双回转机构的步进电机控制电路由TDA1521音频集成功率放大器组成平衡桥式功率驱动电路，由计算机并行口经过锁存器构成脉冲分配器。

To control stepping motors, the balance bridge power drive circuit is made up by TDA1521 integrated audio power amplifier, the pulse allotter is made up by the parallel ports of computer and latches.

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本文介绍了分配放大器的技术指标及保证这些技术指标所采取的低噪声、高阻抗等具体措施。

This paper discussed the technical data of a amplifier-distributor and some measures that have been adopted in order to realize these data, such as low-noise, high-input impedance, etc.

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接收设备是固定的水箱内室和放大器和分配器组成。

The receiving equipment is fixed inside the tank room and consists of amplifiers and splitters.

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