GB1265218A - - Google Patents

Info

Publication number
GB1265218A
GB1265218A GB1265218DA GB1265218A GB 1265218 A GB1265218 A GB 1265218A GB 1265218D A GB1265218D A GB 1265218DA GB 1265218 A GB1265218 A GB 1265218A
Authority
GB
United Kingdom
Prior art keywords
deviation
scale
bearing
compass
disc
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
English (en)
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
Publication of GB1265218A publication Critical patent/GB1265218A/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
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/38—Testing, calibrating, or compensating of compasses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C1/00—Measuring angles

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
GB1265218D 1969-08-04 1969-08-04 Expired GB1265218A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3892169 1969-08-04

Publications (1)

Publication Number Publication Date
GB1265218A true GB1265218A (zh) 1972-03-01

Family

ID=10406498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265218D Expired GB1265218A (zh) 1969-08-04 1969-08-04

Country Status (1)

Country Link
GB (1) GB1265218A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414717A1 (fr) * 1978-01-11 1979-08-10 Monge Jean Appareil de mesure pour la compensation des compas
CN104655114A (zh) * 2014-12-26 2015-05-27 国家电网公司 无人机的磁罗盘校准装置
CN110470282A (zh) * 2019-09-12 2019-11-19 中国水利水电第三工程局有限公司 一种竖井钢管安装对中测量装置及方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414717A1 (fr) * 1978-01-11 1979-08-10 Monge Jean Appareil de mesure pour la compensation des compas
CN104655114A (zh) * 2014-12-26 2015-05-27 国家电网公司 无人机的磁罗盘校准装置
CN110470282A (zh) * 2019-09-12 2019-11-19 中国水利水电第三工程局有限公司 一种竖井钢管安装对中测量装置及方法

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees