FR1532579A - Improvements to devices for measuring the angular deviation between a direction of eterminée and direction of a force field - Google Patents

Improvements to devices for measuring the angular deviation between a direction of eterminée and direction of a force field

Info

Publication number
FR1532579A
FR1532579A FR108643A FR108643A FR1532579A FR 1532579 A FR1532579 A FR 1532579A FR 108643 A FR108643 A FR 108643A FR 108643 A FR108643 A FR 108643A FR 1532579 A FR1532579 A FR 1532579A
Authority
FR
Grant status
Grant
Patent type
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
FR108643A
Other languages
French (fr)
Inventor
Rene Claret
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.)
SAGEM SA
Original Assignee
SAGEM SA
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
Grant date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • G01C9/02Details
    • G01C9/06Electric or photoelectric indication or reading means
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/02Determining slope or direction
    • E21B47/022Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/02232Determining slope or direction of the borehole, e.g. using geomagnetism using a pendulum
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • G01C5/02Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels involving automatic stabilisation of the line of sight
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • G01C9/12Measuring inclination, e.g. by clinometers, by levels by using a single pendulum
    • G01C9/14Measuring inclination, e.g. by clinometers, by levels by using a single pendulum movable in more than one direction
FR108643A 1967-05-31 1967-05-31 Improvements to devices for measuring the angular deviation between a direction of eterminée and direction of a force field Expired FR1532579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR108643A FR1532579A (en) 1967-05-31 1967-05-31 Improvements to devices for measuring the angular deviation between a direction of eterminée and direction of a force field

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR108643A FR1532579A (en) 1967-05-31 1967-05-31 Improvements to devices for measuring the angular deviation between a direction of eterminée and direction of a force field
FR146770A FR94251E (en) 1967-05-31 1968-04-02 Improvements to devices for measuring the angular deviation between a predetermined direction and the direction of a force field.
GB2540268A GB1208369A (en) 1967-05-31 1968-05-28 Improvements in/or relating to apparatus for measuring the angular separation between a determined direction and the direction of the earth's gravitational field

Publications (1)

Publication Number Publication Date
FR1532579A true FR1532579A (en) 1968-07-12

Family

ID=8632062

Family Applications (1)

Application Number Title Priority Date Filing Date
FR108643A Expired FR1532579A (en) 1967-05-31 1967-05-31 Improvements to devices for measuring the angular deviation between a direction of eterminée and direction of a force field

Country Status (2)

Country Link
FR (1) FR1532579A (en)
GB (1) GB1208369A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439440A1 (en) * 1978-10-20 1980-05-16 Precilec Deviation signalling system for defect in horizontal position - utilises opto-electronic system to receive light reflected from moving reflector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121961B (en) * 1982-06-09 1985-10-02 Jeco Kk Angle change detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439440A1 (en) * 1978-10-20 1980-05-16 Precilec Deviation signalling system for defect in horizontal position - utilises opto-electronic system to receive light reflected from moving reflector

Also Published As

Publication number Publication date Type
GB1208369A (en) 1970-10-14 application

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