THE AMMETER


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THE AMMETER
THE AMMETERMost of the electric measuring instruments in use today require very little current to produce a needle movement or digital indication. A resistance is used to restrict the current applied to the meter's sensitive circuitry when a relatively high voltage or current is being measured. If calibrated resistors are used for the restriction, the accuracy of the meter remains high, and the meter's indication range is extended.When a resistance is connected in parallel with the terminals of a meter, it is called a shunt resistance. A shunt resistance, also called an instrument shunt, can be defined as a particular type of resistor designed to be connected in parallel with a meter to extend the current range b…
Citation
Thomas K. Eismin: Aircraft Electricity and Electronics, Sixth Edition. THE AMMETER, Chapter (McGraw-Hill Professional, 2014), AccessEngineering Export