JK2830 Series Operation Manual Chapter 3 Introduction to [DISP]
34
open full-frequency correction. In the process of correction , the following
soft key will be displayed:
◼
CANCEL
This soft key can be used to terminate the current open correction operation
and reserve the formal open correction data.
4)
Press
ON
to turn on the function of open-circuit correction, then JK2830 will
perform open-circuit correction calculation in the later testing process. IF
SPOT FREQ is set as OFF, the open-circuit correction data of the current
frequency will be calculated by imbedding algorithm. When SPOT FREQ is set
as ON, the value of the current test frequency will be that of SOPT FREQ, in
this case, the open correction data of SPOT FREQ will be used to the
calculation of open correction.
5)
Press
OFF
to turn off the open correction function. In later measurement, no
open correction calculation will be taken.
3.6.2
SHORT
The short correction function of JK2830 can eliminate the error caused by
spurious inductance (R, X) in serial with DUT as shown in figure 3-3.
Figure 3-3 Spurious Inductance
JK2830 adopts two kinds of short correction data.
◼
No matter what the current frequency is, JK2830 will execute short correction
test on the 41 fixed frequency points. Except the 41 frequencies, the
instrument will adopt imbedding algorithm to calculate the short correction
data of different test frequencies which correspond to different ranges. Move
the cursor to the
SHORT
zone, and then use the
SWEEP SHORT
soft key to
execute full frequency open correction. The 41 fixed frequencies are the same
as that in open correction.
◼
JK2830 can set 10 short correction frequencies in the
SPOT NO.
and
FREQ
zone on the
<CORRECTION>
page. Move the cursor to
SPOT NO.
and
FREQ
, and then use
SPOT SHORT
to short correct the set frequencies.
Operation steps of short correction function
Short correction includes full frequency short correction which adopts imbedding
algorithm and single frequency short correction on 10 frequencies. Execute the
following operation steps to make short correction. The single frequency short
