84
Chapter 4
Calibration and Compensation
Calibration of Open/Short/Load/Low-loss Capacitor
Calibration of Open/Short/Load/Low-loss Capacitor
The calibration data of open/short/load/low-loss capacitor is measured according to the
following procedure.
Step 1. Selection of measurement point for calibration/compensation
a.
Right-click to open the shortcut menu and click
Cal/Comp
(or press
).
b.
Click the
Cal Menu
button.
c.
Click to open the
Cal Type
box and select the desired calibration/ compensation
measurement point mode.
Step 2. Measurement of open calibration data
a.
Connect the open standard (OS) to the terminal used as the calibration reference plane.
NOTE
When connecting a standard (open, short, load, low-loss capacitor) included in the E4991A
calibration kit to the 7-mm terminal, firmly tighten it with the supplied torque wrench. If
calibration data is measured when the standard is not adequately secured, this will degrade
the repeatability of later measurements.
b.
Click the
Meas Open
button and measure the open calibration data.
NOTE
When you want to interrupt measurement of calibration data, click the
Abort Cal Meas
button shown during measurement.
When the measurement of each type of calibration data is finished, a check mark (
√
) will
appear to the left side of the corresponding calibration execution button. This mark
indicates that the calibration data is stored.
Step 3. Measurement of short calibration data.
a.
Connect the short standard (0
Ω
) to the terminal used as the calibration reference plane.
b.
Click the
Meas Short
button and measure short calibration data.
Step 4. Measurement of load calibration data.
a.
Connect the load standard (50
Ω
) to the terminal used as the calibration reference
plane.
b.
Click the
Meas Load
button and measure the load calibration data.
Step 5. Measurement of low-loss capacitor calibration data.
Cal Type
Box
Calibration/Compensation Measurement
Point Mode
Fixed Freq&Pwr
Fixed frequency/fixed power point
FixedFreq, UserPwr
Fixed frequency/user-defined power point
User Freq&Pwr
User-defined frequency/user-defined power
point
Summary of Contents for E4991A
Page 6: ......
Page 24: ...18 Contents ...
Page 80: ...74 Chapter3 Setting Measurement Conditions Averaging Measurement Results ...
Page 220: ...214 Chapter9 Setup and Use of Control Management Functions System Recovery ...
Page 338: ...332 AppendixB Probe Station Connection Kit Option 010 OPEN SHORT LOAD Calibration ...
Page 428: ...422 AppendixD Menu References Menu References ...
Page 482: ...476 AppendixI Messages Wait measuring comp standard ...