DEVICE FOR DETERMINING THE INCREASE IN electron micrographs Electron-microscopic studies

摘要

FIELD: physics.;SUBSTANCE: apparatus consists of two concentric discs on which there are mm, nm and mcm scales and a magnification factor scale. The scale range of the measuring section in nm varies from 10 to 900 nm, the scale range in mcm varies from 1 to 90 mcm and the scale range of the length of the measuring section, which is measured by a ruler in mm, varies from 1 to 100 mm. The magnification factor scale ranges from 1 to 100 thousand times.;EFFECT: enabling measurement of magnification with easy manufacture and use.;2 ex, 3 dwg