Thermal Stress Monitoring on Piston Rings by Real Time Holographic Interferometry

Stephen N. Maina, Geoffrey K. Rurimo, Patrick M. Karimi, Dickson M. Kinyua, Calvin F. Ominde

Department of Physics, Jomo Kenyatta University of Agriculture & Technology, Nairobi, Kenya.
Department of Physics, Kenyatta University, Nairobi, Kenya.

DOI: 10.4236/opj.2013.38059                

Abstract

In this paper, real time holographic Interferometry (RTHI) technique was used to monitor the thermal stress on the piston rings. The piston rings holograms were recorded and the holographic plate replaced on the holder after development. The piston ring was subjected to thermal stress as it was illuminated by Laser beam acting as the object beam. This process led to generation of interferograms which were captured by a CCD camera at different temperatures. The captured interferograms were analyzed using atmosfringe version 3.3 software. From the analysis, the peak to valley (P-V) aberrations measured for each of the piston ring varied for the same temperature value. The P-V aberrations ranging from 0.0128λ to 1.2989λ were obtained. From this result, it was evident that the three rings on the piston had different unique structural characteristics due to their function.

Keywords

Interferogram; Hologram; Aberration; Piston Ring; Laser Beam

Conflicts of Interest

The authors declare no conflicts of interest.

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