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Hpe5250a_selectcompenfile – Agilent Technologies Agilent E5250A User Manual

Page 253

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Agilent E5250A User’s Guide, Edition 11

8-29

VXIplug&play Driver

Driver Functions

hpe5250a_selectCompenFile

This function specifies capacitance/conductance compensation data file used to
compensate C/G by using hpe5250a_compenC.

Syntax

ViStatus _VI_FUNC hpe5250a_selectCompenFile(ViSession vi,
ViString file_name);

Parameters

vi

Instrument handle returned from hpe5250a_init( ).

file_name

Compensation data file name. Use absolute path. If the value is
NULL string, the default data is used.

Remarks

If you change the compensation data, copy the default data shown below, and
modify the data for your measurement cable. You will need to change the data for
DATA05 and 06, and/or DATA07 and 08 corresponding to your cables. To measure
and change the compensation data, refer to Chapter 6. To get the R, L, and C value,
measure R, L, and C of the cable using the 4284A, and divide them by cable length
(in m). Compensation data must be the value for 1 m length. Do not change the data
format in the file.

# E5250A C Compensation coefficient data table
#
# CAUTION : Do not add or delete "REVISION" line and "DATAxx" line.
# Change the value for R,L,C of DATA05,06,07 or 08.
#
REVISION

A.03.00

#

R [ohm]

L [H]

C [F]

DATA00

74.65E-3

140.00E-9

58.44E-12

# Frame Path 1

DATA01

75.41E-3

90.00E-9

67.13E-12

# Frame Path 2

DATA02

231.41E-3

450.00E-9

178.85E-12

# Card Path High

DATA03

177.56E-3

390.00E-9

135.45E-12

# Card Path Low

DATA04

100.70E-3

400.00E-9

80.00E-12

# Triax Cable [/m]

DATA05

100.70E-3

400.00E-9

80.00E-12

# User Triax Cbl H [/m]

DATA06

100.70E-3

400.00E-9

80.00E-12

# User Triax Cbl L [/m]

DATA07

114.00E-3

544.00E-9

130.00E-12

# User Coax Cbl H [/m]

DATA08

114.00E-3

544.00E-9

130.00E-12

# User Coax Cbl L [/m]

DATA09

0.00E-3

0.00E-9

1.20E-12

# Stray Capacitance

# END of Data