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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 a magnetic field at a particular location.
The magnetometer sounded an alarm and "an officer performed a secondary hand search, and the man was let into the building," according to a statement from U.S. Capitol Police. PHOTO: The US ...
Modified aircraft, equipped with a stinger and wing extensions, where magnetometers are installed Helicopter equipped with a magnetometer mounted in a stinger . An aeromagnetic survey is a common type of geophysical survey carried out using a magnetometer aboard or towed behind an aircraft. The principle is similar to a magnetic survey carried ...
Delaware Capitol Police employs Security Officers who operate the magnetometers and x-ray machines at the entrances to the courthouses, Legislative Hall, and the Carvel State Building. They are responsible for the screening, and if necessary the searching, of employees, visitors, and packages entering the courthouse.
The term typically refers to magnetometers used by military forces to detect submarines (a mass of ferromagnetic material creates a detectable disturbance in the magnetic field). Military MAD equipment is a descendant of geomagnetic survey or aeromagnetic survey instruments used to search for minerals by detecting their disturbance of the ...
If another coil is used to measure the magnetic field (acting as a magnetometer), the change in the magnetic field due to the metallic object can be detected. The first industrial metal detectors came out in the 1960s. They were used for finding minerals among other things. Metal detectors help find land mines.
Surface-towed magnetometers allow for a wider range of detection but have lower precision than near-bottom magnetometers. [6] The most common type of magnetometer used for marine surveying is the fluxgate magnetometer. Fluxgate magnetometers utilize two ferromagnetic cores each wound with a primary coil (in opposite directions) and an outer ...
It had a caesium vapor scalar magnetometer and a fluxgate vector magnetometer. [7] CHAMP , a German satellite, made precise gravity and magnetic measurements from 2001 to 2010. [ 8 ] [ 9 ] A Danish satellite, Ørsted , was launched in 1999 and is still in operation, while the Swarm mission of the European Space Agency involves a "constellation ...