论文部分内容阅读
针对卡尔逊仪器的应用要求 ,提出了一种程控交变恒流源为激励的比较测量方法 ,对相关电路的技术要求进行了分析 ,并设计实现了基于PC总线的监测单元 ;采取了数字滤波和线性预测的数据处理方法 ,进一步提高了测量精度。工程运行结果表明 ,该测量技术完全可满足 0 .0 1%测量精度的要求。
Aiming at the application requirements of Carlson instruments, a program-controlled alternating constant current source is proposed as a comparative measurement method. The technical requirements of the relevant circuits are analyzed and a monitoring unit based on PC bus is designed and implemented. A digital filter And linear prediction data processing methods to further improve the measurement accuracy. The engineering operation results show that the measurement technology can fully meet the requirements of 0.010% of the measurement accuracy.