- A Composition Analyzer Is Used To Measure The Concentration Of A Pollutant In A Wastewater Stream The Relationship Betw 1 (216 KiB) Viewed 61 times
A composition analyzer is used to measure the concentration of a pollutant in a wastewater stream. The relationship between the measured composition Cm and the actual composition is given by the following transfer function (in deviation variable form): Cm(s) C'(s) e-os A TS + 1 where 0 = 2 min and t= 4 min. The nominal value of the pollutant is C = 5 ppm. A warning light on the analyser turns on whenever the measured concentration exceeds 25 ppm. Suppose that at time t = 0, the actual concentration begins to drift higher, C(t) = 5 + 2t, where has units of ppm and t has units of minutes. At what time will the warning light tum on?