title: Удосконалення пристрою для визначення товщини змащувальних плівок при випробуваннях матеріалів зубчастих передач
abstract: The article discusses the improvement of the device, which contains serially connected with the roller samples ammeter, rheostat, battery and switch, as well as the hard conductive plate and connected in parallel with the voltmeter samples. The essence of the improvement is solved using the three-position switch connected to center terminal of the movable jumper with a rigid conductive plate, and the extreme terminals on both sides of the middle neutral terminal with separate samples. This simpl
journal: Технологія і техніка друкарства