Qeb ntau lawm yog qhov ntsuas tseem ceeb, lub hauv paus rau kev npaj tswj ntawm ib qho kev lag luam. Nws txhais tau hais tias muaj pes tsawg qhov kev tsim tawm (lossis tus naj npawb ntawm kev ua haujlwm) uas yuav tsum tau tsim tawm (lossis ua tiav) ntawm ib lub sijhawm. Kev suav ntawm cov txiaj ntsig kev tsim tawm yog nqa tawm rau ib lossis ib pawg neeg ua haujlwm nrog kev tsim nyog, nrog rau kev pom zoo thiab kev siv cuab yeej zoo tshaj plaws, suav txog qhov kev nce qib ntawm kev ua haujlwm tau siv hauv qhov no.
Cov Lus Qhia
Kauj ruam 1
Rau huab hwm coj thiab ntau qhov ntau lawm, cim tau los ntawm kev suav nrog kev ua haujlwm ntawm cov neeg ua haujlwm tshwj xeeb ua haujlwm hauv kev npaj thiab kev ua haujlwm zaum kawg, tus nqi ntawm lub sijhawm rau kev ua haujlwm ntawm ib pawg ntau lawm yog sib npaug nrog tus nqi ntawm cov sij hawm xam. Rau ib qho, kev ua lag luam thiab kev tsim tawm me me, thaum tib tus neeg ua haujlwm ua txoj haujlwm tseem ceeb, npaj ua tiav thiab ua tiav zaum kawg, cov sijhawm no yuav txawv.
Kauj ruam 2
Thaum xam qhov txiaj ntsig ntawm kev tsim khoom, uas hais txog qhov tsim nyog ntawm kev ua ub no ntawm cov neeg ua haujlwm, cov ntsuas ntuj tau siv: tej daim, metres, kilas. Tus nqi ua haujlwm (Nvyr) yog qhov sib piv ntawm sib faib lub sijhawm ntawm ib qho haujlwm ua haujlwm (Vsm) los ntawm lub sijhawm siv rau kev tsim khoom ntawm cov khoom tsim (Vsht). Rau huab hwm coj ntau lawm, cov khoom lag luam yuav txiav txim siab sib npaug:
Nvyr = Vsm / Vsht.
Kauj ruam 3
Yog hais tias qhov ntau lawm yog batch lossis ib-rau-ib, ces tus nqi Vshtk yog siv los ua qhov sib faib hauv cov mis saum toj no - tus nqi ntawm lub sijhawm txiav txim siab los ntawm cov txheej txheem muab xam thaum xam tus nqi ntawm ib pawg ntawm kev tsim khoom. Hauv qhov no, tus nqi ntau lawm tau suav los ntawm tus qauv:
Nvyr = Vsm / Vshtk.
Kauj ruam 4
Hauv cov kev lag luam uas cov qib npaj ua ntej tau suav thiab cov qauv txheej txheem sib cais rau txhua qhov haujlwm ua haujlwm, tus nqi siab yuav tsum tau siv cov qauv:
Nvyr = (Vsm - Vps) / Tsm, qhov twg Vs yog lub sijhawm siv rau kev npaj thiab ua haujlwm zaum kawg.
Kauj ruam 5
Tus qauv rau xam cov nqi ntau lawm thaum siv cov khoom siv khoos phis tawm thiab khoom siv yuav txawv me ntsis:
Нvyr = Ho * Нвм, qhov twg Ho yog tus nqi tu, Нвм yog tus nqi khoom siv ntau lawm, uas yog sib npaug rau:
Нвм = Нвм theor * Кпв. Ntawm no Нвм theor yog theoretical tus nqi ntawm kev tsim khoom ntawm cov cuab yeej siv, isв yog qhov sib npaug ntawm qhov siv tau lub zog siv sijhawm thaum ua haujlwm.
Kauj Ruam 6
Nyob rau hauv cov ntaub ntawv ntawm kev siv periodic instrumental txheej txheem, tus nqi ntau lawm yog sib npaug rau:
Нvyr = (Vsm - Vob - V ex) * VP * Ho / Vop, qhov twg V rev yog lub sijhawm siv rau kev saib xyuas cov cuab yeej siv, Votl yog lub sijhawm rau tus kheej xav tau ntawm tus neeg ua haujlwm, VP yog cov khoom lag luam tsim nyob rau hauv ib lub sijhawm, Vop yog lub sijhawm ntawm ntu sijhawm no …
Kauj Ruam 7
Tus nqi (P) tuaj yeem raug xam nrog siv cov qauv:
P = C / Nvyr, lossis
P = Vsht * C, qhov twg C yog qhov ntsuas ntawm pawg ua haujlwm no.
