“fluxmeter”的概念、定义、翻译、参考文献-科学参考

fluxmeter

Physics

An instrument used to measure magnetic flux. It is used in conjunction with a coil (the search coil) and resembles a moving-coil galvanometer except that there are no restoring springs. A change in the magnetic flux induces a momentary current in the search coil and in the coil of the meter, which turns in proportion and stays in the deflected position. This type of instrument has been largely superseded by a type using the Hall probe (see Hall effect).

Electronics and Electrical Engineering

An instrument that measures changes in magnetic flux. The most usual type is the Grassot fluxmeter, which consists essentially of a moving-coil galvanometer that is designed so that the restoring couple on the moving coil is negligibly small and electromagnetic damping is large. The galvanometer is used in conjunction with an exploring coil (see flip-coil) of known area. A change in the magnetic flux cutting the exploring coil causes an induced current in the galvanometer coil and hence the latter is deflected. The angle of deflection is directly proportional to the change in magnetic flux through the exploring coil. The instrument is calibrated empirically using a magnetic flux standard.

单词	fluxmeter
释义	fluxmeter Physics An instrument used to measure magnetic flux. It is used in conjunction with a coil (the search coil) and resembles a moving-coil galvanometer except that there are no restoring springs. A change in the magnetic flux induces a momentary current in the search coil and in the coil of the meter, which turns in proportion and stays in the deflected position. This type of instrument has been largely superseded by a type using the Hall probe (see Hall effect). Electronics and Electrical Engineering An instrument that measures changes in magnetic flux. The most usual type is the Grassot fluxmeter, which consists essentially of a moving-coil galvanometer that is designed so that the restoring couple on the moving coil is negligibly small and electromagnetic damping is large. The galvanometer is used in conjunction with an exploring coil (see flip-coil) of known area. A change in the magnetic flux cutting the exploring coil causes an induced current in the galvanometer coil and hence the latter is deflected. The angle of deflection is directly proportional to the change in magnetic flux through the exploring coil. The instrument is calibrated empirically using a magnetic flux standard.
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