Lub ntsiab lus ntawm fluxmeter
Lub fluxmeter yog ib lub tshuab ntsuas magnetic rau ntsuas magnetic flux (tus nqi). Nws yog siv los ntsuas qhov chaw magnetic teb thiab kev tshawb fawb sib nqus ntawm cov ntaub ntawv. Feem ntau siv yog magnetoelectric, hluav taws xob thiab digital integral peb hom.
Yuav ua li cas siv lub fluxmeter
1. Hais txog ib qho coil, koj tuaj yeem cua cov xaim ntawm cov qauv ntawm koj tus kheej, lossis ua ib lub teeb uas loj me ntsis ntawm cov qauv, muab cov qauv tso rau hauv thiab rub tawm rau kev sim;
2. Nruab nrog lub kauj B ruaj khov rau kev sim, qhov tseem ceeb txhua tus qauv specification yuav tsum tau nruab nrog ib qho kev xeem kauj ntawm ib qho kev qhia tshwj xeeb.
3. Nruab nrog Helmholtz kauj rau kev sim, Helmholtz kauj tuaj yeem ntsuas cov qauv hauv qee qhov loj me (tus neeg siv khoom yuav tsum muab cov qauv tsawg kawg nkaus thiab cov qauv loj tshaj plaws).
Vim tias "txoj kev nqa" feem ntau yog siv thaum siv fluxmeter (meter) txhawm rau txheeb xyuas cov hlau nplaum ruaj khov, txoj kev siv cov hlau nplaum sib nqus rau cov qauv hlau nplaum nrog cov coils tiaj tus yog intuitive thiab zoo, tab sis qhov tsis zoo yog tias rau txhua tus qauv ntawm cov qauv sib txawv, Coils ntawm ntau qhov sib txawv yuav tsum tau ua. Kev hais lus nruj me ntsis, rau cov qauv nyias nyias, kev npaj ntawm kev kuaj xyuas coils kuj nyuaj, ua haujlwm hnyav thiab tsis muaj txiaj ntsig. Txawm li cas los xij, siv Helmholtz coils los ntsuas qhov sib nqus flux tuaj yeem daws cov teeb meem saum toj no rau qee qhov, yog li nws yog qhov kev xaiv zoo rau lub fluxmeter los ntsuas qhov sib nqus flux nrog Helmholtz coils.
Ua ntej siv lub fluxmeter, nws yuav tsum tau preheated raws li qhov yuav tsum tau ua, thiab qhov sib nqus drift yuav tsum tau hloov kho thaum siv los ua kom lub drift nyob rau hauv qhov kev teev tseg. Ua ntej txhua qhov kev ntsuas, rov pib dua thiab meej kom tso tawm cov nqi seem lossis cov nqi sib npaug ntawm cov khoom siv hluav taws xob.
Thaum lub tshuab hluav taws xob sib nqus ntawm cov hlau nplaum raug kaw, lub fluxmeter tuaj yeem siv los ntsuas thiab suav cov hlau nplaum seem. Txoj kev suav tshwj xeeb yog: Br=Φ/N/S qhov twg: Φ--magnetic flux; N--coil tig; S--magnetic cross-sectional cheeb tsam.
