Power Meter Self-Calibration Using Stored Characterization Data
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Solution Overview
Problem
Power metering systems tend to drift and lose accuracy over time, necessitating effective recalibration to maintain accurate power monitoring in facilities.
Innovation Solution
The system incorporates a data processing module with voltage and current modules, including transducers and characterization data for error correction, allowing for recalibration and ensuring accurate power monitoring by periodically updating sensor data and applying correction factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If power metering systems are installed to monitor power consumption, then power monitoring capability is provided, but accuracy drifts and is lost over time
Solution Approach 1:
The system performs preliminary calibration during manufacturing to establish baseline accuracy, then automatically performs periodic self-calibration using stored characterization data and correction factors to maintain accuracy without requiring external recalibration equipment
Solution Approach 2:
The system continuously monitors its own measurement accuracy by comparing readings against stored characterization data and applies real-time correction factors to compensate for drift, creating a closed-loop feedback mechanism that maintains measurement precision over time
2Measurement precision
If recalibration is performed manually to restore accuracy, then measurement precision is restored, but system downtime and operational disruption occur
Solution Approach 1:
The power meter performs automatic self-calibration using internally stored characterization data and correction factors, eliminating the need for external calibration equipment and manual intervention, thereby maintaining continuous operation without downtime
Solution Approach 2:
Characterization data and correction factors are pre-loaded into the system during manufacturing, enabling the meter to perform rapid self-calibration at any time without requiring external equipment or technician intervention
3Measurement precision
If complex recalibration procedures are implemented to maintain accuracy, then measurement precision is maintained, but device complexity increases
Solution Approach 1:
The system automatically manages its own calibration by applying correction factors from stored characterization data without requiring external calibration equipment or complex manual procedures, simplifying the overall system while maintaining precision
Data Source
AI summary
A system for the configuration of power meters.