2. Measurement shunt
The simplest method involves measuring the voltage across a resistor to determine the current flowing through it. This method is inexpensive and provides good accuracy at low frequencies. The measuring resistor and associated circuit must be temperature-stable and accurate, and free from parasitic terms (series inductance, distributed capacitance) and skin effects that degrade high-frequency response. Their main limitations are the absence of insulation, insertion losses when measuring high currents, and limited bandwidth at high frequencies. Various technologies are available, as described below.
2.1 Layered shunt
Thick-film resistors can currently handle power in the order of a hundred watts, with an overall inductance of the order of 10 nH, mainly due to the...
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Measurement shunt
Current sensors based on direct induction measurement
Article included in this offer
"Conversion of electrical energy"
(
278 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
References
- (1) - - Les capteurs de courant de marque LEM : http://www.lem.com/
- (2) - - Capteur d'induction et de courant de marque Honeywell :
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
