The Design and Implementation of Measurement System for Linear Displacement Based on Virtual Instrument

摘要

The design of a measurement system for linear displacement adopts the virtual instruments technology. Making use of the portable computer and USB data acquisition card as well as the LabVIEW workbench realizes the automatic measurement of linear displacement. The displacement measurement system based on virtual instruments is composed of linear variable differential transformer, relevant signal conditioning circuit, data acquisition card and computer, etc. This system has many advantages such as stable working performance, high accuracy and portability. It also realizes computerized and network measurement, improving the efficiency and quality of Displacement Detection, forming the base of the long-distance Measurement of Linear Displacement data.