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A PROJECTOR FOR THE MEASUREMENT OF FISH‐SCALES
Author(s) -
Hartley W. G.
Publication year - 1956
Publication title -
journal of the royal microscopical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0368-3974
DOI - 10.1111/j.1365-2818.1956.tb00456.x
Subject(s) - projector , potentiometer , magnification , fish <actinopterygii> , computer science , simple (philosophy) , feature (linguistics) , power (physics) , artificial intelligence , computer vision , computer graphics (images) , electrical engineering , engineering , physics , fishery , biology , philosophy , linguistics , epistemology , voltage , quantum mechanics
SYNOPSIS This paper describes a low‐power micro‐projector especially designed for routine examination of fish‐scales. A particular feature of this apparatus is the use for proportional measurement of a simple electrical potentiometer system which can be readily applied in similar circumstances irrespective of magnification.