Dynamic Error Appraisal of the Primary Transducer in the Sensor Structure of the Physical Quantity
Leontiy K. Samoylov, Darya Yu. Denisenko, Nikolay Nikolayevich Prokopenko · 2020
In many cases, the primary transducer (PT) of a physical quantity sensor converts (normalizes) a variable physical quantity into an electrical signal. The dynamic error of the PT is determined by the delay time in the PT and the first derivative of the signal. In this article, the amplitude-frequency response (AFR) of the PT was approximated by the frequency response of the Butterworth filter. The use of application programs made it possible to obtain numerical estimates of the delay time in the PT. For the case of the unlimited spectrum under consideration, the first derivative of the PT signal does not differ from the value obtained using the Bernstein inequality. The final calculations showed a significant effect of the dynamic error on the total error of the PT.