GB218549A - Improvements in or relating to range finding apparatus - Google Patents

Improvements in or relating to range finding apparatus

Info

Publication number
GB218549A
GB218549A GB2850323A GB2850323A GB218549A GB 218549 A GB218549 A GB 218549A GB 2850323 A GB2850323 A GB 2850323A GB 2850323 A GB2850323 A GB 2850323A GB 218549 A GB218549 A GB 218549A
Authority
GB
United Kingdom
Prior art keywords
log
base
distance
telescopes
relating
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
GB2850323A
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.)
MASCHB AG SEEBACH
Original Assignee
MASCHB AG SEEBACH
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 MASCHB AG SEEBACH filed Critical MASCHB AG SEEBACH
Priority to GB2850323A priority Critical patent/GB218549A/en
Publication of GB218549A publication Critical patent/GB218549A/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
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

218,549. Pollak, J. E., (Maschinenbau- Akt.-Ges. Seebach). Nov. 12, 1923. Range-finders.-In electrical apparatus for the measurement of distances by the utilization of two telescopes at the ends of a base means are provided to compensate for the errors introduced by electrical resistances in the circuits which are not measuring resistances. The telescopes are sighted on a point at a known distance, and the resistance 7 corresponding to the log base in the equation log. distance = log. base + log sin angle opposite distance + log cosec. angle opposite the base is adjusted until the instrument 8 indicates the correct distance. The adjusted resistance is then used as though it were correctly log. base. Specification 218,548 is referred to.
GB2850323A 1923-11-12 1923-11-12 Improvements in or relating to range finding apparatus Expired GB218549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2850323A GB218549A (en) 1923-11-12 1923-11-12 Improvements in or relating to range finding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2850323A GB218549A (en) 1923-11-12 1923-11-12 Improvements in or relating to range finding apparatus

Publications (1)

Publication Number Publication Date
GB218549A true GB218549A (en) 1924-07-10

Family

ID=10276662

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2850323A Expired GB218549A (en) 1923-11-12 1923-11-12 Improvements in or relating to range finding apparatus

Country Status (1)

Country Link
GB (1) GB218549A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726810A (en) * 1943-03-25 1955-12-13 Sperry Rand Corp Electric fire control computer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726810A (en) * 1943-03-25 1955-12-13 Sperry Rand Corp Electric fire control computer

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