Nondestructive determination of the modulus of elasticity of Fraxinus mandschurica using near-infrared spectroscopy

Huiling Yu; Hao Liang; Xue Lin; Yizhuo Zhang

doi:10.1117/1.OE.57.4.046103

9 April 2018 Nondestructive determination of the modulus of elasticity of Fraxinus mandschurica using near-infrared spectroscopy

Huiling Yu, Hao Liang, Xue Lin, Yizhuo Zhang

Author Affiliations +

Optical Engineering, Vol. 57, Issue 4, 046103 (April 2018). https://doi.org/10.1117/1.OE.57.4.046103

Abstract

A nondestructive methodology is proposed to determine the modulus of elasticity (MOE) of Fraxinus mandschurica samples by using near-infrared (NIR) spectroscopy. The test data consisted of 150 NIR absorption spectra of the wood samples obtained using an NIR spectrometer, with the wavelength range of 900 to 1900 nm. To eliminate the high-frequency noise and the systematic variations on the baseline, Savitzky–Golay convolution combined with standard normal variate and detrending transformation was applied as data pretreated methods. The uninformative variable elimination (UVE), improved by the evolutionary Monte Carlo (EMC) algorithm and successive projections algorithm (SPA) selected three characteristic variables from full 117 variables. The predictive ability of the models was evaluated concerning the root-mean-square error of prediction (RMSEP) and coefficient of determination ( Rp2) in the prediction set. In comparison with the predicted results of all the models established in the experiments, UVE-EMC-SPA-LS-SVM presented the best results with the smallest RMSEP of 0.652 and the highest Rp2 of 0.887. Thus, it is feasible to determine the MOE of F. mandschurica using NIR spectroscopy accurately.

Citation Download Citation

Huiling Yu, Hao Liang, Xue Lin, and Yizhuo Zhang "Nondestructive determination of the modulus of elasticity of Fraxinus mandschurica using near-infrared spectroscopy," Optical Engineering 57(4), 046103 (9 April 2018). https://doi.org/10.1117/1.OE.57.4.046103

Received: 30 December 2017; Accepted: 14 March 2018; Published: 9 April 2018

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available