BE875235A - GEOPHONE WITH MAGNETIC FIELD SHAPED - Google Patents

GEOPHONE WITH MAGNETIC FIELD SHAPED

Info

Publication number
BE875235A
BE875235A BE0/194337A BE194337A BE875235A BE 875235 A BE875235 A BE 875235A BE 0/194337 A BE0/194337 A BE 0/194337A BE 194337 A BE194337 A BE 194337A BE 875235 A BE875235 A BE 875235A
Authority
BE
Belgium
Prior art keywords
geophone
magnetic field
field shaped
shaped
magnetic
Prior art date
Application number
BE0/194337A
Other languages
French (fr)
Inventor
E Florian
T Riley
S Haggard
Original Assignee
Mark Products
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 Mark Products filed Critical Mark Products
Publication of BE875235A publication Critical patent/BE875235A/en

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/02—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by magnetic means, e.g. reluctance
    • 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
    • G01V1/182—Geophones with moving coil

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
BE0/194337A 1978-04-27 1979-03-30 GEOPHONE WITH MAGNETIC FIELD SHAPED BE875235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90051278A 1978-04-27 1978-04-27

Publications (1)

Publication Number Publication Date
BE875235A true BE875235A (en) 1979-07-16

Family

ID=25412642

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/194337A BE875235A (en) 1978-04-27 1979-03-30 GEOPHONE WITH MAGNETIC FIELD SHAPED

Country Status (5)

Country Link
BE (1) BE875235A (en)
DE (1) DE2852565A1 (en)
FR (1) FR2424550A1 (en)
GB (1) GB2022359A (en)
NL (1) NL7901771A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214724A (en) * 1988-01-28 1989-09-06 Custom Dev Ltd Permanent magnet electric motor
JPH06323897A (en) * 1993-05-17 1994-11-25 N D R:Kk Vibration/impact detection sensor
JPH11258353A (en) * 1998-03-10 1999-09-24 Tomoo Matsuo Earth storm display device and earth fluctuation prediction device using the same
US6922374B2 (en) * 2001-04-09 2005-07-26 Input/Output, Inc. Double-ended geophone
DE102006016355A1 (en) * 2006-04-05 2007-10-18 Vega Grieshaber Kg vibration sensor
DE102009008789A1 (en) * 2009-02-13 2010-09-02 Geolab S.A.S. Acoustic sensor e.g. seismometer, for use in measuring arrangement to detect seismic waves, has coil arranged at magnetic field and moved relative to magnetic field produced by two magnets, which face each other with same polarity
US8208347B2 (en) 2009-07-08 2012-06-26 Geospace Technologies, Lp Geophone having improved damping control
US8098546B2 (en) 2009-07-08 2012-01-17 Geospace Technologies, Lp Geophone having improved sensitivity
US8050144B2 (en) 2009-07-08 2011-11-01 Geospace Technologies Lp Vertical geophone having improved distortion characteristics
SE538479C2 (en) * 2013-06-20 2016-07-26 Uhlin Per-Axel Vibration sensor for sensing vibrations in the vertical and horizontal joints of the vibration sensor

Also Published As

Publication number Publication date
GB2022359A (en) 1979-12-12
NL7901771A (en) 1979-10-30
DE2852565A1 (en) 1979-10-31
FR2424550A1 (en) 1979-11-23

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