Determination of the earth’s magnetic field

A constant magnetic field, its magnitude and direction known, is superimposed on the unknown earth magnetic field. The earth-magnetic field can then be calculated from the magnitude and direction of the resulting flux density.

  • Particularly homogeneous magnetic field and high flux density due to large Helmholtz coil diameter
  • Setup with precalibrated teslameter does not require additional magnets and coils for calibration

Hall probe, axial

PHYWE Teslameter, digital

Support rod, stainless steel, l = 250 mm, d = 10 mm

Stand tube

Rheostat, 100 Ohm, 1.8 A

Magnetometer

Helmholtz coils, one pair

Digital multimeter 2005

Connecting cord, 32 A, 1000 mm, red

Connecting cord, 32 A, 1000 mm, blue

PHYWE power supply, universal DC: 0…18 V, 0…5 A / AC: 2/4/6/8/10/12/15 V, 5 A

Right angle clamp expert

Barrel base expert

  • The magnetic flux of a pair of Helmholtz coils is to be determined and plotted graphically as a function of the coil current. The Helmholtz system calibration factor is calculated from the slope of the line.
  • The horizontal component of the earth-magnetic field is determined through superimposition of the Helmholtz field.
  • The angle of inclination must be determined in order to calculate the vertical component of the earth-magnetic field.
  • Magnetic inclination and declination
  • Isoclinic lines
  • Isogenic lines
  • Inclinometer
  • Magnetic flow density
  • Helmholtz coils

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Product number

P2430100

Determination of the earth's magnetic field

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