Cov kua dej ua kua viscosity kuj tsis tshua zoo, kev ua kom yooj yim kuj yog qhov zoo, kev pom tau viscosity kuj yooj yim heev, tsuas yog lub khob viscosity thiab lub tsom iav tuaj yeem ua tiav qhov kev kuaj pom ntawm number case viscosity.
Cov txheej txheem kev ua haujlwm ntxaws yog: ua ntej muab cov kua dej ib qho sib tov, tom qab ntawd muab lub khob ntim viscosity rau hauv tus number case, thiab tom qab ntawd muab tso tawm lub khob viscosity ntawm qhov tsis sib thooj. Thaum lub khob viscosity tsuas yog rub tawm ntawm tus number case saum npoo, nias lub stopwatch saib lub sijhawm thiab txaus siab rau qhov txau ntawm tus number case; Nias lub tsheb saib thaum tus number case cia li nres. Lub sijhawm no, lub sijhawm nqi ntawm lub ntsuas phoo sawv cev rau lub viscosity ntawm tus number case, siab viscosity, ntau ntau ntawm vib nas this; Tsawg viscosity thiab ob peb feeb. Vim tias qhov ntsuas kub nws txawv, lub viscosity ntawm tus number case yuav hloov, yog li qhov ntsuas kub nrhiav kom paub yog tsau ntawm 25 ℃.
Nws tsim nyog teev tias tsis muaj qhov sib cuam tshuam ntawm qhov sib xyaw nrog cov convex kub thiab xim ntawm tus number case, tab sis nws yuav muaj qee yam kev cuam tshuam rau kev ua haujlwm ntawm tus number case thaum nws siv nyob rau hauv tshuab tshuaj ntsuam luam ntawv.
