In this paper, a non-invasive method of early fault diagnostics of electric motors was
proposed. This method uses acoustic signals generated by electric motors. Essential …

Recognition of states of electrical systems is very important in industrial plants. Article
describes a recognition method of early fault detection of DC generator. The proposed …

For decades, modal analysis has been a tool to gain insights in the vibrational and
acoustical behavior of music instruments. This study provides a critical comparison of …

Results of experimental modal analysis of a resonance and non-resonance spruce wood
(Picea abies L.) are presented. The resonance wood came from a tree from Poland and …

One of the main objectives of violin acoustics is a detailed analysis of the vibration state of
the instrument, the source of its sound. The goal of this work was to extend a straightforward …

In this study, the sounds of violins, performed by a violinist, were recorded and the
distribution of peak frequencies of the spectral envelope of the recorded sound data was …

Thermography is a technology that enables recognition of objects in the specific area. The
goal of using thermographic techniques for ironworks is to diagnose electrical equipment …

The paper summarizes the main aspects of an experimental vibro-acoustic investigation
developed by the authors on two violas da gamba (named in the following as viols). The …

One-dimensional experimental modal analysis of an unvarnished trapezoidal violin built
after the description of F. Savart and an anonymous trapezoidal violin on display in the …

The different mechanical properties of the materials from which the tailpieces are made have
a noticeable effect on the acoustic performance of the violin. These elements are made …