Optimization of low-pass filter parameters to reduce the delay time of
sensor signals in automatic control systems
- Darya Denisenko ,
- Andrey Ignatovich ,
- Ivan Shcherbinin ,
- Nikolay Prokopenko ,
- Yuri Inanov
Abstract
A study was made of ways to minimize the delay time of signals from
sensors for which it is necessary to convert an alternating output
voltage into a direct voltage proportional to it. It is shown that this
delay can be reduced by optimizing the parameters of the low-pass
filters, taking into account the given suppression of variable signals
in the stopband. The circuits of Chebyshev and Butterworth filters from
the first to the sixth order are investigated, their comparison with
each other in terms of the delay of the main signal and the efficiency
of suppression of its harmonics outside the operating frequency range is
given. The results of modeling the amplitude-frequency and transient
characteristics of a low-pass filter in the Micro-Cap 12 environment for
the case of its use in a transformer angle sensor are presented.