Lub tswvyim ntawm tachometer
Rotational ceev yog lub cev kom muaj nuj nqis ntawm qhov sib piv ntawm tus naj npawb ntawm cov kiv puag ncig ntawm lub cev tig mus rau lub sijhawm. Hauv engineering, nws feem ntau yog qhia raws li kev sib hloov ceev =ntau zaus ntawm kev sib hloov / sijhawm. Nws yog ib qho tseem ceeb parameter los piav txog kev sib hloov ntawm ib yam khoom. Cov hluav taws xob feem ntau yuav tsum ntsuas qhov ceev ntawm lub cev muaj zog thiab nws cov khoom siv tsav tsheb, thiab siv lub tachometer portable. Lub tachometer yog ib qho cuab yeej siv los ntsuas qhov kev sib hloov ceev thiab kab nrawm ntawm lub cev muaj zog. Muaj ntau ntau hom tachometers, thiab cov portable feem ntau suav nrog cov tshuab centrifugal tachometers thiab digital electronic tachometers.
