数据采集系统通道间串扰的测试和评价方法

摘要

介绍了数据采集系统通道间串扰的成因。根据JJF1048-1995《数据采集系统校准规范》分别对直流信号对直流通道、交流信号对直流通道以及交流信号对交流通道的串扰能力进行测试、计算和评价，对实验结果进行了分析和总结。研究结果表明了对数据采集系统通道间串扰评价的重要性。%The cause for channel-to-channel crosstalk of data acquisition system is introduced.According to JJF 1048-1995C.S. of Data Acquisition System crosstalk effects are tested,calculated and evaluated in cases of DC signal crosstalk in a DC voltage channel, AC signal crosstalk in a DC voltage channel and AC signal crosstalk in an AC voltage channel. Experimental results are analyzed and summarized. Research achievements show the importance of evaluation for channel-to-channel crosstalk of data acquisition system.