
Proceedings Paper
The non-contact precision measurement and noise reduction method for liquid volume metrologyFormat | Member Price | Non-Member Price |
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Paper Abstract
Liquid volume is one important metrology method for commercial transaction in international trade, and vertical tank is
used as main metrology tool. One non-contact optical measurement system was raised by using laser scanning method.
The coordinates of vertical tank shell were acquired by phase-shift ranging method and angular measurement, and the set
of coordinates is named as data cloud. The measurement errors of distance and angle are 2mm and 2" respectively.
Wavelet was applied to noise reduction and curve feature extraction for data cloud. Iterative method was used to deduce
the radius at each course height. One 1000m3 vertical tank used as test object, comparison experiment was carried out
with strap method (international arbitral standard). The experimental results show that the noise due to tank shell surface
characteristics and laser scanning devices could be filtered satisfactorily, and the local curve features of tank shell were
described correctly.
Paper Details
Date Published: 15 November 2011
PDF: 7 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 832133 (15 November 2011); doi: 10.1117/12.905216
Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)
PDF: 7 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 832133 (15 November 2011); doi: 10.1117/12.905216
Show Author Affiliations
Jintao Wang, National Institute of Metrology (China)
Ziyong Liu, National Institute of Metrology (China)
Lin Tong, National Institute of Metrology (China)
Ziyong Liu, National Institute of Metrology (China)
Lin Tong, National Institute of Metrology (China)
Long Zhang, National Institute of Metrology (China)
Ligong Guo, National Institute of Metrology (China)
Xuesong Bao, National Institute of Metrology (China)
Ligong Guo, National Institute of Metrology (China)
Xuesong Bao, National Institute of Metrology (China)
Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)
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