CurrentMessungen

CurrentMessungen refers to the measurement of electric current in electrical circuits and systems. The term is used in German-language technical literature as well as international contexts to describe both instantaneous and time-varying currents, and to compare methods across DC and AC domains.

Measurement methods include direct methods using a low-value shunt resistor, where the current is inferred from the voltage drop; indirect methods such as Hall effect sensors that detect the magnetic field generated by the current; and specialized devices like current transformers for AC, Rogowski coils for wide bandwidth non-contact measurements, and fiber-optic or magnetic sensors for high insulation.

Instrument selection depends on current range, required isolation, bandwidth, and whether DC, AC, or pulsed currents are involved. Shunts provide high accuracy with low burden but introduce voltage drop; current transformers and Rogowski coils offer non-contact measurement suitable for high currents but have frequency-dependent response; Hall sensors may drift with temperature. Calibration and traceability are essential for metrology.

Applications include power distribution monitoring, energy management, industrial automation, automotive electrics, and laboratory instrumentation. Data from CurrentMessungen feed protective relays, metering systems, and control software, and are increasingly integrated with digital data acquisition, logging, and remote monitoring platforms.

Related concepts include electrical measurement, ammeters, shunt resistors, current transformers, Rogowski coils, and Hall effect sensors.