FR545489A - Advanced tachometer layout - Google Patents

Advanced tachometer layout

Info

Publication number
FR545489A
FR545489A FR545489DA FR545489A FR 545489 A FR545489 A FR 545489A FR 545489D A FR545489D A FR 545489DA FR 545489 A FR545489 A FR 545489A
Authority
FR
France
Prior art keywords
tachometer
layout
advanced
tachometer layout
advanced tachometer
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
Other languages
French (fr)
Inventor
Johan Dahl
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 filed Critical
Application granted granted Critical
Publication of FR545489A publication Critical patent/FR545489A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/26—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object
    • G01C3/28—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object with provision for reduction of the distance into the horizontal plane
    • G01C3/30—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with fixed angles and a base of variable length, at, near, or formed by the object with provision for reduction of the distance into the horizontal plane with adaptation to the measurement of the height of an object, e.g. tacheometers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR545489D 1921-12-31 1921-12-31 Advanced tachometer layout Expired FR545489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR545489T 1921-12-31

Publications (1)

Publication Number Publication Date
FR545489A true FR545489A (en) 1922-10-12

Family

ID=8932984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR545489D Expired FR545489A (en) 1921-12-31 1921-12-31 Advanced tachometer layout

Country Status (1)

Country Link
FR (1) FR545489A (en)

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