Virtual calibration method of performance parameter for capacitive sensor

LabView has been widely used in automatization and measurement instrument.It has a lot of merits compared with traditional instrument.Change of displacement can be converted to voltage by capacitive precisionmeasured instrument.And voltage is easy to be transferred to computer by A/D card ZTIC8310.Multi voltages of different distance can be computed by virtual instrument in LabView and calibration arguments will be got through different formula,such as linearization,and resolving power,etc.These arguments can give exact evaluation to capacitive precisionmeasured instrument.Calibration principle and method of true instrument by virtual instrument are illustrated by follow.