Measuring the Contact Voltage Drop of Relay and Analysis of Data

Measuring the contact voltage drop of a number of relays with high-performance DAS card PCL-818 HG at the same time is introduced in the examination system of relay's reliability, and dealing with the digital value with mathematical arithmetic. Driving the PCL-818 HG, dealing with data and displaying the interface by visual computer language VisualC++6.0 embeded compile language in windows 98 is expatiated.