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The International Real-time Magnetic Observatory Network (INTERMAGNET) is a world-wide consortium of institutes operating ground-based magnetometers recording the absolute level of the Earth's time-varying magnetic field, [2] [3] [4] to an agreed set of standards.
A vibrating-sample magnetometer (VSM) (also referred to as a Foner magnetometer) is a scientific instrument that measures magnetic properties based on Faraday’s Law of Induction. Simon Foner at MIT Lincoln Laboratory invented VSM in 1955 and reported it in 1959. [ 1 ]
A magnetograph is a magnetometer that continuously records data over time. This data is typically represented in magnetograms. [16] Magnetometers can also be classified as "AC" if they measure fields that vary relatively rapidly in time (>100 Hz), and "DC" if they measure fields that vary only slowly (quasi-static) or are static.
MAD rear boom on P-3C The SH-60B Seahawk helicopter carries a yellow and red towed MAD array known as a "MAD bird", seen on the aft fuselage. A magnetic anomaly detector (MAD) is an instrument used to detect minute variations in the Earth's magnetic field. [1]
A SQUID (superconducting quantum interference device) is a very sensitive magnetometer used to measure extremely weak magnetic fields, based on superconducting loops containing Josephson junctions. SQUIDs are sensitive enough to measure fields as low as 5×10 −18 T with a few days of averaged measurements. [ 1 ]
A home's fair market value is, in a nutshell, the price that a buyer would pay a seller in an open market. Many factors go into determining it, including location, size, age, condition and the ...
Magnetic Data Acquisition System (abbr. MAGDAS) is a system of 50 realtime magnetometers that are being deployed by Kyushu Sangyo University of Fukuoka, Japan, as part of Japan's leading contribution to International Heliophysical Year of the United Nations.
The Pioneer 1 however did collect data on the Van Allen belts. [2] In 1959 the Soviet "Luna 1"/Ye1.4 carried a three-component magnetometer that passed the Moon en route to a heliocentric orbit at a distance of 6,400 miles (10,300 km), but the magnetic field could not be accurately assessed. [2]