DESIGNING A CAPACITANCE MEASURING DEVICE USING THE PHASE-METRIC METHOD

Abstract

A measuring device with a capacitive converter is described whose software is implemented in the graphical programming environment LabVIEW. The measuring circuit is assembled on the NI ELVIS workstation (National Instruments Educational Laboratory Virtual Instrumentation Suite), through which the output signals of the measuring circuit are transmitted to the computer and the capacitance of the transducer is measured by the phase-metric method in the LabVIEW environment. The performance analysis and an estimation of precision of the measuring device are performed.