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Air pressure in a pressure vessel can rise or fall at up to 2.5kpa/s.The pressure is
sampled every 0.5 seconds.If range of the the pressure indication is 0 to 1500
kPa, what is the max value of the error due to sampling in % of Span
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Answer Posted / rizwan afzal
Dear
change in pressure can be +2.5kpa/s or -2.5kpa/s. while
sample rate is 0.5 sample per sec and range is 0 to 1500Kpa
so error is
e=0.5s*2.5kpa/s
e=1.25kpa
now to calculate percentage of error
%e=(100*1.25Kpa)/1500kpa
%e= 0.0833%
keep in mind error can be +0.0833% and -0.0833%
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