Principles of current measurement
Probes for current measurement in power electronics
Article REF: D3085 V1
Principles of current measurement
Probes for current measurement in power electronics

Authors : François COSTA, Patrick POULICHET

Publication date: November 10, 2005, Review date: February 25, 2025 | Lire en français

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1. Principles of current measurement

1.1 Current transducer measurement constraints in power electronics

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1.1.1 Metrological characteristics expected of a sensor

The choice of a current transducer depends on three types of constraints:

  • electrical constraints of the signal to be measured: amplitude, frequency, dynamic variations (dI/dt), presence of a DC component, electromagnetic environment;

  • environmental constraints: operating temperature, vibration, insulation, available...

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