Networked Virtual Instrument Test and Measurement System
Based on LabVIEW
Abstract
Experiment teaching has been playing an increasingly important role in high education. It's a key measure to improve the students' ability. Virtual Laboratory appears with the devel- opment of computer technique and Virtual Instrument technique. As an essential and benefic- ial supplement to the traditional experiment, virtual experiments not only save a lot of educat- ion funds, but also extend the experiments in time and space effectively. It has the vast applie- d foreground in the education and research realm. Virtual Laboratory is a new development direction of the experiment teaching as well as an active research topic recently. Therefore, the development of the virtual laboratory of network is very necessary. Virtual Instrument Technology being applied to network construction can develop its preponderance-“The Soft ware is the Instrument” and help to form distributed network measuring system to accomplish data and instruments sharing for experiment teaching & learning or distant test control.
This subject regards LabVIEW 8.2 of U.S.A. NI Company as the engineering workbench of software, is based on mathematics model of the network testing system, to set up sub VI of virtual laboratory user login system, and embed some virtual instruments Sub VI, and then design the motor experiment that the series can be applied to simple Virtual Laboratory system. This thesis introduces the research background of the subject at first, make a general survey of this research current situation at home and abroad, and has pointed out the significance of research; Then introduced the research object ―― virtual instrument, has explained its definition, composition, function, characteristic and development prospect; Then has introduced the development environment of the virtual instrument ――LabVIEW software, has summarized the characteristic of LabVIEW software, has introduced its operation tool briefly, Then direct against the experiment designed especially ―― Network Virtual Laboratory System, have done detailed exposition from the respects , such as model setting up, function introduction, procedure proving, experimental result, etc. It is a conclusion of this thesis finally, to designing and summarized and looked forward to future entirely.