Connection Of Sample - Iwatsu SY-8218 Instruction Manual

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4.6 Connection of sample

● A sample is connected to the measurement POD as follows:
■
2-coil method
① Connect the start of the primary turns to P2 terminal
and the end to P1 terminal.
② Connect the start of the secondary turns to S2
terminal and the end to S1 terminal.
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1-coil method
If the secondary turns cannot be applied, measurement
uses 1-coil method. In this case, Core loss Pc
includes the copper loss of the primary turns, therefore
Pcv, Pcm, and θ include its influence. In addition,
make sure to select 1-coil method in Configuration
for measurement.
(For settings, see "5.4 Measuring Method".)
① Connect the start of turns to P2 terminal and
the end to P1 terminal.
② Short-circuit P2 and S2 terminals.
③ Short-circuit P1 and S1 terminals.

It is recmmended that Fixed Parameter by 1-coil method is set in I1m and Hm specification.
Because the secondary turns is not given as for 1-coil method, induced voltage V
directly measure the voltage between the primary turns. In this case, it differs from 2-coil method, and voltage drop in shunt resistance R
exciting current i (t) and equivalent series resistance R
1
Therefore, the measurement might not go well because of the superimposition when I1m or Hm is specified for the target parameter.
Especially, voltage drop in shunt resistance R
the measurement doesn't go well.
Start of
primary turns
Start of
turns
of sample will be superimposed to V
L
and equivalent series resistance R
S
23
B-H ANALYZER SY-8218 / SY-8219
secondary turns
P2 P1 S2 S1
Fig.4-8 2-coil method
P2 P1 S2
Fig.4-9 1-coil method
(t) in the basic measurement principle chart of Fig.2-2 will
2
(t).
2
grows when exciting current i
L
Start of
S1
by
S
(t) grows, and, in addition,
1