Definition of magnetometer in US English:



  • An instrument used for measuring magnetic forces, especially the earth's magnetism.

    • ‘If this doesn't turn up your target things get a bit more involved, you will need to decide how large an area you want to search and how close you will need to get for the magnetometer to detect your target.’
    • ‘The aerial survey begins next month, using a magnetometer to scan the ground for increased magnetic activity, which could signal the presence of the precious stones.’
    • ‘The team hopes the magnetometer will identify the wreck site by detecting the iron used in the hulls and steam engines of the sunken ships.’
    • ‘Well, what we actually do is plant what we call electrodes which are little electrical sensors and magnetometers which sense the magnetic fields.’
    • ‘Chris Carr of Imperial College London is using a magnetometer on the craft to study interactions with the solar wind as Venus Express flies through the boundary layer above the planet.’
    • ‘We have magnetometers checking people that come into the stadium.’
    • ‘In the operation of a network of magnetic observatories in Australia and Australian Antarctic Territory, the maintenance of precise and highly accurate magnetometers is a requirement.’
    • ‘Another of Cassini's instruments, the magnetometer, recently discovered water ions which could be part of a very thin atmosphere around Enceladus.’
    • ‘Even Luna 1 carried a magnetometer and found that the Moon produces no significant magnetic field, quite unlike Earth.’
    • ‘While his day job involves keeping tabs on submarines, mostly through the use of airborne magnetometers, Nelson has been helping Woodman search for the Franklin ships over the past decade.’
    • ‘The magnetometer picks up any changes in the magnetic field created by disturbances in the soil, such as a trench filled in with soil.’
    • ‘Researchers analysed data obtained by the Galileo space probe on January 3, when Europa's magnetic field was measured by a magnetometer.’
    • ‘They also detect only the portion of a magnetic field pointing along the sensor, while the atomic magnetometers detect the total field strength, a desirable capability for many magnetic imaging and search applications.’
    • ‘The first phase in the project started off on Tuesday this week with a four day expedition conducting a series of preliminary tests using a land and marine magnetometer, a device measuring the earth's magnetic field.’
    • ‘When Cassini had its first encounter with Enceladus on 17 February at an altitude of 1167 kilometres, the magnetometer saw a striking signature in the magnetic field.’
    • ‘Students will build and operate a simple magnetometer using a soda bottle and a bar magnet.’
    • ‘The lowest point of each elliptically shaped orbit curved below the planet's ionosphere, allowing the magnetometer to obtain better-than-planned regional measurements of Mars.’
    • ‘The scientific payload includes stereo imaging equipment, a laser altimeter, a magnetometers, and an X-ray Spectrometer.’
    • ‘The technique evolved during the Second World War when the US Navy developed a magnetometer to detect submarines.’
    • ‘Simply put, the magnetometer does something that no other instrument on Cassini does - it looks inside Saturn, because the magnetic field of Saturn is generated in the core of the planet.’