APPARATUS FOR STUDYING THE ELECTRONIC-MICROSCOPIC IMAGES

摘要

the invention relates to a device for microscopiei electronic transmission, allowing a direct measurement of image evidence, fluorescent screen (14) of the chamber (1) examination - shooting of an electron microscope.the apparatus is composed of a mechanical assembly (b), fixed by a piece (2) on the wall (3) of examination room shooting (1) of a microscope coupled with a micrometer, and (c) ensuring the movement, inside the room (1), a metallic marker (9 capu0103tu) set at a rods (7) parallel to a fluorescent screen (14).a montage of polarization protection (d) creates a potential difference between the fluorescent screen (14) and the mark (9), such that the metallic electronic image, of the latter, appear on the screen fluorescent (14) in the form of a bright line (24).acting on micrometrului (c), the bright line (24) can be displaced, successively in two points (b and c), diametrically opposed, u00eencadru00e2nd an image (25), whose diameter (phi) is measured with a micro caliper (c) and, knowing the magnification of electronic microscope, it can be deter mina by calculation the actual size of particles visualized. u0155