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prissydizzybella5
prissydizzybella5
11.03.2020 • 
Mathematics

) A pressure transducer is used to measure water-pressure at the discharge of a pump. The following specifications are available from the manufacturer: Range: ±800 kPa Hysterisis: ±1% of span Linearity: ±1% of span Repeatibility: ±1.5% of span Stability: ±2% of span To determine the repeatability of the measured pressure, 10 auxiliary tests at the desired average pressure of 700 kPa were run. The standard deviation of these measurements is 10 kPa. In a separate test of the data transmission system, 5 tests of the same pressure input resulted in a standard deviation of 5 kPa. The A/D converter is tested 10 times, resulting a standard deviation of 8 kPa. (10) Calculate the random uncertainty of a single pressure measurement at 95% confidence level. (10) Calculate the systematic uncertainty of the pressure measurement. (10) Calculate the total uncertainty of the pressure measurement. If the pump only works when the discharge pressure is within ±10% deviation from the desired 700 kPa, please comment on the adequacy of this device.

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