GB1289847A - - Google Patents

Info

Publication number
GB1289847A
GB1289847A GB1289847DA GB1289847A GB 1289847 A GB1289847 A GB 1289847A GB 1289847D A GB1289847D A GB 1289847DA GB 1289847 A GB1289847 A GB 1289847A
Authority
GB
United Kingdom
Prior art keywords
detectors
output
amplifier
winding
electromagnet
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 GB1289847A publication Critical patent/GB1289847A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18—Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • G01V1/181—Geophones

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB1289847D 1969-10-03 1969-10-03 Expired GB1289847A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4867969 1969-10-03

Publications (1)

Publication Number Publication Date
GB1289847A true GB1289847A (enrdf_load_stackoverflow) 1972-09-20

Family

ID=10449522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289847D Expired GB1289847A (enrdf_load_stackoverflow) 1969-10-03 1969-10-03

Country Status (1)

Country Link
GB (1) GB1289847A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2236025C1 (ru) * 2003-05-28 2004-09-10 Военная академия Ракетных войск стратегического назначения им. Петра Великого Сейсмограф
NL2001627C2 (nl) * 2007-10-24 2009-04-27 Magnetic Innovations B V Snelheidssensor.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2236025C1 (ru) * 2003-05-28 2004-09-10 Военная академия Ракетных войск стратегического назначения им. Петра Великого Сейсмограф
NL2001627C2 (nl) * 2007-10-24 2009-04-27 Magnetic Innovations B V Snelheidssensor.
WO2009054724A3 (en) * 2007-10-24 2010-10-21 Magnetic Innovations Bv Speed sensor

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Legal Events

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