Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter 91
Measurement Applications (Sample Programs)
Executing OPEN/SHORT/LOAD Correction
Executing OPEN/SHORT/LOAD Correction
This application program executes the OPEN/SHORT/LOAD correction in the
E4981A.
The program of Example 9-2 is described in detail below. Each explanation
below is inserted as a comment line in the program. For details on the VISA
functions, refer to the I/O Library Suite manual.
Configuration Define Variables and initialize the program.
Open Instrument Assigns a USB address or GPIB address to the I/O bus.
Setup Start Presets the E4981A. Sets the measurement conditions and
the LCD display.
Setup End Closes the I/O bus.
ErrorProc Displays an error number when an error occurs.
ErrorCheck A subroutine to check whether an error occurs when the IO
Library Suite function is executed.
SelectMode A subroutine to change assignment of the I/O bus and
address setting according to the connection type i.e. USB
or GPIB between the E4981A and a PC.
FnComp A function which performs OPEN/SHORT/LOAD correction
and returns 1 on success and 0 on failure.
Save_Corr_File A function which reads the E4981A correction data such as
Frequency, Primary and Secondary parameters correction
values for Open/Short/Load, Standard values for
Open/Short/Load, Cable length and Phase Shift and then
saves this data in a text file.
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