In motor testing and development, accuracy isn’t optional, it’s essential.
Torque and speed are two key factors that shows how well a motor is performing. Engineers rely on these measurements to test the motor’s strength, efficiency, and overall quality. To measure them, they use a system called dynamometer.
But even the best dynamometer can give wrong readings if it’s not checked regularly. That’s why calibration is necessary, it keeps the measurements correct and dependable.
What Is Calibration?
Calibration is the process of checking and adjusting an instrument’s readings by comparing them with a known reference value. In dynamometer systems, this usually means applying a known torque using a calibration bar and a weight, and adjusting the system to match that exact value.
Why Calibration Matters
- Accurate Measurements: Without calibration, torque and speed readings can drift, leading to incorrect data. Calibration ensures your results are correct and reliable.
- Prevents Drift: Sensors naturally shift over time due to wear, temperature changes, or electrical noise. Calibration realigns the system to true values, correcting any drift before it affects your results.
- Supports Quality Control: From compliance with standards to internal QA checks, calibrated instruments are a must. You can’t validate performance if your test equipment isn’t verified.
- Enables Consistency: Whether it’s a new product launch or a routine endurance test, consistency matters. Regular calibration ensures that your measurements are repeatable and comparable over time.
Best Practices for Calibration
- Calibrate regularly: especially before key tests.
- Use approved calibration tools: always stick to the tools provided by the manufacturer.
- Log everything: maintain records of calibration dates, conditions, and results for traceability.
- Control the environment: perform calibration in a stable setting to avoid temperature-related fluctuations.
Sugawara Dynamometers: Built for Easy Calibration
Sugawara’s HB-N series dynamometers paired with the DM5001 controller are designed with user-friendly calibration in mind.
- One-button torque calibration using a dedicated jig set.
- Automatic data storage of calibration records.
- Hysteresis brake system that maintains stable torque regardless of speed or temperature.
- Smart software tools for seamless calibration setup and verification.
Conclusion
Calibration isn’t just routine maintenance, it’s the foundation of accurate and reliable motor testing.
Make calibration part of your regular testing workflow. It protects your data, your equipment, and your credibility.