Programming the E5250A

Using the Capacitance Compensation Routine

1.Measure R, L, C of your cable using the 4284A. Measurement setup is as follows:

GUARD (C)

GROUND (E)

 

GROUND (F)

GUARD (D)

 

 

Insulator

 

FORCE or SENSE (A)

Triaxial Cable

 

 

FORCE or SENSE (B)

Measurement

Measurement

Measurement

Measurement

Parameter

Frequency

Function

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.

2.Overwrite the R, L, C data in the program lines listed below. The data must be in per meter values.

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

Original program defines initial data by DATA statement in the "Rlc_data" block as shown below:

1350

Rlc_data:

!

L [H]

C [F]

 

1360

!

R

[ohm]

 

:

 

 

:

:

:

!User Triax Cbl H

1420

DATA 100.70E-3, 400.00E-9, 80.00E-12

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

:

 

 

:

:

:

 

Agilent E5250A User’s Guide, Edition 9

6-31

Page 167
Image 167
Agilent Technologies Agilent E5250A manual Measurement Parameter Frequency Function Terminals a