Ndechipi resistor - huru zvinhu

vanhu vazhinji, kunyange kure zvinetso wefizikisi, zvemagetsi engineering, zvemagetsi utermine vakanzwa akadai "Kusaurayiwa" kana shoko idzva - resistor. Zvisinei, vanhu vashoma vanoziva kuti chii uye chii rinoshandiswa. Saka chii chinonzi resistor?

Ndipindure mubvunzo uyu nyore. Resistor - chimwe chezvinhu zvakafanana magetsi zvinoriumba mu redhiyo, tele-video-zvakarekodhwa michina. The chikuru tive resistors riri kurwisa kwayo, icho akayera mu vamapoka ohms chipimo. Pane mhando mbiri huru mano aya vakawanda chinangwa uye anonzi yakatsiga. Chii yakagadzikana resistor? Zviri zvikuru mano anodhura zvinoshandiswa dzakakwirira-kururama michina. Zvikurukuru shandisa zvavo chinangwa resistors.

Nemishonga talk chinangwa resistors ingasiyana mukati anenge +/- 10%. The kurwisa kunobva vanonzi tembiricha coefficient kurwisa (ari kushandiswa kwemabhuku pane rutapudzo TCR). Most mureza resistor ichi chakanaka chokufunga. Izvi zvinoreva kuti kuwedzera kupisa kunowedzera uye kurwisa.

Ndeipi nemishonga tichitarisa zvachiri? Chimwe chinokosha zvechadenga resistors anganzi simba nounzenza. Ndiro simba kuti anogona kupera pasina kuraramisa kukuvara. Power, sezvo tichiziva, kunoonekwa muzvikamu yakayerwa sezvo Watts. Kuziva aizviti kurwisa uye magetsi ruchiyerera napakati yemagetsi redunhu, inogona akaverenga uye goho. Zvinonzi rakamiswa pamusoro nzira P = I ^ 2 * R, apo P - simba, I - kukosha amperage, R - chezita resistor. Zvinogona akagumisa kuti rakadaro resistor kubva nemaonero ari magetsi okugadzira. Ndicho chikuru STRUCTURAL chikamu chipi redunhu, ane basa chikuru ndiko kupa aizviti (anozivikanwa) kuramba aibuda zvemagetsi kuitika mukati redunhu nechinangwa voltage murau iyezvino. Kazhinji kushandisa inonzi kutsigisa igwa kuti chinangwa yokudzora ari voltage mudunhu. Chii kutsigisa igwa resistor? mudziyo ichi chinobatanidza kuti mambure absorbs vamwe zvakawandisa voltage, nokudaro yokuenzanisa kuti dzenzvimbo iri nomumwe pamatavi redunhu uye kuramba voltage pakusimba. On nheyo idzi rakagadzirirwa akatungamirira uye resistor. Kuti akatungamirira chaizvoizvo kwete pakarepo kupiswa nokuisa kuitika kuburikidza nayo, zvakabatanidzwa pawo mune dzino tokogasitelny resistor.

The kurwisa of resistor kunotsamira zvokunyama icho inoitwa. It inobvawo pamusoro fura nzvimbo (zvikuru munharaunda yacho cutoff, shoma kurwisa) kubva resistor urefu (kwenguva refu ndizvo, kuti akagamuchirawo kurwisa kwazvo).

Resistors nyore anoratidza ruvara kana kuti digitaalinen signage. Achibatsirwa imwe Kunyora kwakadaro kunobvira kudzidza chinokosha pfuma upi resistor, kureva kukosha kurwisa kwayo. Dzidza zvinorehwa imwe ruvara kana mufananidzo kunogona pasipoti kana zano mugadziri kana nokutengesa (somuenzaniso, pamusoro Website).