GB550470A - Improvements in geophysical instruments - Google Patents

Improvements in geophysical instruments

Info

Publication number
GB550470A
GB550470A GB1149/42A GB114942A GB550470A GB 550470 A GB550470 A GB 550470A GB 1149/42 A GB1149/42 A GB 1149/42A GB 114942 A GB114942 A GB 114942A GB 550470 A GB550470 A GB 550470A
Authority
GB
United Kingdom
Prior art keywords
jan
measured
movement
disc
geophysical instruments
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
GB1149/42A
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.)
Bolidens Gruvaktiebolag
Original Assignee
Bolidens Gruvaktiebolag
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 Bolidens Gruvaktiebolag filed Critical Bolidens Gruvaktiebolag
Publication of GB550470A publication Critical patent/GB550470A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V7/00—Measuring gravitational fields or waves; Gravimetric prospecting or detecting
    • G01V7/08—Measuring gravitational fields or waves; Gravimetric prospecting or detecting using balances
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V7/00—Measuring gravitational fields or waves; Gravimetric prospecting or detecting
    • G01V7/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

550,470. Electric measuring systems. BOLIDENS GRUVAKTIEBOLAG. Jan. 27, 1942, No. 1149. Convention date, Jan. 27, 1941. [Class 40 (i)] [Also in Groups XX, XIX, XXI and XXXVI] The movements of the member 1 of a seismograph or gravimeter are exaggerated by providing compression springs 4, 5 acting on the member in opposite directions in a line normally at right angles to the direction of movement. The movement may be measured by measuring the change in capacitance between a disc 16 carried by the member 1 and a fixed disc 17. Alternatively the voltage required to be applied to the discs 10, 11 to bring member 1 to its zero position may be measured.
GB1149/42A 1941-01-27 1942-01-27 Improvements in geophysical instruments Expired GB550470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE550470X 1941-01-27

Publications (1)

Publication Number Publication Date
GB550470A true GB550470A (en) 1943-01-08

Family

ID=20311777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1149/42A Expired GB550470A (en) 1941-01-27 1942-01-27 Improvements in geophysical instruments

Country Status (1)

Country Link
GB (1) GB550470A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167558A (en) * 1984-10-18 1986-05-29 Covert Security Systems Ltd Seismic detector and method
CN107489733A (en) * 2017-09-27 2017-12-19 中国地震局地震研究所 Two level vibration isolator based on piece spring structure
CN107765322A (en) * 2017-09-27 2018-03-06 中国地震局地震研究所 Vibrating isolation system based on SF leaf spring
CN107807399A (en) * 2017-09-27 2018-03-16 中国地震局地震研究所 Absolute gravimeter vibrating isolation system based on " Sangen " tablet spring suspension helical spring
RU2705926C1 (en) * 2019-04-29 2019-11-12 Анатолий Борисович Попов Complex for measurement of absolute value of gravitational acceleration on movable base

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167558A (en) * 1984-10-18 1986-05-29 Covert Security Systems Ltd Seismic detector and method
CN107489733A (en) * 2017-09-27 2017-12-19 中国地震局地震研究所 Two level vibration isolator based on piece spring structure
CN107765322A (en) * 2017-09-27 2018-03-06 中国地震局地震研究所 Vibrating isolation system based on SF leaf spring
CN107807399A (en) * 2017-09-27 2018-03-16 中国地震局地震研究所 Absolute gravimeter vibrating isolation system based on " Sangen " tablet spring suspension helical spring
RU2705926C1 (en) * 2019-04-29 2019-11-12 Анатолий Борисович Попов Complex for measurement of absolute value of gravitational acceleration on movable base

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