Application of Correlation Calibration Method in Crosstalk Between Channels for Multi Channel Acquisition System
Zu Jing · Yibiao jishu yu chuanganqi · 2010
According to the application environment for multi-parameters,low power and small volume,a multi-channel data acquisition system used for three different sampling frequencies was designed.And its hardware composition and analog switch circuit were presented.Based on analyzing the using characteristics of analog switch and its crosstalk between channels during switching,a correlation calibration method with software post-processing was put forward.Experimental results show that the crosstalk problem between channels can be removed effectively.