Inductance measurement
The inductance measurement is an essential testing procedure for ensuring the electrical and magnetic properties of windings in electric motors, transformers, and coils. By precisely verifying the inductance, deviations in winding wire and lamination stack can be detected at an early stage, ensuring high product quality and process reliability.
Measurement method
The inductance is measured by applying a sinusoidal test voltage, with both amplitude and frequency individually adjustable. This flexibility allows adaptation to different types of test samples and testing requirements. The measurement provides reliable values for the inductance of the winding, enabling monitoring of compliance with all relevant electrical and magnetic parameters.
Evaluation and monitoring
The evaluation of the measurements can be flexibly configured:
- Absolute or relative deviation: Monitoring compliance with specified tolerances.
- Range monitoring: Defining an allowable measurement range.
- Maximum value and spread control: Monitoring the maximum and minimum inductance values as well as their difference.
- Mean deviation: Comparing individual measurement values with the mean to detect outliers or systematic errors.
These evaluation options enable precise quality control and a quick response to deviations in the manufacturing process.
Advantages of the inductance measurement
- Early detection of manufacturing defects and material deviations
- Flexible adaptation to various DUTs through adjustable test voltage and frequency
- Automated evaluation and monitoring of all relevant parameters
- Improved product quality and reduction of scrap
Conclusion
The inductance measurement is an indispensable tool for monitoring and ensuring the electrical and magnetic properties of windings. It enables fast, precise, and automated control of all relevant parameters and makes a significant contribution to quality assurance in the manufacturing process.