Chromatic Confocal Displacement Measurment Based on Correlation Algorithm
2013 ◽
Vol 446-447
◽
pp. 909-914
Keyword(s):
Chromatic confocal technique application in displacement measurement is studied theoretically and experimentally. a set of refractive lenses are designed and a measurement system is established. Correlation fitting method is proposed to fit spectrum curve and find peak wavelength. Results with use of correlation fitting method are compared with Gaussian and smoothing spline fitting methods. It indicate that correlation fitting method have higher extracting accuracy of peak wavelength and smaller RMSE of linear fitting due to narrower and smoother correlation curve.
Keyword(s):
2017 ◽
Vol 76
(8)
◽
pp. 2242-2253
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Keyword(s):
2010 ◽
Vol 55
(7)
◽
pp. 2498-2504
◽
2014 ◽
Vol 614
◽
pp. 275-278
2009 ◽
Vol 80
(11)
◽
pp. 115109
◽
2013 ◽
Vol 455
◽
pp. 486-490
2013 ◽
Vol 816-817
◽
pp. 140-143