Signal Pre-distortion for Vibration Table Frequency Response Compensation

One of the problems in vibration testing is the distortion of the test signal amplitude and spectrum when it is converted to vibration on the test bench. A feedback control system can be used to compensate for these unwanted distortions but it difficult to implement as requiring some extra component...

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Bibliographic Details
Published in2022 Conference of Russian Young Researchers in Electrical and Electronic Engineering (ElConRus) pp. 904 - 907
Main Authors Vatnik, Valerii M., Karimov, Timur I., Solnitsev, Remir I., Ostrovskii, Valerii Y., Kulagin, Maksim V.
Format Conference Proceeding
LanguageEnglish
Published IEEE 25.01.2022
Subjects
Distortion
Feedback control
Frequency response
frequency response compensation
signal pre-distortion
system identification
vibration table
vibration testing
Vibrations
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Summary:One of the problems in vibration testing is the distortion of the test signal amplitude and spectrum when it is converted to vibration on the test bench. A feedback control system can be used to compensate for these unwanted distortions but it difficult to implement as requiring some extra components. The purpose of this study is to analyze the frequency response of the vibration table and to create a pre-distorting filter to compensate the distortions introduced by the vibration table. The test signal, before reaching the table, is processed using the developed filter. This approach allows equalization of the frequency response of the table without the need for a feedback control system.
ISSN:2376-6565
DOI:10.1109/ElConRus54750.2022.9755760