Summary:Using a shunt to measure current is a simpler and more cost-effective alternative to using a sensor ...
Using a shunt to measure current is a simpler and more cost-effective alternative to using a sensor for current measurement. However, shunts are precision measurement devices and many things need to be considered to achieve the required measurement accuracy.
How does the shunt work?
A shunt is a low ohmic value resistor that can be used to measure current. When the measured current is outside the range of the measuring device, a shunt is always connected in parallel to the measuring device so that the entire current flows through the shunt and a voltage drop occurs, and the voltage drop is measured; using Ohm's law and a known resistance, it can be obtained by This voltage drop is used to calculate the current (I = V/R). To minimize power loss (generated heat), the shunt must have a very low resistance value in milliohms.
Shunts are basically suitable for any type of current measurement, including DC and AC currents.
Advantages of shunts for current measurement:
Shunts can quickly detect and eliminate faults, making them ideal for safety-related applications where fault detection is required;
They also provide precise measurement results for efficient control of drives or monitoring of battery management systems;
The shunt is great value for money.
China Manganin Shunts Manufacturers
English