For AC voltage measurement, an RMS converter circuit or a precision rectifier circuit convert the AC signal into a DC voltage.
对于交流电压测量﹐利用有效值转换电路或精密整流器电路将交流信号转换成直流电压。
2
It is based on the principle of vector summation. Using precision rectifier, the AC signal transfers into DC signal.
它基于矢量求和的原理，使用精密的整流器，把交流信号转换成直流信号处理。
3
Then the sensor output signal, amplified by the rectifier to change the coil current until the coil back to bit, its current strength and the object's gravity is called proportional.