“hot-wire instrument”的概念、定义、翻译、参考文献-科学参考

hot-wire instrument

Physics

An electrical measuring instrument (basically an ammeter) in which the current to be measured is passed through a thin wire and causes its temperature to rise. The temperature rise, which is proportional to the square of the current, is measured by the expansion of the wire. Such instruments can be used for either direct current or alternating current.

Electronics and Electrical Engineering

A measuring instrument, basically an ammeter, that utilizes the elongation by heat of a thin wire carrying an electric current. The wire is rigidly clamped so that its elongation can be measured. The elongation is proportional to the temperature rise of the wire, which in turn is proportional to the square of the current. Such instruments can therefore be used for either DC or AC measurements. An extremely large resistance used in series with the instrument allows it to function as a voltmeter.

单词	hot-wire instrument
释义	hot-wire instrument Physics An electrical measuring instrument (basically an ammeter) in which the current to be measured is passed through a thin wire and causes its temperature to rise. The temperature rise, which is proportional to the square of the current, is measured by the expansion of the wire. Such instruments can be used for either direct current or alternating current. Electronics and Electrical Engineering A measuring instrument, basically an ammeter, that utilizes the elongation by heat of a thin wire carrying an electric current. The wire is rigidly clamped so that its elongation can be measured. The elongation is proportional to the temperature rise of the wire, which in turn is proportional to the square of the current. Such instruments can therefore be used for either DC or AC measurements. An extremely large resistance used in series with the instrument allows it to function as a voltmeter.
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