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has been cited by the following article:

• TITLE: Thermal Stress Monitoring on Piston Rings by Real Time Holographic Interferometry

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

  KEYWORDS: Interferogram; Hologram; Aberration; Piston Ring; Laser Beam

  JOURNAL NAME: Optics and Photonics Journal, Vol.3 No.8, December 31, 2013

  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.