ABSTRACT
Sensors are vital means for scientists and engineers to observe physical phenomena. They are used to measure physical variables such as temperature, pH, velocity, rotational rate, flow rate, pressure, and many others. Most modern sensors output a discrete-time (digitized) signal that is indicative of the physical variable they measure. Those signals are often imported into digital signal processing (DSP) hardware, stored in files or plotted on a computer display for monitoring purposes.
