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Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 17
Measure Frequency Use [SENSe:]FREQuency:APERture <time>,(@<ch_list>) to configure
the frequency counter channels’ measurement interval.
Use [SENSe:]FUNCtion:FREQuency (@<ch_list>) to configure channels
to measure signal frequency.
To measure frequency at channel 45 with aperture of 1 second
*RST
TRIGGER:TIMER .2
Alg executes at .2 sec intervals
SENS:FUNC:FREQ (@145)
ch 45 is frequency counter
SENS:FREQ:APER 1,(@145)
meas and avg sig periods for 1S
ALG:DEF ’ALG1’,’writecvt(I145,45);’
alg puts frequency in CVT
INIT
start algorithm execution
do loop
SENS:DATA:CVT? (@45)
get frequency from CVT
read value from CVT query above
end loop
Figure 10. Input Frequency