Specular and Diffuse Reflectance Measurements of Aluminum Surfaces PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Specular and Diffuse Reflectance Measurements of Aluminum Surfaces PDF full book. Access full book title Specular and Diffuse Reflectance Measurements of Aluminum Surfaces by E. F. Barkman. Download full books in PDF and EPUB format.
Author: E. F. Barkman
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 13
Get Book Here
Book Description
The appearance attributes of aluminum surfaces are measured using integrating sphere instruments commercially available. Total (TR) and diffuse reflectance (DR) values are obtained on the instrument. The specular reflectance (SR) is the difference: SR=TR-DR The term, "specularity" or "specular reflectance factor" (SRF), is calculated: SRF=100[SRTR] and is a numerical value of the visual "brightness" or mirror qualities of the surface. Examples of various appearance properties are given to illustrate the practical application of the method.
Author: E. F. Barkman
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 13
Get Book Here
Book Description
The appearance attributes of aluminum surfaces are measured using integrating sphere instruments commercially available. Total (TR) and diffuse reflectance (DR) values are obtained on the instrument. The specular reflectance (SR) is the difference: SR=TR-DR The term, "specularity" or "specular reflectance factor" (SRF), is calculated: SRF=100[SRTR] and is a numerical value of the visual "brightness" or mirror qualities of the surface. Examples of various appearance properties are given to illustrate the practical application of the method.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
An integrating sphere technique was used for the measurement of the total and specular reflectance of vacuum-evaporated aluminum films. The appearance of the surface to the naked eye was relatively insensitive to the total reflectance, but was very closely related to the fraction of reflected light that was specularly reflected. Milky or cloudy-appearing aluminum films had a low specular reflectance while mirror-like films had a high specular reflectance. Surface specular reflectance was in turn closely related to film microtopography; roughening features such as hillocks substantially reduced film shininess and hence specular reflectance. Although no extensive study to relate reflectance to deposition parameters was undertaken, specular reflectance was found to be very sensitive to chamber pressure during evaporation. Two alternate techniques for surface appearance measurements were evaluated and correlated with the integrating sphere method; these techniques yielded relative assessments of film shininess that corresponded well with visual appearance and integrating sphere results.
Author: Richard S. Hunter
Publisher: John Wiley & Sons
ISBN: 9780471830061
Category : Science
Languages : en
Pages : 436
Get Book Here
Book Description
This second edition of a unique text/reference identifies the appearance attributes of objects and the methods available for measuring them, bringing together much material not previously organized for ready reference. The primary premise here is that ``object appearance'' involves not only color, but such attributes as gloss, luster, and translucency. The first part of the book, concerned with nature of appearance, draws from the fields of physiology and psychology and considers the eye-brain combination and the way it receives and interprets light signals. This is followed by a consideration of the optical properties of objects from the physical standpoint. The second part of the book deals with the numerical scales used to measure object appearance. The discussion here draws on psychophysics in describing the uses of physical techniques to give numbers having psychological significance. The third part of the book covers instruments for the measurement of the attributes of object appearance, their principles of design, and a survey of the major ones in use. The final chapter discusses specific applications of appearance measurement. Includes appendixes and a glossary.
Author:
Publisher: ASTM International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 104
Get Book Here
Book Description
Author: B. W. Robinson
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 7
Get Book Here
Book Description
1.1 This method provides values for four independently variable surface characteristics that can be used to describe precisely the appearance of rolled aluminum surfaces. This method is applicable to finishes ranging from mill sheet to luster sheet, from utility foil to decorative foil, as well as bright anodized surfaces. 1.2 Color is not included as an appearance characteristic, nor are random surface defects identified using this method.
Author: Gerald M. Keating
Publisher:
ISBN:
Category : Aluminum
Languages : en
Pages : 56
Get Book Here
Book Description
Reflectance measurements were made at different azimuth and colatitude angles relative to flat samples of the aluminum and white epoxy paint surfaces used on the Explorer Ix satellite by means of an adapted monoplanar goniophotometer. Contour charts of the reflectance from these samples were obtained from the results of these measurements. Reflectance relative to mutually perpendicular axes was obtained by graphical integration of the contour charts. The vectorial summation of the reflectance was thus obtained. The aluminum sample was found to be essentially a specular reflector and the white epoxy paint sample was found to be essentially a diffuse reflector.
Author: Lawrence B. Wolff
Publisher: CRC Press
ISBN: 143986585X
Category : Computers
Languages : en
Pages : 424
Get Book Here
Book Description
Commentaries by the editors to this comprehensive anthology in the area of physics-based vision put the papers in perspective and guide the reader to a thorough understanding of the basics of the field. Paper Topics Include: - Intensity Reflection Models - Polarization and Refraction - Camera Calibration - Quantization and Sampling - Depth from Opt
Author: Ernst R. G. Eckert
Publisher: Taylor & Francis
ISBN: 9780891166528
Category : Science
Languages : en
Pages : 388
Get Book Here
Book Description
Author: John E. Hatch
Publisher: ASM International
ISBN: 9780871701763
Category : Technology & Engineering
Languages : en
Pages : 452
Get Book Here
Book Description
Comprehensive information for the American aluminium industry Collective effort of 53 recognized experts on aluminium and aluminium alloys Joint venture by world renowned authorities-the Aluminium Association Inc. and American Society for Metals. The completely updated source of information on aluminium industry as a whole rather than its individual contributors. this book is an opportunity to gain from The knowledge of the experts working for prestigious companies such as Alcoa, Reynolds Metals Co., Alcan International Ltd., Kaiser Aluminium & Chemical Corp., Martin Marietta Laboratories and Anaconda Aluminium Co. It took four years of diligent work to complete this comprehensive successor to the classic volume, Aluminium, published by ASM in 1967. Contents: Properties of Pure Aluminum Constitution of Alloys Microstructure of Alloys Work Hardening Recovery, Recrystalization and Growth Metallurgy of Heat Treatment and General Principles of Precipitation Hardening Effects of Alloying Elements and Impurities on Properties Corrosion Behaviour Properties of Commercial Casting Alloys Properties of Commercial Wrought Alloys Aluminum Powder and Powder Metallurgy Products.
Author: Joseph C. Richmond
Publisher:
ISBN:
Category : Aluminum coatings
Languages : en
Pages : 60
Get Book Here
Book Description
