一种误差矫正系统、方法和电能表
By optimizing the wiring method on the meter calibration platform and aging frame of the electricity meter, and combining it with the linear interpolation method, the error caused by DC bias is calculated and corrected, thus solving the measurement error problem of DC electricity meters when the temperature changes, and achieving higher metering accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG CHINT INSTR & METER
- Filing Date
- 2025-12-08
- Publication Date
- 2026-07-17
AI Technical Summary
DC energy meters cannot uniformly compensate for measurement errors caused by changes in DC bias value when the ambient temperature changes, resulting in poor metering accuracy, especially at high and low temperatures, where the error is significant and cannot meet the requirements for metering accuracy.
An error correction system is adopted to obtain the monitoring pulse frequency or power of the electricity meter through the calibration platform under different ambient temperatures, calculate the error, and use linear interpolation method combined with real-time temperature to correct the error offset. This includes optimizing the wiring method of the calibration platform and aging meter frame to reduce wiring complexity.
It improves the measurement accuracy of electricity meters at high and low temperatures, meets the metering needs of more application scenarios, and significantly improves the efficiency of mass production and the effect of error compensation.
Smart Images
Figure CN121299570B_ABST