Faster readings with Agilent 53181 frequency counter
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Hello to all,
I have an agilent 53181 and a 53132 frequency counter. I am trying to get fast measurements (as close to 10 readings/second, if possible), with a 0.1 second gate time. However, the closest I've gotten is only 1 reading ever 0.55 seconds. This is the code I'm using:
freqcounter = gpib('NI', 0, 3);
fprintf(freqcounter, '*RST; OPC?'); %%reset instrument
fprintf(freqcounter, ':FREQ:ARM:SOUR IMM; :FREQ:ARM:STOP:SOUR TIM; FREQ:ARM:STOP:TIM .1'); %%arm with 0.1 gate time
fprintf(freqcounter,' :CALC:MATH:STATE OFF'); %%recommendations
fprintf(freqcounter,':CALC2:LIM:STATE OFF'); %%from
fprintf(freqcounter, ':CALC3:AVER:STATE OFF'); %%agilent
fprintf(freqcounter, ':HCOPY:CONT OFF'); %%app
fprintf(freqcounter, ':ROSC:SOUR INT'); %%notes
fprintf(freqcounter, ':ROSC:EXT:CHECK OFF'); %%to improve
fprintf(freqcounter, ':DIAG:CAL:INT:AUTO OFF'); %%sample rate
fprintf(freqcounter, ':DISP:ENABLE off'); %%turn off display
fprintf(freqcounter, 'FREQ:EXP1.38800000'); %%expected frequency
for ii = 1:10
tic
freq = query(freqcounter, 'READ:FREQ?') %%loop to read 10 times
toc;
end
I wrapped the tic/toc around the frequency query to record the time it takes to send/read. Do you guys have any recommendations or past experiences?
Thank you so much!
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