This may require rapid changes in field voltage due to disturbances on the power system.

这就需要对电力系统中的扰动能迅速地改变励磁电压。

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This Static Locator is a non-contact meter that indicates electrostatic field voltage and polarity on charged surfaces.

该静态定位器，是一种非接触的产品，用于检测静电场励磁电压和极性表面。

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Generator design considerations determine the field current, field voltage, and consequently, the power required for excitation.

发电机的设计要求决定了励磁电流、励磁电压，从而也决定了励磁所需的功率。

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Instead, the coil is pulled through the external magnetic field, which induces a voltage across it.

ECONOMIST: Weighing a kilogram

This concentrates the electric field and minimises the required voltage.

ECONOMIST: Medical technology