The Design of Field Calibrator for Single-phase Electric Energy Meter Based on DSP

This paper designs field test equipment for single–phase power meter with high –precision and low-cost.The hardware system of the calibrator use digital signal processor TMS320F2812 as the core component,including AC voltage and current sampling,A/D conversion,the power/frequency conversion and human-computer interface circuit.The software system of the calibrator use CCS2000 as the platform,using C language programming.Experiments showed that its measurement precision is above 0.20.