6.1 ac bridge

AC BRIDGE

· Function

-Alternating current bridges are used to measure inductance and capacitance

· Design

-Based on wheatstone bridge

· Feature

-Consists of four impedances, an ac voltage and detector

· Detector

-Detector can be a pair of headphone, Lissajous figure and electronics galvanometer

· Balance

-When Bridge is balance: Z1/Z3=Z2/Z4