A measurement system consists of a chromel-alumel thermocouple (with cold junction com- pensation), a millivolt-to-current converter...

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A measurement system consists of a chromel-alumel thermocouple (with cold junction com- pensation), a millivolt-to-current converter and a recorder. Table Prob. 1 gives the model equa- tions, and parameters for each element. Assuming that all probability distributions are normal, calculate the mean and standard deviation of the error probability distribution, when the input temperature is 117 °C. Chromel-alumel e.m.f-to-current Recorder thermocouple converter E = C, + C,T+ C,T² i= K,E+ K,EAT, + K,AT, + a, T= K,i + az C, = 0.00 C, = 4.017 x 10? C, = 4.66 x 10- Model equation K, = 3.893 AT =-10 ā = -3.864 KM = 1.95 x 10-4 K, = 2.00 x10- K, = 6.25 āz = 25.0 Mean values Standard deviations oc = 6.93 x 102 O, = 0.14, OAr, = 10 OK = OKM= OK = 0 0, = 0.30 Ox = 0.0 %3D %3D %3D A measurement system consists of a chromel-alumel thermocouple (with cold junction com- pensation), a millivolt-to-current converter and a recorder. Table Prob. 1 gives the model equa- tions, and parameters for each element. Assuming that all probability distributions are normal, calculate the mean and standard deviation of the error probability distribution, when the input temperature is 117 °C. Chromel-alumel e.m.f-to-current Recorder thermocouple converter E = C, + C,T+ C,T² i= K,E+ K,EAT, + K,AT, + a, T= K,i + az C, = 0.00 C, = 4.017 x 10? C, = 4.66 x 10- Model equation K, = 3.893 AT =-10 ā = -3.864 KM = 1.95 x 10-4 K, = 2.00 x10- K, = 6.25 āz = 25.0 Mean values Standard deviations oc = 6.93 x 102 O, = 0.14, OAr, = 10 OK = OKM= OK = 0 0, = 0.30 Ox = 0.0 %3D %3D %3D