目的探讨正弦调制电流对实验性肾功衰竭的治疗作用。
Objective To observe the effect of modulated frequency sinusoidal electrotherapy on experimental renal failure in rabbits.
分析测量误差与调制电流大小的关系，进而确定短距离测距的最佳实验条件。
The measurement error is found to decrease with the increase of the modulation current and this relation is applied to finding the optimum experimental condition for the short distance measurement.
前级采用电压单环调制方式，后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。
The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.
根据这两项指标，需要确定适当的激光器偏置电流和调制电流，并且偏置电流和调制电流需要随温度的变化而变化。
According to the performances, the bias current and the modulation current of the laser should be ascertained appropriately and should vary with the change of the temperature.
在调制驱动电路中，采用MAX3263芯片，具备标准的PECL电平接口，可以灵活地调整激光器的预置电流和调制电流，并具备自动功率控制功能。
In modulation driving circuit, with the chip MAX3263, being the function of APC, there is standard PECL level interface to modulate laser modulation current and preset current neatly.
在调制驱动电路中，采用MAX3263芯片，具备标准的PECL电平接口，可以灵活地调整激光器的预置电流和调制电流，并具备自动功率控制功能。
In modulation driving circuit, with the chip MAX3263, being the function of APC, there is standard PECL level interface to modulate laser modulation current and preset current neatly.
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