Heavy current measuring by shunt resistor - passes current over two-region resistor, with identical inductivity, but different resistance per region

摘要

The heavy current measuring involves passing the current through a shunt resistor (SW) with two adjacent regions (B1, B2) of equal inductance, but different specific resistance, thus inducing a total voltage drop across the entire length of the shunt resistor and partial voltage drops across the regions. The voltage drops produced by passsing the measurement current are evaluated according to a relationship in which the output voltage = total voltage drop - 2 x partial voltage drop, where the partial voltage drop is the voltage across one or the other region. USE/ADVANTAGE - For heavy AC without influence of own inductance.