Implementation of an on-line near infrared/visible (NIR/VIS) spectrometer for rapid quality assessment of grapes upon receival at wineries

2015 ◽  
Vol 21 (1) ◽  
pp. 69-79 ◽  
Author(s):  
J.U. Porep ◽  
A. Mattes ◽  
M.S. Pour Nikfardjam ◽  
D.R. Kammerer ◽  
R. Carle
Keyword(s):  
Quality Assessment ◽  
Near Infrared ◽  
On Line

scholarly journals Near-infrared spectroscopic sensing system for on-line milk quality assessment in a milking robot

2008 ◽  
Vol 63 (1) ◽  
pp. 22-27 ◽  
Author(s):  
Masataka Kawasaki ◽  
Shuso Kawamura ◽  
Maki Tsukahara ◽  
Shigeru Morita ◽  
Michio Komiya ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Near Infrared ◽  
Milk Quality ◽  
Sensing System ◽  
Infrared Spectroscopic ◽  
On Line

Modelling near-infrared signals for on-line monitoring in cheese manufacture

2002 ◽  
Vol 16 (2) ◽  
pp. 89-98 ◽  
Author(s):  
B. J. A. Mertens ◽  
C. P. O'Donnell ◽  
D. J. O'Callaghan
Keyword(s):  
Near Infrared ◽  
On Line

Water absorption thermodynamics in single wood pellets modelled by multivariate near-infrared spectroscopy

Holzforschung ◽  
2008 ◽  
Vol 62 (4) ◽  
Author(s):  
Torbjörn A. Lestander
Keyword(s):  
Water Content ◽  
Near Infrared ◽  
Calorific Value ◽  
Least Squares Regression ◽  
Wood Pellets ◽  
Differential Heat ◽  
On Line ◽  
Explained Variation ◽  
Test Sets ◽  
Content Range

Abstract Samples of wood pellets were adjusted into six water content classes from 0% to 12%. The water content in single pellets varied between 0.1% and 14.2%. Three equations were constructed to estimate the differential heat of sorption (-ΔH) values from (1) fractal-geometry, (2) isosteric, and (3) calorimetric data. The ranges in calculated -ΔH of single pellets were (1) 133–1475, (2) 315–881, and (3) 195–1188 J g-1 water, respectively, across the studied moisture content range. Partial least squares regression was used to model near-infrared (NIR) spectra from single pellets and to predict -ΔH values and water content. The explained variation in test sets for the different models ranged from 97.1% to 99.9%. The shifts in peak absorbance for two water bands indicated that frequency in overtone vibration of O-H stretching and bending decreased, when water content was raised. Simulations of mixes between pellets of differential heat values showed that released heat was up to 0.03% of the gross calorific value of wood pellets. This heat may be a major contributor to initial temperature increases in pellet stacks during storage. The results indicate that on-line NIR based predictions of differential heat in wood pellets is possible to apply in the pellet industry.

scholarly journals Optimum three-point linkage set up for improving the quality of soil spectra and the accuracy of soil phosphorus measured using an on-line visible and near infrared sensor

2009 ◽  
Vol 103 (1) ◽  
pp. 144-152 ◽  
Author(s):  
A.M. Mouazen ◽  
M.R. Maleki ◽  
L. Cockx ◽  
M. Van Meirvenne ◽  
L.H.J. Van Holm ◽  
...  
Keyword(s):  
Near Infrared ◽  
Soil Phosphorus ◽  
Infrared Sensor ◽  
On Line ◽  
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