An Optical Comparator for Evaluation of Fine Sieves

Autor:	RT Horstman, FP Mancini, RL Meltzer, EW Poluianov, B Power, MB Vieth, KC Lieb, N Bareket
Rok vydání:	1979
Předmět:	Optical comparator Engineering Mechanics of Materials business.industry Mechanical Engineering Measuring instrument Electronic engineering Sieve analysis Design elements and principles Magnification General Materials Science business
Zdroj:	Journal of Testing and Evaluation. 7:344
ISSN:	0090-3973
DOI:	10.1520/jte11512j
Popis:	An optical comparator for testing the compliance of fine sieves with existing standards was designed and built. It is a portable, low-cost instrument, featuring a range of magnification from ×8 to ×270 and scanning capabilities over a 30-cm-diameter surface. The design principles are discussed and test results regarding the accuracy and speed of operation are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6b69e05b2ad4ec554cf8e134c081c2ed https://doi.org/10.1520/jte11512j Zobrazit plný text záznamu