Keysight E1418A Option 002, Руководство по обслуживанию

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40 Keysight E1418A Service Guide
Verification Tests Performance Verification Tests
printf (“\n\nShort Circuit Output Current Verification Test\n\n”);
for (i = 0;i != num_chan;i++)
{
/** connection instructions **/
printf (“\tChannel %d\n”,i+1);
printf (“1.\tMake a four-wire connection from channel %d \n”,i+1);
printf (“\tto the DMM current input terminals\n”);
printf (“2.\tThe DMM is set to make DC current Measurements on \n”);
printf (“\tthe 100 mA range.\n”);
printf (“3.\tEach channel is set to output 16 V\n”);
printf (“\t\tMeasure the current flowing through the DMM.\n”);
printf (“\n\n”);
pause();
err=viPrintf(dac, “APPLY%d:VOLTAGE %f;*OPC?\n”,i+1,v_out); /* voltage output
*/
if(err VI_SUCCESS) err_handler(dac, err);
err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */
if(err VI_SUCCESS) err_handler(dac, err);
maxcurrent_results [i] = dmm_measure();
err=viPrintf(dac, “OUTPUT%d OFF;*OPC?\n”,i+1); /* Turn output off*/
if(err VI_SUCCESS) err_handler(dac, err);
err=viScanf(dac, “%d”, &opc_check);/* enter OPC integer */
if(err VI_SUCCESS) err_handler(dac, err);
sys_err (dac);/* SCPI error check */
}
printf (“End of Short Circuit Output Current Test”);
err=viPrintf(dac, “*RST\n”);
if(err VI_SUCCESS) err_handler(dac, err);
}
/*** End of maxcurrent_check ***/
/*** Routine to perform the current performance test ***/
void current_check ()
{
float i_out [9] = {0.02F, 0.015F, 0.01F,0.005F, 0, -0.005F,-0.01F, -0.015F,
-0.02F};
/* Currents to output */
int i,j,opc_check; */
char function [6] = {“CURR:DC\0"},range [6] = {”0.100\0"};
dmm_setup (function,range);
printf (“\n\n”);
printf (“DC CURRENT OUTPUT PERFORMANCE TEST\n\n\n\n”);