Impedance Bridge

An impedance bridge is a precise measuring instrument used to determine the electrical impedance of a component or circuit, which includes resistance, capacitance, and inductance. It works by applying a known alternating current (AC) and adjusting its settings until the unknown impedance balances with a known reference impedance, resulting in a zero or null reading. This balance point allows accurate calculation of the unknown impedance. Impedance bridges are essential in electronics testing, ensuring components function correctly and meet specified standards, particularly in high-frequency or complex electrical systems.