Amp Meter Shunt Diagram. July 9 2019 at 1138 pm. The apm amp meter is a general purpose meter for measuring ac dc current for applications including control panels and power supplies.
To construct this circuit we need an op amp. After that connect the shunt resistor in parallel with the current sensor. Ammeter means ampere meter which measures ampere value.
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As we know the unit of current is ampere. Notice the shunt coil is identified as a coil of fine wire with many turns that is connected in parallel shunt with the armature. As shown in the diagram to read the current we must first convert the current to be measured into a voltage by using a known resistance r k. A digital ammeter uses a shunt resistor to produce a calibrated voltage proportional to the current flowing.