功率计 Boonton4500B GPIB远程控制
viFindRsrc,viFindNext,viParseRsrc
#include "C:\Program Files\IVI Foundation\VISA\WinNT\agvisa\include\visa.h"
#pragma comment(lib,"C:\\Program Files\\IVI Foundation\\VISA\\WinNT\\agvisa\\lib\\msc\\agvisa32.lib")
Char buf_pow[255],buf_time[255];
ViSession vi;
ViSession vi_Boonton;
//打开功率计 Boonton,4500B
viOpenDefaultRM(&vi);
if(VI_SUCCESS != viOpen(vi,GPIB0::28::INSTR, VI_NULL,VI_NULL, &vi_Boonton)){
//仪器打开失败
Return;
}
viPrintf(vi_Boonton,"*CLS\n");
viPrintf(vi_Boonton,"CALC:MODE PULSE\n");
viPrintf(vi_Boonton,"DISP:PARA:MODE MEAS\n");
viPrintf(vi_Boonton,"SENS:CORR:OFFS 0\n");//0dB//外部补偿电平
viPrintf(vi_Boonton,"TRIG:LEV 0\n");//触发电平0
viPrintf(vi_Boonton,"DISP:TRAC:VCENT 0\n");//参考电平
viPrintf(vi_Boonton,"DISP:TRAC:VSCALe 5\n");//db/格 10
viPrintf(vi_Boonton,"TRIG:DEL 0\n");//触发事件位置s 0
viPrintf(vi_Boonton,"DISP:PULS:TIMEBASE 5us\n");//*/
viPrintf(m_gpib.vi_Boonton,"*CLS\n");
//测试功率----------------------------------------------
viQueryf(vi_Boonton,"FETCH:ARRAY:AMEA:POW ?\n","%t",buf);
//TODO 用strtok函数处理
//测试下降沿-------------------------------------------
viPrintf(m_gpib.vi_Boonton,"TRIG:SLOP POS\n");
viPrintf(m_gpib.vi_Boonton,"DISP:PULS:TIMEBASE 100ns\n");
viPrintf(m_gpib.vi_Boonton,"*WAI\n");
viQueryf(m_gpib.vi_Boonton,"FETCH:ARRAY:AMEA:TIM ?\n","%t",buf_time);
viQueryf(m_gpib.vi_Boonton,"FETCH:INTER:MAX ?\n","%t",buf_pow);
viPrintf(m_gpib.vi_Boonton,"*WAI\n");
//测试下降沿-------------------------------------------
viPrintf(m_gpib.vi_Boonton,"TRIG:SLOP NEG\n");
viPrintf(m_gpib.vi_Boonton,"*WAI\n");
viQueryf(m_gpib.vi_Boonton,"FETCH:ARRAY:AMEA:TIM ?\n","%t",buf_time);
viQueryf(m_gpib.vi_Boonton,"FETCH:INTER:MAX ?\n","%t",buf_pow);//均值
viPrintf(m_gpib.vi_Boonton,"*WAI\n");
viClose(vi);
viClose(vi_Boonton);
测试同步的三种方法
1，*WAI //single sweep mode
INIT:CONT OFF
INIT;*WAI
CALC:MARK:MAX;Y?
或者
INIT:CONT OFF
INIT
*WAI
CALC:MARK:MAX;Y?
2.*opc?
3. 3.*OPC
INIT;*OPC
注意事项, Timebase 和Trigger Delay有一个关系：
Argument: Timebase Trigger Delay <arg>
5 nsec/div to 500 nsec/div -4 msec to +100 msec
1 usec/div to 10 msec/div 4000 divisions
20 msec/div to 3600 sec/div -40 to +100 sec
参考文档:4500B_InstructionManual.pdf