Agilent Technologies Agilent E5250A User Manual
Page 167
Agilent E5250A User’s Guide, Edition 11
6-31
Programming the E5250A
Using the Capacitance Compensation Routine
1. Measure R, L, C of your cable using the 4284A. Measurement setup is as
follows:
2. Overwrite the R, L, C data in the program lines listed below. The data must be in
per meter values.
Original program defines initial data by DATA statement in the "Rlc_data" block
as shown below:
1350 Rlc_data: !
1360
!
R [ohm]
L [H]
C [F]
:
:
:
:
1420
DATA 100.70E-3, 400.00E-9, 80.00E-12 !User Triax Cbl H
1430
DATA 100.70E-3, 400.00E-9, 80.00E-12 !User Triax Cbl L
1440
DATA 114.00E-3, 544.00E-9, 130.00E-12 !User Coax Cbl H
1450
DATA 114.00E-3, 544.00E-9, 130.00E-12 !User Coax Cbl L
:
:
:
:
FORCE or SENSE (A)
FORCE or SENSE (B)
Insulator
Triaxial Cable
GUARD (C)
GUARD (D)
GROUND (F)
GROUND (E)
Measurement
Parameter
Measurement
Frequency
Measurement
Function
Measurement
Terminals
a
R
1 kHz to 1 MHz
b
−
A and B
L
SERIES
see note
c
C
PARALLEL
A and C
a. See figure above.
b. Select 1 point in the frequency range.
c. For triaxial cable, connect B to F directly, and measure L
between A and E.
For coaxial cable, connect B to D directly, and measure L
between A and C. Ignore E and F.
Program Line No.
Defines R, L, C value of
1420
Triaxial cable for C meter High terminal
1430
Triaxial cable for C meter Low terminal
1440
Coaxial cable for C meter High terminal
1450
Coaxial cable for C meter Low terminal