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Proceedings Paper

Laser measuring machine for 3D noncontact inspection of geometric parameters of grid spacers for nuclear reactors VVER-1000
Author(s): Oleg I. Bityutsky; I. G. Chapaev; V. M. Chernyshov; Yuri V. Chugui; A. A. Gushchina; Yu. K. Karlov; Konstan I. Kuchinsky; Vladimir I. Ladygin; Yu. V. Pimenov; Sergey V. Plotnikov; V. V. Rozhkov; Victor V. Vertoprakhov; V. P. Yunoshev; M. G. Zarubin
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Paper Abstract

Ensuring a high reliability of fuel assemblies of nuclear reactors makes strict demands on geometric parameters of grid spacers. They determine the preset position of the fuel element beam in the transversal and longitudinal directions of fuel assembly and the required tension in the cell — fuel element junction, which is highly important for excluding of fuel element corrosion and for maintenance of normal thermal regime of this assembly. A laser measuring machine (LMM) using a three-channel measuring head based on multipoint structured illumination and scanning X-Y table, for 1 00% noncontact 3D inspection of grid spacers geometric parameters of Russian nuclear reactor VVER- 1000, has been developed and produced at TDI STE. The LMM structure, operation and software are described and the results of its industrial testing are presented and discussed. LMM makes it possible to measure for half an hour (with errors less than 18 ?m) the following grid spacer geometric parameters: diameters of its cells and of guiding channels, the distances between cells centers and shifts of cell centers relative to design drawing. In addition, LMM also measures grid spacer overall dimensions "for spanner".

Paper Details

Date Published: 29 July 2002
PDF: 11 pages
Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); doi: 10.1117/12.484559
Show Author Affiliations
Oleg I. Bityutsky, Technological Design Institute of Scientific Instrument Engineering (Russia)
I. G. Chapaev, JSC Novosibirsk Chemical Concentrates Plant (Russia)
V. M. Chernyshov, JSC TVEL (Russia)
Yuri V. Chugui, Technological Design Institute of Scientific Instrument Engineering (Russia)
A. A. Gushchina, Technological Design Institute of Scientific Instrument Engineering (United States)
Yu. K. Karlov, JSC Novosibirsk Chemical Concentrate Plant (Russia)
Konstan I. Kuchinsky, Technological Design Institute of Scientific Instrument Engineering (Russia)
Vladimir I. Ladygin, Technological Design Institute of Scientific Instrument Engineering (Russia)
Yu. V. Pimenov, JSC TVEL (Russia)
Sergey V. Plotnikov, Technological Design Institute of Scientific Instrument Engineering (Russia)
V. V. Rozhkov, JSC Novosibirsk Chemical Concentrate Plant (Russia)
Victor V. Vertoprakhov, Technological Design Institute of Scientific Instrument Engineering (Russia)
V. P. Yunoshev, Technological Design Inst. of Scientific Instr. (Russia)
M. G. Zarubin, JSC Novosibirsk Chemical Concentrates Plant (Russia)


Published in SPIE Proceedings Vol. 4900:
Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life

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