出典:Wiktionary
magnetometer (複数形 magnetometers)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/29 14:21 UTC 版)
A magnetometer is a scientific instrument used to measure the strength or direction of the magnetic field, produced either in the laboratory or existing in nature. The Earth's magnetic field (the magnetosphere) varies from place to place, for various reasons such as inhomogeneity of rocks and the interaction between charged particles from the Sun and the magnetosphere. Magnetometers are a frequent component instrument on spacecraft that explore planets.
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