FREQUENCY RESPONSE:
Sensors and their MOST important, yet most overlooked parameters
By now we know the importance of sampling real life (analogue) signals and the ability of a sensor to capture as many samples as at least twice the frequency of the highest frequency component of the analogue signal.
Unfortunately, common preference between sensors is cost based and some other trivial parameters as non-linearity, hysteresis, etc., leaving out much more important parameters of sensor frequency response, and sampling rate – a real eye-opener to the serious researcher.
FREQUENCY RESPONSE:
Sensors and their MOST important, yet most overlooked parameters
Sensors with low frequency response, using lower sampling rates, will not capture high frequency components of the analogue signal, and distort the overall signal.
For instance, to track a typical Force-Crank Angle behavior of an engine using a mid-frequency response sensor may not be able to capture all the Transient lateral forces as shown below.
Unfortunately, common preference between sensors is cost based and some other trivial parameters like non-linearity, hysteresis, etc., leaving out MUCH MORE IMPORTANT parameters of sensor frequency response, and sampling rate - a real eye-opener to the serious researcher.
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