Kev hloov pauv ntawm Leeb thiab Brinell hardness testers yog raws li kev sau ntawv ntawm cov nqi hardness. Leeb hardness tus nqi (HL) tuaj yeem hloov mus rau lwm qhov hardness qhov tseem ceeb (xws li HRC, HRB, HB, HV, HSD), thiab qhov kev hloov pauv no feem ntau ua tiav los ntawm microcomputer hauv Leeb hardness tester. cov
Brinell hardness tus nqi (HB) yog tau los ntawm kev thov ib tug tej yam load P rau ib tug hardened steel pob nrog ib txoj kab uas hla ntawm D thiab nias nws mus rau saum npoo ntawm cov khoom hlau yuav tsum tau kuaj, khaws lub load rau ib lub sij hawm ntawm lub sij hawm, ces tshem tawm. lub load, thiab ces ntsuas qhov ratio ntawm load P mus rau indentation deg cheeb tsam F.