FR781825A - Method and device for the direct measurement of horizontal distances by means of range finders and rods - Google Patents

Method and device for the direct measurement of horizontal distances by means of range finders and rods

Info

Publication number
FR781825A
FR781825A FR781825DA FR781825A FR 781825 A FR781825 A FR 781825A FR 781825D A FR781825D A FR 781825DA FR 781825 A FR781825 A FR 781825A
Authority
FR
France
Prior art keywords
rods
direct measurement
range finders
horizontal distances
distances
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
Heinrich Alt
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 FR781825A publication Critical patent/FR781825A/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)
FR781825D 1933-10-26 1934-10-23 Method and device for the direct measurement of horizontal distances by means of range finders and rods Expired FR781825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT781825X 1933-10-26

Publications (1)

Publication Number Publication Date
FR781825A true FR781825A (en) 1935-05-22

Family

ID=3680856

Family Applications (1)

Application Number Title Priority Date Filing Date
FR781825D Expired FR781825A (en) 1933-10-26 1934-10-23 Method and device for the direct measurement of horizontal distances by means of range finders and rods

Country Status (1)

Country Link
FR (1) FR781825A (en)

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