CH674108A5 - - Google Patents

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Publication number
CH674108A5
CH674108A5 CH414988A CH414988A CH674108A5 CH 674108 A5 CH674108 A5 CH 674108A5 CH 414988 A CH414988 A CH 414988A CH 414988 A CH414988 A CH 414988A CH 674108 A5 CH674108 A5 CH 674108A5
Authority
CH
Switzerland
Prior art keywords
laser beam
photodiodes
printed circuit
circuit board
beam receiver
Prior art date
Application number
CH414988A
Other languages
German (de)
English (en)
Inventor
Robert Sander
Original Assignee
Sander Elektronik Ag
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 Sander Elektronik Ag filed Critical Sander Elektronik Ag
Priority to CH414988A priority Critical patent/CH674108A5/de
Priority to PCT/CH1989/000193 priority patent/WO1990005281A1/fr
Publication of CH674108A5 publication Critical patent/CH674108A5/de

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/84—Drives or control devices therefor, e.g. hydraulic drive systems
    • E02F3/841—Devices for controlling and guiding the whole machine, e.g. by feeler elements and reference lines placed exteriorly of the machine
    • E02F3/842—Devices for controlling and guiding the whole machine, e.g. by feeler elements and reference lines placed exteriorly of the machine using electromagnetic, optical or photoelectric beams, e.g. laser beams
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/002—Active optical surveying means
    • G01C15/004—Reference lines, planes or sectors
    • G01C15/006—Detectors therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Communication System (AREA)
  • Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
CH414988A 1988-11-09 1988-11-09 CH674108A5 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH414988A CH674108A5 (fr) 1988-11-09 1988-11-09
PCT/CH1989/000193 WO1990005281A1 (fr) 1988-11-09 1989-11-06 Recepteur de rayons laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH414988A CH674108A5 (fr) 1988-11-09 1988-11-09

Publications (1)

Publication Number Publication Date
CH674108A5 true CH674108A5 (fr) 1990-04-30

Family

ID=4270731

Family Applications (1)

Application Number Title Priority Date Filing Date
CH414988A CH674108A5 (fr) 1988-11-09 1988-11-09

Country Status (2)

Country Link
CH (1) CH674108A5 (fr)
WO (1) WO1990005281A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3887012A (en) * 1973-12-03 1975-06-03 Caterpillar Tractor Co Automatic levelling system for earth working blades and the like
US4200787A (en) * 1978-05-30 1980-04-29 CLS Industries, Inc. Fiber optic elevation sensing apparatus
IE59553B1 (en) * 1986-10-30 1994-03-09 Inst For Ind Res & Standards Position sensing apparatus

Also Published As

Publication number Publication date
WO1990005281A1 (fr) 1990-05-17

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Legal Events

Date Code Title Description
PL Patent ceased