Title :
On-line surveillance of lubricants in bearings by means of surface acoustic waves
Author :
Lindner, Gerhard ; Schmitt, Martin ; Schubert, Josephine ; Krempel, Sandro ; Faustmann, Hendrik
Author_Institution :
Inst. of Sensor & Actuator Technol., Coburg Univ. of Appl. Sci., Coburg, Germany
Abstract :
The acoustic wave propagation in bearings filled with lubricants and driven by pulsed excitation of surface acoustic waves has been investigated with respect to the presence and the distribution of different lubricants. Experimental setups, which are based on the mode conversion between surface acoustic waves and compression waves at the interface between a solid substrate of the bearing and a lubricant are described. The results of preliminary measurements at linear friction bearings, rotation ball bearings and axial cylinder roller bearings are presented.
Keywords :
acoustic wave propagation; lubricants; machine bearings; surface acoustic waves; axial cylinder roller bearing; compression waves; linear friction bearing; lubricant; pulsed excitation; rotation ball bearing; surface acoustic wave propagation; Acoustic measurements; Acoustic propagation; Acoustic pulses; Acoustic waves; Friction; Lubricants; Rotation measurement; Solids; Surface acoustic waves; Surveillance; Acoustics; Lubricants; Materials Testing; Scattering, Radiation; Ultrasonography;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2010.1388
