Qhov chaw sov tsim Ubbelohde yog qhov tseem ceeb rau ntau chaw tsim kho. Nws pab cov neeg kho kho thiab cov kws tshaj lij kom pom tias ib qhov dej muaj qhov loj lossis qhov me. Qhov no hu ua viscosity. Viscosity muaj txuj ci rau ntau qhov chaw tsim kho—siv khob, siv rooj sib neeg, thiab neeg, txaus li peb qhov xwb. Ib qhov dej uas muaj qhov viscosity siab, xws li ntsub, yuav tso tawm yam ntxoov ntxoo; dej uas tsis muaj qhov viscosity siab yuav tso tawm nrog qhov yooj yim dua. Nrog qhov chaw sov tsim Ubbelohde koj tuaj yeem nrhiav tau cov ntsiab lus tseeb txog cov yam ntxwv no, uas pab tau rau kev tsim kho zoo dua. (Cov chaw tsim kho xws li ZONWON tsim automatic viscometer kom paub tias koj tau txais cov ntsiab lus tseeb rau koj cov kev sim.