BZGK2型保护器直接对传感器二次交流信号采样，所测信号最接近真实值，保证了检测的准确型。
The BZGK2 protector to the sensor take two exchanges signals sampling, the measured signal approaches to the real value, it had guaranteed the examination is accurate.
交流采样是按一定规律对被测信号的瞬时值进行采样，再用一定的数值算法求得被测量的值。
The AC sampling is carried out testing the AC signal based on the certain regulation, and desired the values of the AC signal based on the certain mathematical method.
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