phase plot of first order tx func g(s) = 1/Ts+1 continued .... 0:00 HF rolloff thus g(s) = 1/Ts+1 acts as low pass filter 6:00 eg if a sensor has a tx fun modelled as 1/( 0.1 s + 1 ) => T = 0.1 => cutoff freq i.e. 1/T = 10 rad/s ie. bandwidth of the sensor = 10 rad another eg of first order tx func i.e. g(s) = Ts + 1, t > 0 10:00 it behaves as as HP filter