los ntawm Chesnimages
Cov Hom Resistors
Resistors yog ib feem tseem ceeb ntawm hluav taws xob thiab muaj ntau heev uas lawv feem ntau tau txais kev tso cai. Cov resistors ua haujlwm raws li lub hauv paus ntsiab lus ntawm Ohm Txoj Cai uas siv txoj kev xav tias tam sim no khiav los ntawm tus neeg xyuas pib los ntawm point A mus rau point B yog ncaj qha proportional rau qhov voltage hla ob lub ntsiab lus.
Yooj yim muab, Ohm txoj cai yog qhov tshwm sim ntawm peb qhov kev sib npaug ntawm lej qhia txog kev sib raug zoo ntawm voltage, tam sim no, thiab hluav taws xob. Siv cov kev sib npaug no, ib tus tuaj yeem ua haujlwm rau lawv ua ke los qhia qhov sib txawv, tseem hu ua qhov poob qis.
Cov muaj pes tsawg leeg resistor yog hom resistor feem ntau. Cov resistors no tsis kim thiab yog multi-functional. Qhov kev tiv thaiv yog tsim los ntawm finely grounding carbon plua plav thiab combining nws nrog graphite nrog ib tug uas tsis yog-conductive av nplaum hmoov fuses nws tag nrho ua ke. Tag nrho cov sib tov yog zoo li tus cylindrical pwm uas tau txuas hlau hlau ntawm txhua qhov kawg. Cov ntawv txuas no muab kev sib txuas hluav taws xob. Lawv raug cais nyob rau hauv qeb ntawm qis mus rau nruab nrab lub zog resistors, ua rau lawv ua tus neeg sib tw siv tau rau kev siv ntau zaus.
Zaj duab xis resistors yog ua los ntawm hlau zaj duab xis, carbon zaj duab xis thiab hlau oxide zaj duab xis resistor hom. Feem ntau, lawv tau tsim los siv cov hlau ntshiab uas tau muab tso rau hauv ib qho insulated ceramic pas nrig. Qhov no resistor tso cai rau kom muaj kev kam rau siab ua hauj lwm thaum muab piv rau ib qho yooj yim carbon muaj pes tsawg leeg resistor. Cov resistors no muaj tus nqi ntau dua ohmic nrog rau qhov muaj zog ntau dua qhov kub thiab txias nyob rau hauv kev sib piv rau lawv cov carbon counterpart. Lawv tsim suab nrov tsawg uas ua rau lawv muaj kev xaiv zoo dua rau kev siv ntau zaus.
Hlau-qhov txhab resistors yog npaj los ntawm winding ib tug nyias hlau alloy hlau hla ib tug ceramic qub nyob rau hauv ib tug kauv daim ntawv. Nws yog me ntsis zoo ib yam li zaj duab xis resistor raws li lawv ob qho tib si txhais tau hais tias tuav cov hluav taws xob ntau dua li lwm hom resistors. Hlau-qhov txhab resistors yog mounted yooj yim rau cov hlau phaj thiab heatsinks. Qhov no ua rau lawv muaj peev xwm tuav tau cov cua sov thiab yuav ua rau lawv muaj peev xwm.