The signal from sensor head is sampled by a A/D converter,then the digital result is transformed to Manchester code and send to low voltage part by plastic fiber.

• 传感头输出信号经A/D转换器变成数字量后编码成曼彻斯特码,由塑料光纤发送到低压端,用激光供能的方法为高压端的电子器件提供能源。