Metalurški mikroskop Uporaba majhne povečave
1. Poravnava svetlobe metalurškega mikroskopa
Z levo roko obrnite vijak za grobo nastavitev, da se ohišje leče dvigne ali nosilna ploščad navzdol, nato pa zavrtite pretvornik objektiva, da bo leča z majhno povečavo poravnana z nosilno ploščadjo skozi luknjo za svetlobo (vrtenje mora biti previdno, naredite lečo objektiva nad pomanjkanjem gravure in osnovo zaponke fiksne zaponke), odprite odprtino, zavrtite vijak za dvig kolektorske leče, tako da je kolektorsko zrcalo na zgornjem koncu ravnine leče nekoliko nižje od višine ravnino nosilne ploščadi, obe očesi hkrati, medtem ko prilagajate smer reflektorja, dokler ni vidno polje svetlobe enakomerno in svetlost zmerna.
2. Metalografski mikroskopNamestitev vzorca na stekelcu
Vzemite preparat stekelca in ga položite na nosilno mizico tako, da je stran pokrovnega stekelca obrnjena navzgor, pritrdite ga na potiskalo, nato pa ročno zavrtite vijak potiskala, da primerek, ki ga želite opazovati, poravnate s središčem odprtine.
3. Metalografski mikroskopPrilagoditev fokusa
Z roko obrnite vijak za grobo nastavitev, naredite lečo z majhno povečavo<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.
