To enhance the quality of manufacturing as responsibility, build national brand of measurement!
To enhance the quality of manufacturing as responsibility, build national brand of measurement!
不是的！
带宽与准确测量的频率范围，是不同的概念。尤其是你说的电机测试系统，通常功率测量准确度是重要的技术指标。
带宽一般是指-3db带宽，输入信号频率为带宽对应频率时，输出衰减为输入的70.7%，幅值误差约30%，角度误差为45°。作为功率测量而言，已经失去意义。
电机测试系统，需要的是准确测量，按照国家标准要求，一般电压、电流系统准确级需满足0.2级或0.5级。
至于测试系统的准确测量的频率范围，需要看具体的技术指标和校准证书。
最好的办法就是根据您的实际试验需要的频率范围，要求厂家出具对应的校准证书。
China's leading enterprise in variable frequency power measurement and metering
National variable frequency power measuring instrument (metering station) founder
Research and development unit of national variable frequency power metering standard