2 August 2004 Precision measurement on comprehensive topography of the deep hole surface
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Proceedings Volume 5532, Interferometry XII: Applications; (2004); doi: 10.1117/12.561415
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States
Abstract
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.
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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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KEYWORDS
Sensors

Surface roughness

Error analysis

Precision measurement

Diffraction gratings

Digital filtering

Metrology

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