Agilent Technologies 4294A Programming Manual page 196

Application Sample Programs
Measuring Dielectric Material
NOTE
In order to define the LOAD standard using the values Cp and G, the OPEN standard and
LOAD standard must be defined inversely.
NOTE Because the OPEN and LOAD standards are defined inversely, the commands for
measuring the OPEN and LOAD compensation data are also used inversely.
Lines 2690 to 2730 The Input_t subroutine.
Lines 2750 to 2890 The Input_d subroutine.
Lines 2910 to 3100 The Sweep subroutine.
Lines 3120 to 3230 The Calc subroutine. Using the Cp_data and D_data arrays, calculates
Lines 3250 to 3350 Sets the softkey labels and the subroutines to be executed when each
Lines 3370 to 3580 Processing when the softkey labeled as "er' - tan d" is pressed.
Lines 3600 to 3810 Processing when the softkey labeled as "|er| - tan d" is pressed.
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air capacitor is used as the LOAD standard.
Lines 2230 to 2260: Waits until you adjust the distance between
the electrodes so that the limit test results display PASS (an
appropriate air capacitor value is obtained) and press the
key.
Lines 2270 to 2300: Checks the limit test result.
Lines 2330 to 2340: Retrieves the measurement result (Cp) and
stores it into the Load_c variable for the LOAD standard value.
Lines 2360 to 2410: Sets up the measurement conditions used
when performing fixture compensation.
Lines 2420 to 2470: Defines the values of each
OPEN/SHORT/LOAD standard.
Lines 2490 to 2640: Measures the compensation data for each of
OPEN/SHORT/LOAD.
Lines 2270 to 2820: When you use electrode A or B, sets the
electrode diameter from the values already set in the variables
within the program.
Lines 2830 to 2870: When you use electrode C or D, sets the
electrode diameter from user input.
Lines 2920 to 2930: Waits until you insert the MUT into the
16451B and press the
Lines 2940 to 3000: Measures Cp and D.
Lines 3010 to 3090: Retrieves the measurement results and stores
them into the Cp_data and D_data arrays.
the complex relative permittivity and the dielectric dissipation factor.
key is pressed. Then, waits until you press one of the softkeys.
Displays the real part of the complex relative permittivity (
trace A and the dielectric dissipation factor as trace B.
Displays the magnitude of the complex relative permittivity
key.
Continue
Continue
ε
) as
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r
13