alternating-current_controller

1.The DSP-based excitation controller adopts many advanced technologies, such as alternating current sampling, digital pulse and FFT etc.
文中提出的这种基于DSP的励磁控制器采用了许多先进技术，如交流采样、数字脉冲、FFT等。
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2.The controller case includes stepping motor, self-coupling voltage regulator, alternating-current contactor, relay and micro-transformer.
控制柜主要包括步进电机、自耦调压器、交流接触器、继电器以及微型互感器等。
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