication of FR2603386A1 publication Critical patent/FR2603386A1/en
Application granted granted Critical
Publication of FR2603386B1 publication Critical patent/FR2603386B1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electric Clocks (AREA)
FR8612394A 1986-09-03 1986-09-03 METHOD AND APPARATUS FOR MONITORING BY OVERLAYING LIGHT BEAMS Expired FR2603386B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8612394A FR2603386B1 (en) 1986-09-03 1986-09-03 METHOD AND APPARATUS FOR MONITORING BY OVERLAYING LIGHT BEAMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8612394A FR2603386B1 (en) 1986-09-03 1986-09-03 METHOD AND APPARATUS FOR MONITORING BY OVERLAYING LIGHT BEAMS

Publications (2)

Publication Number Publication Date
FR2603386A1 FR2603386A1 (en) 1988-03-04
FR2603386B1 true FR2603386B1 (en) 1989-03-10

Family

ID=9338674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8612394A Expired FR2603386B1 (en) 1986-09-03 1986-09-03 METHOD AND APPARATUS FOR MONITORING BY OVERLAYING LIGHT BEAMS

Country Status (1)

Country Link
FR (1) FR2603386B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3803033A1 (en) * 1988-02-02 1989-08-10 Sick Erwin Gmbh LIGHT BARRIER GRID
WO2009059782A1 (en) * 2007-11-07 2009-05-14 Cedes Ag System for fixing an object in on a monitoring surface

Family Cites Families (4)

* 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
US3970846A (en) * 1973-10-29 1976-07-20 Xenex Corporation Presence detecting system with self-checking
DE2424013A1 (en) * 1974-05-17 1975-11-27 Endl Gmbh & Co Elektronik Safety surveillance system for machine tools - using several transmitter and receiver pairs has scanning device covering danger area
SE456952B (en) * 1982-12-16 1988-11-14 Innovationsteknik Inst Ab MICRODATOR CONTROL LIGHT RIDAA

Also Published As

Publication number Publication date
FR2603386A1 (en) 1988-03-04

Similar Documents

Publication Publication Date Title
PT84365A (en) METHOD AND APPARATUS FOR EXTRUSION
BE887806A (en) PHOTOMETRY APPARATUS AND METHOD
FR2603475B3 (en) APPARATUS AND METHOD FOR EXHAUSTING SMOKE FROM A LASER
FR2551222B1 (en) LOGGING APPARATUS AND METHOD
FR2485734B1 (en) DEFECT DETECTION METHOD AND APPARATUS
FR2632230B1 (en) RIVETING METHOD AND APPARATUS
IT1248623B (en) APPARATUS AND METHOD FOR MONITORING POWER
FR2607354B1 (en) POLLINATION METHOD AND DEVICE
FR2606498B1 (en) METHOD AND APPARATUS FOR DRYING WAFERS BY CENTRIFUGATION
FR2569837B1 (en) METHOD AND APPARATUS FOR PRODUCING AN ENERGY BEAM
FR2492297B1 (en) ELECTRO-EROSION DRILLING METHOD AND APPARATUS
BE871170A (en) SOLID-LIQUID SEPARATION METHOD AND APPARATUS
FR2562086B1 (en) APPARATUS FOR MONITORING MICROORGANISMS
BE885938A (en) FORGING METHOD AND APPARATUS
FR2640786B1 (en) METHOD AND APPARATUS FOR AUTOMATIC SITE MONITORING
FR2564212B1 (en) DETECTION APPARATUS USING LIGHT BEAMS
BE865376A (en) METHOD AND APPARATUS FOR MANUFACTURING NON-FABRICS
FR2600806B1 (en) CONTROL SIGNAL DETECTION METHOD AND APPARATUS
FR2602444B1 (en) METHOD AND APPARATUS FOR ADJUSTING A WELDING ATMOSPHERE
FR2597290B1 (en) METHOD AND APPARATUS FOR MANUFACTURING CONDUCTOR BEAMS
FR2613559B1 (en) DIFFERENTIAL ENCODED PULSE MODULATION APPARATUS AND ITS OPERATING METHOD
FR2653301B1 (en) METHOD AND DEVICE FOR INDUSTRIAL POULTRY CLAMPING.
FR2533155B1 (en) APPARATUS AND METHOD FOR SPARK-TIP WELDING
BE871554R (en) METHOD AND DEVICE FOR THE MONITORING OF SHORT-CIRCUITS
BE865542A (en) METHOD AND DEVICE FOR THE MONITORING OF SHORT-CIRCUITS

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse