Open AccessSIGNAL PHASE SHIFTS DURING THE MEASUREMENT OF VIBRATION PARAMETERS
Author(s) -
к.т.н. Передерко А.Л.
Publication year - 2020
Publication title -
perspektivnì tehnologìï ta priladi
Language(s) - English
Resource type - Journals
ISSN - 2313-5352
DOI - 10.36910/6775-2313-5352-2020-16-13
Subject(s) - vibration , acoustics , signal (programming language) , displacement (psychology) , shock (circulatory) , acceleration , transducer , measure (data warehouse) , active vibration control , phase (matter) , metrology , vibration control , engineering , computer science , physics , optics , medicine , psychology , classical mechanics , database , quantum mechanics , psychotherapist , programming language
In systems of vibration control, monitoring, diagnostics, active vibration protection, measurements and control of vibration parameters are necessary. For this, piezoelectric sensors are widely used in them as primary transducers. These sensors, due to their high metrological characteristics, such as accuracy, speed, a wide band of operating frequencies and temperatures, are traditionally used to measure vibration displacement, vibration velocity and vibration acceleration. The use of these types of sensors is necessary due to the need to measure and control vibration at objects with different frequency characteristics. The article considers possible distortions of the measured signal at the output of the sensors due to phase shifts. These phase shifts must be taken into account when developing and constructing measurement and processing schemes of the vibration signal. This is especially true when measuring and recording a rapid vibration processes, such as mechanical shock.