LCX_UserManual_en_08_1.pdf - 第108页

Instrument functions R&S ® LCX Series 108 User Manual 1 179.2260.02 ─ 08 "T est Signal V oltage" V aries the test signal voltage level during the measurement process. "Frequency" V aries the frequ…

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Instrument functions
R&S
®
LCX Series
107User Manual 1179.2260.02 ─ 08
2. In the "Functions" tab, select "Dynamic Impedance Measurement".
Figure 8-24: Dynamic impedance measurement menu
This menu provides the parameters to configure the test signal for dynamic impe-
dance measurement.
The required remote commands are described in Section 11.8, "DIMeasure subsys-
tem", on page 198.
How to: see Section 8.8.4.2, "Using the dynamic impedance measurement function",
on page 109
Measurement.............................................................................................................. 107
Sweep Parameter....................................................................................................... 107
Minimum......................................................................................................................108
Maximum.....................................................................................................................108
Interval Type................................................................................................................108
Step Size.....................................................................................................................108
Number of Points........................................................................................................ 108
Abort............................................................................................................................109
Measurement
Starts the dynamic impedance measurement sweep.
The R&S LCX displays a progress dialog until the measurement is complete, see
"Measuring in dynamic impedance measurement mode" on page 109.
Remote command:
DIMeasure:EXECute on page 200
Sweep Parameter
Opens a selection editor to determine the measurement signal parameter that changes
during the entire measurement process.
The R&S LCX varies this parameter within the range between Minimum and Maximum
in constant steps continuously. You can define the increment with the Interval type and
the corresponding settings parameter, either Step Size or "Number of Points"
on page 108.
Specific instrument functions
Instrument functions
R&S
®
LCX Series
108User Manual 1179.2260.02 ─ 08
"Test Signal Voltage"
Varies the test signal voltage level during the measurement process.
"Frequency"
Varies the frequency of the test signal.
"Voltage Bias"
Varies the voltage bias value.
"Current Bias"
Varies the voltage bias value.
Remote command:
DIMeasure:SWEep:PARameter on page 202
Minimum
Sets the first value of the range used for the selected sweep parameter.
Remote command:
DIMeasure:SWEep:MINimum on page 201
Maximum
Sets the last value of the range used for the selected sweep parameter.
Remote command:
DIMeasure:SWEep:MAXimum on page 201
Interval Type
Opens a selection editor to select the mode how the instrument calculates the width or
time between the recorded sweep parameters within the measurement range (Min/
Max).
"Step Size"
Uses the interval between one sweep parameter value to the next,
set with Step Size.
"Number of Points"
Uses the number of values within the range of minimum and maxi-
mum sweep parameter settings, set with Number of Points.
Remote command:
DIMeasure:INTerval:TYPE on page 201
Step Size
Sets the interval between each sweep step within the measurement range Min/Max).
Depending on the selected sweep parameter, the R&S LCX provides the correspond-
ing value and unit.
"xx V"
For Sweep Parameter > Test Signal Voltage or Voltage Bias, sets the
increment in V.
"xx Hz"
For Sweep Parameter > Frequency, sets the time interval in Hz.
"xx A"
For Sweep Parameter > Current Bias, sets the increment in A.
Remote command:
DIMeasure:INTerval:STEPsize on page 201
Number of Points
Sets the number of measurement points within the measurement range (Min/Max).
Remote command:
DIMeasure:INTerval:POINts on page 200
Specific instrument functions
Instrument functions
R&S
®
LCX Series
109User Manual 1179.2260.02 ─ 08
Abort
Aborts a running dynamic impedance measurement process.
Remote command:
DIMeasure:ABORt on page 200
8.8.4.2 Using the dynamic impedance measurement function
The dynamic impedance measurement function records the measurement readings
automatically. The R&S LCX stores the data in a log file with a generically created file-
name, either on the USB flash drive or in the instrument internal memory directory.
The dynamic impedance measurement function acquires the measurement values
from both the currently selected primary and from the secondary measurement pair.
To select the measurement parameter pairs:
► Proceed as described in "Selecting the parameters" on page 73
Remote commands:
FUNCtion:IMPedance[:TYPE][:PRIMary] on page 212
FUNCtion:IMPedance:TYPE:SECondary on page 213
Selecting the memory location
To determine the destination for saving the data file:
► Follow the steps described in "Selecting the memory location" on page 105.
Measuring in dynamic impedance measurement mode
1. Press the [settings] key at the front panel.
2. In the "Functions" tab, select "Dynamic Impedance Measurement".
3. Configure the required settings.
4. Depending on the selected interval type, configure the value for the step size or the
number of points to set the values of the sweep parameter within the range.
5.
To start the dynamic impedance measurement process, turn
"Enabled".
A dialog box appears that shows the progress of the dynamic impedance measure-
ment.
Note: Do not press any buttons on the instrument while the process is running. As
a dynamic impedance process can take a long time, you can abort the measure-
ment with "Abort" on page 109.
When completed, the R&S LCX displays a graphical view of the acquired measure-
ment data. It saves the generated log file with the filename indicated on the upper
left side of the screen.
Specific instrument functions