Proposed Method of Measurement for Appearance of Rolled Aluminum Surfaces Using Distinctness of Image and Diffuse Reflectance Measuring Instruments

2009 ◽  
pp. 79-79-7
Author(s):  
B. W. Robinson
Keyword(s):  
Diffuse Reflectance ◽  
Measuring Instruments ◽  
Rolled Aluminum ◽  
Distinctness Of Image ◽  
Method Of Measurement ◽  
Aluminum Surfaces

DIFFUSE REFLECTANCE SPECTROSCOPY: APPLICATIONS IN MEASURING MITE-FEEDING INJURY TO ORCHARD LEAVES

1974 ◽  
Vol 54 (3) ◽  
pp. 505-509 ◽  
Author(s):  
J. D. MACNEIL ◽  
R. S. DOWNING ◽  
M. HIKICHI
Keyword(s):  
Diffuse Reflectance ◽  
Burn Injury ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Yellow Pigment ◽  
Panonychus Ulmi ◽  
Green Pigment ◽  
Pyrus Communis L ◽  
Mite Feeding ◽  
Method Of Measurement

Diffuse reflectance spectroscopy measured damage to leaves of McIntosh, Red Delicious and Golden Delicious apple (Malus sylvestrus Mill.) trees caused by varying population levels of the European red mite, Panonychus ulmi (Koch). The ratio of yellow pigment to green pigment in the leaves increased with increasing mite populations. Results were compared with those obtained by chlorophyll analyses. Transpiration burn injury was found to obscure such relationships, if they exist, on Bartlett pear (Pyrus communis L.) leaves on which mites had been feeding. The results indicate that reflectance spectroscopy will measure damage caused by leaf-feeding mites and is a more rapid and sensitive method of measurement than the analysis of chlorophyll in solution.

Optical scattering from rough-rolled aluminum surfaces

2001 ◽  
Vol 40 (13) ◽  
pp. 2148 ◽  
Author(s):  
Mats Rönnelid ◽  
Monika Adsten ◽  
Tomas Lindström ◽  
Per Nostell ◽  
Ewa Wäckelgård
Keyword(s):  
Optical Scattering ◽  
Rolled Aluminum ◽  
Aluminum Surfaces

Specular reflectance of cold-rolled aluminum surfaces

1992 ◽  
Vol 17 (2) ◽  
pp. 103-109 ◽  
Author(s):  
R. Silvennoinen ◽  
K.-E. Peiponen ◽  
T. Asakura ◽  
Yan-Fang Zhang ◽  
Cong Gu ◽  
...  
Keyword(s):  
Specular Reflectance ◽  
Rolled Aluminum ◽  
Cold Rolled ◽  
Aluminum Surfaces

scholarly journals Light scattering from cold rolled aluminum surfaces

2001 ◽  
Vol 187 (4-6) ◽  
pp. 289-294 ◽  
Author(s):  
Damien Vandembroucq ◽  
Annie Tarrats ◽  
Jean-Jacques Greffet ◽  
Stéphane Roux ◽  
Franck Plouraboué
Keyword(s):  
Light Scattering ◽  
Rolled Aluminum ◽  
Cold Rolled ◽  
Aluminum Surfaces

Exploratory investigation of color changes in paints induced by broadband synchrotron radiation

1996 ◽  
Vol 74 (5-6) ◽  
pp. 244-250 ◽  
Author(s):  
A. D. O. Bawagan ◽  
M. Sabaye-Moghaddam ◽  
K. H. Tan ◽  
B. W. Yates
Keyword(s):  
Synchrotron Radiation ◽  
Diffuse Reflectance ◽  
Broad Band ◽  
Color Changes ◽  
Exploratory Investigation ◽  
Color Differences ◽  
Before And After ◽  
Coated Surfaces ◽  
Aluminum Surfaces ◽  
Reflectance Measurements

Changes in color of coated (painted) aluminum surfaces exposed to broad-band synchrotron radiation (10–2000 eV) are investigated as a function of radiation dose (N). Quantitative color differences [Formula: see text] before and after exposure are obtained from spectral diffuse reflectance measurements using the standard CIELAB formula. The results indicate that the dose–response curve of the color-coated surfaces at large photon doses can be described as [Formula: see text] where d is a material-dependent constant.

Concept of a new PZT

1978 ◽  
Vol 48 ◽  
pp. 271-278
Author(s):  
Chr. Kühne
Keyword(s):  
Mirror System ◽  
Measuring Instruments

The PZT according to MARKOWITZ, undoubtedly one of the most accurate measuring instruments, has become an integral part of astronomy in the last years. Yet there are two reasons why I still tried to improve the MARKOWITZ basic idea.For the MARKOWITZ process the use of a lens objective is imperative. Because of the diameter limitations of the lens objectives the magnitude is reduced. Although a 65 cm PZT has been put into operation in Washington recently, the thermal difficulties encountered made it necessary to control the temperature actively. In addition, the 65 cm diameter of a lens equipped with 4 elements can be considered as the very limit, but not for a mirror system.In addition there are still more disadvantages using lens objectives. The useable field is restricted by astigmatism, reducing the range of declination. The transmission, especially in the blue wavelengths, decreases very rapidly with the thickness of lenses. For large multilens objectives the transmission is less than for a mirror system.

Mathematical simulation of error functions of decision-making at tolerance control of measuring techniques availability

Metrologiya ◽  
2020 ◽  
pp. 3-15
Author(s):  
Rustam Z. Khayrullin ◽  
Alexey S. Kornev ◽  
Andrew A. Kostoglotov ◽  
Sergey V. Lazarenko
Keyword(s):  
Measurement Error ◽  
Geometric Interpretation ◽  
Measuring Instruments ◽  
Measured Quantity ◽  
Metrological Examination ◽  
Technical Documentation ◽  
Error Functions ◽  
Measuring Techniques ◽  
Tolerance Control ◽  
Laws Of Distribution

Analytical and computer models of false failure and undetected failure (error functions) were developed with tolerance control of the parameters of the components of the measuring technique. A geometric interpretation of the error functions as two-dimensional surfaces is given, which depend on the tolerance on the controlled parameter and the measurement error. The developed models are applicable both to theoretical laws of distribution, and to arbitrary laws of distribution of the measured quantity and measurement error. The results can be used in the development of metrological support of measuring equipment, the verification of measuring instruments, the metrological examination of technical documentation and the certification of measurement methods.

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