Electrical Engineering ⇒ Topic : Andersons Bridge
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Gaurav
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Anderson's Bridge Figure (a) shows the schematic diagram of Anderson's bridge. It is a modification of the Maxwell's Inductance-Capacitance Bridge. FIGURE (A) Let L1 is self-inductance to be measured, R1 is resistance of L1, r1 is resistance connected with L1, r1, r, R2, R3, and R4 are non-inductive resistances, and C4 is fixed standard capacitor. At balance, I1 = I3 ........... (1) and I2 = IC + I4 ............ (2)
Substituting the value of lC from Eq. (5) to Eq. (3), we get
Similarly, using Eq. (5), we get from Eq. (4)
From Eqs. (6) and (7), we get
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