Estimating wood moisture by near infrared spectroscopy: Testing acquisition methods and wood surfaces qualities

Santos, Luana Maria dos; Amaral, Evelize Aparecida; Nieri, Érick Martins; Costa, Emylle Veloso Santos; Trugilho, Paulo Fernando; Calegário, Natalino; Hein, Paulo Ricardo Gherardi

doi:10.1080/17480272.2020.1768143

Cited by 25 publications

(9 citation statements)

References 20 publications

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“…Several contradictory results have been found in the literature. For instance, some authors reported that samples with greater roughness captures more information about the material compared to smooth surfaced specimens that has weak diffuse reflection with less information (Costa et al 2018; dos Santos et al 2020). Others have found the NIR predictive models based on the smooth surface to be superior compared to their counterparts (Schimleck et al 2005a; Liu et al 2006).…”

Section: Resultsmentioning

confidence: 99%

Predictive capacity of some wood properties by near-infrared spectroscopy

Ayanleye

Avramidis

2020

International Wood Products Journal

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Near-infrared spectroscopy (NIRS) is a non-destructive method that has been used in wood property assessment. Preliminary studies have revealed its ability to predict wood density and mechanical properties, but with little attention given to the effect of surface quality and wood anisotropy. This study simulates sawmill conditions variable timber surface quality and cross-sectional annual ring orientation where NIR spectra were taken on rough and smooth surfaces of quarter-sawn and flat-sawn specimens. Two models were developed based on a mixed set which included both cross-sections, and another that was based on wood from these two cross-sections, separately. Promising predictive models were obtained for density (R 2 p = 0.66), stiffness (R 2 p = 0.78) and strength (R 2 p = 0.82). Rough surface and quarter-sawn specimens were mostly better than their counterparts. In general, density, stiffness, and strength of wood could swiftly and with relative accuracy be assessed using NIRS, especially with rough-surfaced timber.

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Section: Resultsmentioning

confidence: 99%

Predictive capacity of some wood properties by near-infrared spectroscopy

Ayanleye

Avramidis

2020

International Wood Products Journal

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“…The Near-infrared radiation (NIR) method permeates deeper into the specimen than Mid-IR. Santos et al (2020) has investigated the influence of integrating sphere or fiber optic probe and the exterior specimen condition on the NIR spectra for moisture assessment in timber. Tsuchikawa et al (2017) examined online NIR spectroscopic system for speedy moisture evaluation of veneer at 120 m/min and sufficient prediction accuracy.…”

Section: Ir Optical Methodsmentioning

confidence: 99%

Techniques to Measure Moisture Content in Timber: A Review and Proposal for Inter-digital Sensing

Oommen¹,

Philip²

2022

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Timber is a commonly used building material which is porous in nature, continuously maintaining equality with relative humidity (RH) and temperature of the atmosphere in the immediate vicinity. Moisture content influences several performance parameters like timber durability, immunity to deterioration etc. Several procedures have been attempted which enables to measure the moisture contents in timber consistently and rather accurately. This review provides the technical details of the methodologies attempted so far to estimate moisture contents in timber specimens. The proposed inter-digital sensing was carried out at Department of Instrumentation, CUSAT during 2019-2020. Implementation of a method employing a spiral inter-digital capacitive sensor, which is low in cost and non-invasive in nature, is presented and discussed.

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“…For example, IR spectroscopy is used to evaluate the content of lignine and phenolic compounds in the wood [ 105 , 106 ]. Today, NIR spectroscopy is also used for the evaluation of a sample’s humidity [ 107 ]. Using IR spectroscopy and the corresponding mathematical simulators, it is possible to evaluate the wood density based on the ratio between cellulose, lignine, and other wood components [ 108 ].…”

Section: Practical Application Of Various Types Of Ir and Raman Spect...mentioning

confidence: 99%

Vibrational Spectroscopy as a Tool for Bioanalytical and Biomonitoring Studies

Pirutin

Jia²,

Yusipovich

et al. 2023

IJMS

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The review briefly describes various types of infrared (IR) and Raman spectroscopy methods. At the beginning of the review, the basic concepts of biological methods of environmental monitoring, namely bioanalytical and biomonitoring methods, are briefly considered. The main part of the review describes the basic principles and concepts of vibration spectroscopy and microspectrophotometry, in particular IR spectroscopy, mid- and near-IR spectroscopy, IR microspectroscopy, Raman spectroscopy, resonance Raman spectroscopy, Surface-enhanced Raman spectroscopy, and Raman microscopy. Examples of the use of various methods of vibration spectroscopy for the study of biological samples, especially in the context of environmental monitoring, are given. Based on the described results, the authors conclude that the near-IR spectroscopy-based methods are the most convenient for environmental studies, and the relevance of the use of IR and Raman spectroscopy in environmental monitoring will increase with time.

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Estimating wood moisture by near infrared spectroscopy: Testing acquisition methods and wood surfaces qualities

Cited by 25 publications

References 20 publications

Predictive capacity of some wood properties by near-infrared spectroscopy

Predictive capacity of some wood properties by near-infrared spectroscopy

Techniques to Measure Moisture Content in Timber: A Review and Proposal for Inter-digital Sensing

Vibrational Spectroscopy as a Tool for Bioanalytical and Biomonitoring Studies

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