U2829 Series Operation Manual Chapter 3 Introduction to [DISP]
29
Frequency points of OPEN, SHOR and LOAD (
SPOT NO.
,
FREQ
)
Reference values for 3 frequency points of load correction (
REF A
,
REF B
)
There are 16 zones on this page:
Correction
,
Open
,
Short
,
Load
,
Cable
,
CH
Mode
,
Func
,
SPOT NO.
,
FREQ
,
REF A
,
REF B
,
OPEN A
,
OPEN B
,
SHORT A
,
SHORT B
,
LOAD A
,
LOAD B
. Each control function zone will be introduced in the
following paragraphs.
Besides above setting zones, the <CORRECTION> page will also display the
following monitoring zones. The monitoring zones are similar with the setting
zones, but the monitoring zones can only provide reference information and you
cannot change state or parameter of these zones.
Real test results of the load correction (
LOAD A
,
LOAD B
)
The real test results of load correction can be tested on
SPOT NO. 0
to
SPOT
NO. 63
. Channels of the current multiple correction mode can be set through the
multiple-channel sweep interface or IEEE 488 interface.
3.5.1
OPEN
The open correction function of U2829 can eliminate the error caused by the stray
admittance (G, B) parallel-connected with DUT, shown as figure 3-1.
Figure 1 Stray Admittance
U2829 adopts the following two kinds of open correction data:
U2829 will automatically make open correction test on 41 fixed frequency
points no matter what the currently set frequency is. Based on the open
correction data of the following 41 frequencies, the instrument can calculate
all open correction data of different test ranges which corresponds to all test
frequencies. Move the cursor to
OPEN
and then used
ALL
to execute full
frequency open correction.
20 Hz
100 Hz
1 kHz
10 kHz
100 kHz
25
Hz
120
Hz
1.2
kHz
12
kHz
120
kHz
30
Hz
150
Hz
1.5
kHz
15
kHz
150
kHz
40
Hz
200
Hz
2
kHz
20
kHz
200
kHz
50
Hz
250
Hz
2.5
kHz
25
kHz
60
Hz
300
Hz
3
kHz
30
kHz
80
Hz
400
Hz
4
kHz
40
kHz
500 Hz 5 kHz 50 kHz
600
Hz
6
kHz
60
kHz