Design of High-precision Multi-functional Meter Based on LabVIEW

In this paper,a high-precision multi-functional measuring system for solving the question of energy quality monitor is accomplished which is based on the technology of virtual instrument.The index and principle of parameter detecting are considered,the hardware acquisition with DSP and the application software with LabVIEW were designed.Compared with the traditional instrument,it has the advantages of high precision,multifunction and being easy to update.Experimental results show that the system can meet the accuracy requirements.