Metalurški mikroskop Upotreba malog povećanja
1. Usmjeravanje svjetla metalurškog mikroskopa
Lijevom rukom okrenite vijak za grubo podešavanje kako bi se podigla cijev objektiva ili spustila platforma nosača, a zatim zakrenite pretvarač objektiva kako bi leća s malim povećanjem bila poravnata s platformom nosača kroz rupu za svjetlo (rotacija treba biti pažljiva postavite leću objektiva iznad nedostatka gravure i baze fiksne kopče kopče), otvorite otvor, zakrenite vijak za podizanje kolektorske leće, tako da kolektorsko zrcalo na gornjem kraju ravnine leće bude malo niže od visine ravninu platforme nosača, dva oka u isto vrijeme, dok podešavate smjer reflektora dok vidno polje ne bude ravnomjerno, a svjetlina umjerena.
2. Metalografski mikroskopPostavljanje preparata na stakalcu
Uzmite uzorak stakalca i postavite ga na postolje s pokrovnim stakalcem okrenutim prema gore, pričvrstite ga na potiskivač, a zatim rukom okrenite vijak potiskivača kako biste uzorak koji promatrate poravnali sa središtem otvora.
3. Metalografski mikroskopPodešavanje fokusa
Okrenite vijak za grubo podešavanje rukom, napravite leću s malim povećanjem<6mm from the slide specimen (when adjusting the distance between the objective lens and the slide must be watched from the side, do not turn the coarse adjustment screw at the same time as observing with your eyes on the eyepiece to prevent the lens from colliding with the slide and causing damage), and then open your eyes at the same time, turn the coarse adjustment screw slowly by hand so that the lens rises or make the carrier table fall, when the object image in the field of view is viewed, then adjust the fine adjustment screw until a clear object image appears in the field of view. When the object image appears in the field of view, adjust the fine adjustment screw until a clear object image appears in the field of view. If the object image is not in the centre of the field of view, move the slide specimen up and down, left and right (Note: the direction of movement of the slide is opposite to the direction of movement of the observed object image). If the distance between the lens and the specimen slice has exceeded the working distance when adjusting the focal length and the object image is not seen, then it should be reopened strictly according to the above steps.
