Specifications

5-17
The 4263B’s transformer measurement function enables the measurement of the N, M, L
1
, and the
DC resistance of the primary by changing measurement circuit connections with an internal switch.
Figure 5-24 shows a simplified schematic block diagram for the transformer measurement function
of the 4263B. A test signal is applied to the primary and L
1
is calculated from the measured values
of V
1
and I
1
. M is calculated from V
2
and I
1
. N is obtained from the ratio of V
1
and V
2
. In the DC resis-
tance measurement, the applied voltage at the Hcur terminal is DC. The DC resistance value is calcu-
lated from measured DC voltage V
1
and current I
1
.
Using the Agilent 16060A transformer test fixture with the 4263B permits the L
2
and DC resistance
measurement for the secondary, along with all the parameters for the primary. The circuit connec-
tion diagram of the 16060A is shown in Figure 5-25.
Figure 5-24. 4263B transformer measurement function schematic block diagram
Figure 5-25. 16060A circuit connection diagram