JCX-3 Three-Component Borehole Magnetometer

Applications and Feature

• 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.

Technical Specifications

• 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: