Abstract: Kab lus no yuav tshawb txog cov kev hloov pauv ntawm kev tawm tsam thaum cov hlau tsis kam ua tiav. Los ntawm kev txheeb xyuas qhov kev sib raug zoo ntawm cov hlau tsis kam thiab kev ntsuas hluav taws xob, peb yuav piav qhia seb cov hlau tsis kam, thiab tshawb nws cov ntawv thov hauv cov xwm txheej sib txawv.

Taw qhia:

Hauv peb lub neej txhua hnub, tsis kam yog lub tswvyim lub cev tseem ceeb heev. Txawm li cas los xij, ntau tus neeg tseem muaj qee qhov tsis ntseeg txog cov laj thawj ntawm kev hloov pauv ntawm kev tawm tsam. Ib qho ntawm cov lus nug yog, yuav cov tsis kam nce lossis txo qis thaum cov hlau tsis kam ua nyias ua ke? Kab lus no yuav delve ntxaum rau hauv qhov teeb meem no thiab pab nyeem tsis meej pem qhov kev tsis meej pem.

1. Kev sib raug zoo ntawm cov hlau tsis kam, tam sim no, thiab kev tawm tsam

Firstly, peb yuav tsum nkag siab txog kev sib raug zoo ntawm cov xov hlau tsis kam, tam sim no, thiab kev tawm tsam. Raws li Ohm txoj cai, tam sim no (I) yog sib npaug los tiv thaiv (r) thiab inversely ib feem rau voltage (v). Uas yog, i = v / r. Hauv cov mis no, kev tawm tsam (R) yog qhov tseem ceeb ntawm cov hlau tawm ntawm cov hlau tawm.

2. Thinning ntawm cov hlau tsis kam: ua rau muaj kev nce lossis txo qis?

Tom ntej no, peb yuav tham txog cov kev hloov pauv ntawm kev tsis kam thaum lub xaim hluav taws xob tsis kam ua. Thaum cov hlau tsis kam ua tiav ua nyias, nws qhov chaw hla kev tsawg. Raws li kev sib raug zoo ntawm kev tawm tsam thiab cov kab hla ntawm cov hlau tawm (R = ρ yog qhov ntev, thiab a yog qhov ntawd Txo rau hauv thaj chaw hla kev hla yuav yuav ua rau muaj kev nce ntxiv.

3. Cov neeg uas yuag tiv thaiv cov xov dej hauv cov ntawv thov

Txawm hais tias nws yog theoretically tseeb hais tias cov thinning hlau ua rau kev nce ntxiv, peb tuaj yeem pom tau tias muaj cov hlau tsis kam ua rau cov neeg hlau tsis kam. Piv txwv li, hauv qee qhov siab-precision kam ua li cas, los ntawm kev tswj hwm qhov loj ntawm cov xaim hluav taws xob, tsis tiav tus nqi tsis kam, li kev txhim kho qhov tseeb ntawm Circuit Court.

Ib qho ntxiv, hauv cov cua sov, cov hlau ua hauj nkab kuj tseem tuaj yeem ua rau muaj kev tiv thaiv tsawg. Tus thermistor yog ib qho tivthaiv uas siv cov kev hloov kom sov hloov pauv hloov tus nqi tiv thaiv. Thaum qhov kub nce, cov khoom siv ntawm cov hlau cuam tshuam yuav nthuav dav, ua rau cov hlau tsis kam ua kom yuag, yog li ua rau muaj kev tiv thaiv. Cov xeeb ceem no tau siv dav hauv kev ntsuas kub thiab ntsuas thiab tswj.

4. Xaus

Los ntawm kev tsom xam ntawm kev sib raug zoo ntawm kev tawm tsam hlau thiab tam sim no thiab voltage, peb tuaj yeem xaus tias thinning hlau yuav ua rau muaj kev nce ntxiv. Txawm li cas los xij, hauv qee qhov kev thov tshwj xeeb, cov thinning hlau kuj tseem tuaj yeem ua rau qhov txo qis, uas feem ntau yog nyob ntawm cov khoom ntiag tug thiab cov cai thov.

Ntsiab lus:

Tsab ntawv no rho tawm mus rau qhov teeb meem ntawm kev hloov pauv ntawm cov thinning ntawm cov xov hlau tiv thaiv. Hauv kev tshawb xav, ib lub thinner resistance hlau yuav ua rau muaj kev nce siab; Txawm li cas los xij, hauv cov ntawv thov siv, tseem muaj cov xwm txheej uas ua rau txo qis kev tiv thaiv. Peb tau hais txog qee kis hauv cov ntawv thov teb, ua qauv qhia qhov sib txawv thiab hloov pauv ntawm cov xov hlau uas tsis ua hauj lwm. Los ntawm tsab xov xwm no, cov nyeem tau tuaj yeem nkag siab ntau dua ntawm kev cuam tshuam ntawm kev sib tw ntawmistance cov xov hlau, nrog rau lawv daim ntawv thov scenarios thiab cov yam ntxwv hauv kev siv cov ntawv thov.