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) ............ (3) .............. (4) .................. (5) Substituting the value of lC from Eq. (5) to Eq. (3), we get ........... (6) Similarly, using Eq. (5), we get from Eq. (4) .............. (7) From Eqs. (6) and (7), we get .............. (8) | |
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