Question: Du5394 During a step function calibration, a first order instrument is exposed to a step change of 100 units at time to sec as shown

 Du5394 During a step function calibration, a first order instrument is

Du5394 During a step function calibration, a first order instrument is exposed to a step change of 100 units at time to sec as shown in below figure. At t=1.5 sec, the instrument indicates 80 units. (a) Estimate the instrument time constant (t). (b) Estimate the %error in the indicated value by the instrument at t=2 sec. u(t) 100 Figure 0 1 (sec)

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