In: Anatomy and Physiology
Response time and Linearity is an important factor to
choose a sensor for medical applications.
Explain how can we reduce the time response and increase the
linearity of it.
please given the solution
Resolution and Linearity are two specifications used to describe sensors. But not all specifications are equal indicators of real world performance.
Resolution of a sensor tells you the smallest change in distance that the sensor can detect. Resolution represents the best case condition; but resolution can be impacted by target conditions, distance to the target, sensor response speed, and other factors. For that reason it is not the best indicator of real world perfomance.
Linearity is the maximum deviation between an ideal straight line measurement and the actual measurement. It indicates how closely a sensor"s analog output can approximate a straight line when measuring across the sensor's range. The more consistent the measurement are, the more linear the sensor.
Time response is the required time for sensor output to change from its previous state to a final settled value within a tolerance and band of correct new value.