2 August 2004 Precision measurement on comprehensive topography of the deep hole surface
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Based on the computer aided test technique, a precision method for measuring the comprehensive topography of the deep hole surface is developed. The measuring principle and data processing method are described in detail. A new built-up function has good linearity and good continuity, therefore it is easy to be subdivided by computer and the error can be corrected conveniently. In order to get a high quality fringe signal, we apply a new correction technique which based on the least square method to correct the A/D values in real-time. Some new methods are firstly employed to predict measuring errors and find the best measuring plan. A serial of experiments are made to verify the method’s availability and reliability by using some especial devices and software. Based on the laser holographic diffraction grating, a new experimental instrument is developed to measure the needle valve seat’s cone of a diesel engine.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhongyu Wang, Ming Fang, "Precision measurement on comprehensive topography of the deep hole surface", Proc. SPIE 5532, Interferometry XII: Applications, (2 August 2004); doi: 10.1117/12.561415; https://doi.org/10.1117/12.561415

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