Question

Problem 4 (20 points) A stain gauge differential pressure transducer with a range of 0 to 100 psi is to measure a pressure difference of 50 psi, with the following specifications: Output range: 0 to 10 Volts Linearity Error: +/-0.1% of reading Hysteresis Error: +/- 0.05% of reading Sensitivity Error: +/-0.01% of reading When transducer is installed for its intended use, installation effects are estimated to affect its reading by 0.1 psi. The output is measured using a 12 bit A/D converter with input range of 0 to 10 volts. The analog voltages recorded by the A/D converter are accurate to within +/-0.1% of the readings. Estimate the uncertainty associated with the differential pressure measurement using the installed pressure transducer-A/D converter system.

Answer 1

Given data. solution: diftential stain A pressure galege with o to 100 a range transducer => specifications tut put range o to lovolts due to linearty Error=u, == Ool % Uncertainity uncertainity due to tistevesis Enroy =4<= +0.05% due to Sensitivity Error=4 = 10.01% un certainity be ditt, to measured =50psi pressure Installation Effects = 0,1 poi due to Error due to Install Effects so uncertainity Error Value 0. 44 X 600 - 58 I 0:51. due to . uncertainity converter Ug = - toily. Acuracy of Mo

so associated the Effective un certainity with the Measurement ve = v ur+42 +42 +4 +45 He = 8.1)*7 @08) 78.013'+0.57'+8.02 + On 522 ./. le