A Calibration Method for Acoustic Space Charge Measurements Using Multilayer Samples

Area of Science:

• Dielectric materials science
• Electrical insulation engineering
• Metrology for charge measurement

Background:

• Accurate measurement of space charges in dielectrics is crucial for material characterization and performance assessment.
• Existing space charge measurement methods require reliable calibration and characterization of equipment for standardized results.

Purpose of the Study:

• To present a novel method for applying known charges to dielectric samples for calibration purposes.
• To enable comparison between measured and applied charges using acoustic and thermal methods.
• To facilitate the measurement of resolution and accuracy in space charge measurement systems.

Main Methods:

• Development of a technique to inject known quantities of charge into dielectric samples.
• Experimental validation using single-layer and multilayer flat samples.
• Comparison of results obtained from the new calibration method with existing techniques.

Main Results:

• The presented method allows for the application of precisely known charges to dielectric samples.
• Experimental validation confirmed the method's utility for calibrating acoustic and thermal space charge measurement systems.
• The technique demonstrated its capability in assessing the resolution and accuracy of measurement systems.

Conclusions:

• The developed method provides a standardized approach for calibrating space charge measurement equipment.
• This technique is vital for ensuring the reliability and comparability of space charge measurements in dielectrics.
• The method contributes to advancing the field of dielectric material characterization and electrical insulation diagnostics.