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Agilent B1500 VXIplug&play Driver User’s Guide, Edition 3 4-41

Programming Examples for C++ Users

Sampling Measurement

Table 4-14 explains example subprogram that performs sampling measurement.

This example measures current that flows to resistors R1 and R2, and then calculates

the resistance.

Table 4-14 Sampling Measurement Example

void perform_meas (ViSession vi, ViStatus ret) /* 1 */

{

ViInt32 t1 =3; /* SMU3 */

ViInt32 t2 =4; /* SMU4 */

ViInt32 low =1; /* SMU1 */

ViReal64 base =0;

ViReal64 bias =0.1;

ViReal64 icomp =0.1;

ViReal64 vlout =0;

ViReal64 ilcomp =0.1;

ViReal64 base_h =0;

ViReal64 bias_h =0.1;

ViReal64 interval =0.05;

ViInt32 nop =30;

ViInt32 mch[3];

ViInt32 mode[2];

ViReal64 range[2];

ViInt32 point;

ViInt32 index[30];

ViReal64 value[60];

ViInt32 status[60];

mch[0] =t1;

mch[1] =t2;

mch[2] =0;

mode[0] =1;

mode[1] =1;

range[0] =0;

range[1] =0; /* 28 */

Line Description

1 Beginning of the perform_meas subprogram.

3 to 28 Declares variables, and defines the value.

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