Trimmer resistor - ib yam ntawm cov loj hluav taws xob ntsiab

Nyob rau hauv niaj hnub circuits tau lug thov mus rau ntau yam kev hloov kho resistors. Lub ntsiab parameter xws ntsiab - qhov no hluav taws xob kuj. Cov theem nrab cov yam ntxwv ntawm tej qhov chaw yuav muaj xws li ib tug tshaj plaws hwj chim dissipation thiab qhov yuam kev kuj ntsuam xyuas. Nyob ntawm seb cov tau hloov ntawm kuj, paub qhov txawv constants thiab ntau yam ntawm no hom ntawm xov tooj cua Cheebtsam. Tus thawj hom caij muaj ib tug meej kuj uas yuav hloov tsis tau. Nyob rau hauv lem, tus thib ob embodiment ntawm no tivthaiv tej zaum yuav hloov no cov yam ntxwv. Qhov no hauv chav kawm ntawv qhov chaw xws li ib tug potentiometer, rheostat, nce mus nce los resistor thiab trimming. Tus thawj ob yog feem ntau siv rau hauv hwj chim electronics, lub yav tas ob yog feem ntau siv nyob rau hauv microelectronic pab kiag li lawm.

Nyob rau ib tug tsim nce mus nce los thiab trimmer muab faib mus rau hauv provoloochnye thiab besprovoloochnye. Nyob ntawm seb yuav ua li cas cov kuj hloov txawv teb thiab slider.

Cov feem ntau yooj yim tsim ntawm provoloochnogo resistor. Raws li rau lub hauv paus, nws ua raws li ib tug insulating lub nplhaib. Qhov no lub caij yog lub qhov txhab hlau, qhov xaus ntawm uas yog txuas mus rau lub 2nd huab hu radioelement. Sab saum toj kov txheej nrog ib tug slider (nws yuav tsum haum snugly rau lub nplhaib) thiab haum nrog ib tug zawj rau cover kev sib hloov ntswj ntsia hlau. Nyob rau hauv lub kauj ruam tom ntej tsim central sib cuag, uas yuav txuas ntawm ib tug central davhlau ya nyob twg thiab lub caij muaj kev sib hloov. Cov kauj ruam kawg ntawm manufacturing xws li ib tug xov tooj cua li trimmer, muaj nyob rau hauv kev txhim kho cov ua ke qauv nyob rau hauv ib tug tiv thaiv vaj tse nyob. Yog li ntawd luv luv zoo hauj saw uas siv ntawm cov Cheebtsam. Yog hais tias qhov khoom yog muab rau cov chav kawm ntawv besprovoloochnyh ces es cov kauj ruam ntawm winding hlau - nplhaib yog ua los ntawm ib tug dielectric yog tsis tau, thiab twb nyob ib zaug los ntawm ib tug siab kuj khoom (feem ntau - ib tug tsawg lub ntiaj teb cov ntaub ntawv uas muaj ib tug heev tus nqi). Tus nqi nqi ntawm Cheebtsam ua nyob rau hauv no txoj kev, ntau tshaj nyob rau hauv thawj cov ntaub ntawv, thiab vim hais tias lawv tseem tsis tau ua ntau.

Qhov no hluav taws xob khoom nyob loj tshaj siv nyob rau hauv lub amplifier theem (nrog nws tswj ntawm koj qhov nce). Thaum lub tswv yim resistor yog teem qhov tsis kam, thiab nyob rau hauv ib tug tso zis - nrog ib tug kuj tsis paub meej. Tom qab lub kaw ua ke tswvyim yog ntawm lub xeem caij xaiv yam nce tau. Yuav kom qhov no spinning qhov kom txog thaum txog thaum ib yam theem ntawm lub lag luam. Tom qab chaw yog tag nrho, lub kua roj vanish muaj ntaub ntawv rau sab saum toj (mus rau lub resistor). Trimmer tivthaiv tej zaum mej tig (los ntawm kov, co, lub caij nplooj zeeg) thiab ces yuav tau kho lub tswvyim dua. Kom tsis txhob no, thiab yog thov mus rau lub sab saum toj lacquer rau kho tus kuj muaj nqis.

Npaum qhov tseem ceeb ntawm lub luag hauj lwm ua si los ntawm cov trimmer nyob rau hauv niaj hnub microprocessor tshuab (thiab tsis xwb), nws yog heev yooj yim. Tab sis nws muaj kev ruaj ntseg hais tias xws li ib tug xov tooj cua kev tivthaiv yog siv nyob rau hauv yuav luag tag nrho cov hluav taws xob. Thiab Trimmer txhua txhua xyoo yog nrhiav ua daim ntawv thov nyob rau hauv lub tshiab Circuit Court daws teeb meem.