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Definition of "Impedance Bridge" |
A bridge circuit used for measuring resistance and reactance. / Impedance bridge, voltage bridging, or simply bridging connection is one in which the load impedance is much larger than the source impedance. In cases where only the load impedance can be varied, maximizing the load impedance serves to both minimize the current drawn by the load and maximize the voltage signal across load. In cases where only the source impedance can be varied, minimizing the source impedance serves to maximize both the voltage across the load and the current, and therefore maximizing power delivered to the load. / When measuring the value of an alternating current signal it is often necessary to convert the signal into a direct current signal of equivalent value. |
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