magnetometer
Sign in to savethumb |right |Helium vector magnetometer (HVM) of the Pioneer 10 and 11 spacecraft
Article
56 sectionsContents
- Introduction
- Magnetic fields
- Types of magnetometer
- Performance and capabilities
- Early magnetometers
- Laboratory magnetometers
- SQUID (superconducting quantum interference device)
- Inductive pickup coils
- VSM (vibrating-sample magnetometer)
- Pulsed-field magnetometry
- Torque magnetometry
- Faraday force magnetometry
- Optical magnetometry
- A.C. susceptometry
- Alternating Gradient Magnetometry
- Survey magnetometers
- Scalar magnetometers
- Proton precession magnetometer
- Overhauser effect magnetometer
- Caesium vapour magnetometer
- Potassium vapour magnetometer
- Metastable helium-4 scalar magnetometer
- Applications
- Vector magnetometers
- Rotating coil magnetometer
- Hall effect magnetometer
- Magnetoresistive devices
- Fluxgate magnetometer
- SQUID magnetometer
- Zero-field optically-pumped magnetometers
- Spin-exchange relaxation-free (SERF) atomic magnetometers
- Calibration of magnetometers
- Uses
- Mechanical stress measurement
- Accelerator physics
- Archaeology
- Auroras
- Coal exploration
- Directional drilling
- Military
- Mineral exploration
- Mobile phones
- Oil exploration
- Spacecraft
- Magnetic surveys
- Magnetovision
- Gradiometer
- Position control of magnetic surveys
- Heading errors in magnetic surveys
- Image processing of magnetic data
- Aircraft navigation
- Neuroscience
- See also
- References
- Further reading
- External links
thumb |right |Helium vector magnetometer (HVM) of the Pioneer 10 and 11 spacecraft
A magnetometer is a device that measures magnetic field () or magnetic dipole moment. Different types of magnetometers measure the direction, strength, or relative change of the magnetic -field at a particular location. A compass is one such device, one that measures the direction of an ambient magnetic field, in this case, the Earth's magnetic field. Other magnetometers measure the magnetic dipole moment of a magnetic material such as a ferromagnet, for example by recording the effect of this magnetic dipole on the induced current in a coil.