JCX-3 Three-Component Borehole Magnetometer

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JCX-3 Three-Component BoreholeMagnetometer

  • Used for magnetic exploration in wells. Suitable for use in     drilling with diameter greater than φ46mm for measurement of horizontal     component X, Y and vertical component Z in magnetic field. Can also be     used as high-precision inclinometer with non-magnetic hole or far away     from magnetic well. It can solve the following issues.

  • Verify ground magnetic     abnormality, and determine the nature of abnormality.

  • Combined with ground magnetic     survey for three-dimensional interpretation.

  • High-precision measurement of     deviation azimuth and inclination.

  • Instruct the drilling arrangement,     and guide the drilling.

  • Determine the depth and direction     of blind ore.

  • Determination of ore body     position, extension, range and thickness of exposed ores.

  • Determination of the occurrence of     ore bodies.

  • Searching of magnetic ore     associated ore deposits.

System component

Maininstrument, well logging probe, winch and cable, software


  • Measuring Range: -99999nT~+99999nT    

  • Difference of readings at the     opposite orientation for X, Y magneto sensors ≤400nT

  • Difference of readings at the     opposite orientation for Z magneto sensor ≤ 300nT

  • Inclination Measuring Range:     0~45°, Error: smaller than 0.2°

  • Azimuth      Measuring Range: 0~360°, Error: smaller than 2° (inclination ≥3°)

  • Linearity ≤2‰

  • Digital Output, Update Rate ≥ 3     times / sec

  • Probe Outline Dimension:     φ40×1400mm

  • Measured Well Depth ≤ 2000m

  • Probe Pressure-Proof ≤ 150kg/cm2

  • Dedicated Cable: 4-core Armed     Cable

  • Instrument Working Power Supply:     DC12V/200mA

  • Working Environment: Temperature:     0~70°; Humidity: 90% (40)

  • Master Instrument Outline     Dimension: 305×200×228 mm

  • Weight: 4kg:

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