Fluxgate Magnetometers

  • Single-Axis Fluxgate Magnetometers
  • Triaxial Fluxgate Magnetometers
  • FGM Series Fluxgate Magnetometers consists of 10 models - eight single-axis and two triaxial. The Single Axis instruments combine the convenience of hand-held portability with high sensitivity and accuracy. DC magnetic fields can be measured to an absolute accuracy of ±0.5% traceable to NIST with linearity of better than 0.02% in all ranges and resolution down to 0.01 milligauss in the 20 milligauss range. The optional neutralization feature can be used to offset ambient fields up to 600 milligauss, thus allowing precise measurements of very small magnetic field changes in the presence of larger fields, such as the Earth's field. All models provide a buffered analog output, DC to 100 Hz (optional DC to 400 Hz).

    The Triaxial Fluxgate Magnetometers measure the 3 vectors of the magnetic field simultaneously and have the capability of displaying individual vectors or the resultant vector and its direction with a range up to 2000 milligauss. Both models feature ±0.5%, ±1 count accuracy traceable to NIST, provide 0.01 milligauss resolution and linearity of ±0.2%. In the relative mode the FGM-5DTAA offers accuracy of ±.25% of the reading taken. They have a DC to 100 Hz frequency response and noise level of <0.5 gamma. Both instruments offer a buffered voltage analog output capable of driving a strip chart or data acquisition system. Data storage, data acquisition and remote control through an RS-232 interface is also available.

      Download a printable version of the FGM Brochure




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