电量变送器中开平方算法的研究

按电工学定义实现的微机电量变送器中开平方运算耗时最长。本文首先分析了常用的牛顿迭代和快速查表两种开平方算法的缺点，对其改进，形成了两种自适应混合开方算法，大大提高了开平方运算的速度。

Research The Algorithm of Extracting The Square Root in Electric Transducer

It will take a lot of time to extract the square root in the microprocessor-based eleetric transducer realized on electrotechnical laws.This paper firstly analyzes the shortcomings of the two algorithms of extracting square root,Newton iteration and fast table look up,and improve them to yield two adaptive combined algorithms of extracting the square root. Thus the speed of extracting the square root increases greatly.