Agilent Technologies B1500A Guide de l'utilisateur télécharger pdf (Page 194)

4-38 Agilent B1500 VXIplug&play Driver User’s Guide, Edition 3

Programming Examples for C++ Users

Breakdown Voltage Measurement

Measurement

Result Example

Vbd = 56.245000 V

ret = agb1500_measureBdv(vi, agb1500_SHORT_INTERVAL, &meas,

&status); /* 25 */

check_err (vi, ret);

ret = agb1500_zeroOutput(vi, agb1500_CH_ALL); /* 28 */

check_err (vi, ret);

if (status = 8){ /* 31 */

printf("Vbd = %9.6f V \n", meas);

}

else {

printf("Error occurred during measurement.\n");

printf("Status code = %d \n", status);

} /* 37 */

ret = agb1500_setSwitch(vi, agb1500_CH_ALL, 0); /* 39 */

check_err (vi, ret);

}

Line Description

25 Performs quasi pulsed spot measurement. Breakdown voltage

will be defined as the voltage that occurs the current compliance

status at the device terminal where the measurement channel is

connected.

28 Sets the specified port to the zero output state.

31 to 37 Displays the measurement result data if the status is normal (8),

or displays error message if the status is abnormal.

39 Disables all ports.

26, 29,

and 40

Calls the check_err subprogram (shown in Table 4-1) to check if

an error status is returned for the previous line.

41 End of the perform_meas subprogram.

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Agilent Technologies B1500A Guide de l'utilisateur Page 194