He aha te mea te parenga ia āhuatanga

Ko tētahi o nga tawhā ko tetahi raina conductive parenga ia āhuatanga. O ngā pānga riro te reira i te nui-auau tuku irirangi technique, te wahi arata'i te mahi ōritengakore iahiko iti ki distortions nui i roto i te putanga. I te tahi atu te ringa, ia taata tei mau o te rorohiko pā ana ki te atu i roto i te whatunga rohe, anga wā ia rā "parenga ia āhuatanga." Me kï reira e kore e te ahua o whatunga Itarangi o rua miro hoatu te kaiwhakamahi mutunga manukanuka tūhono motuhake, -nuku,, rite tūhono me terminators, rite ko te take ki te rārangi taura tafenga 10 megabit (ranei iti). Heoi, tae noa ki te whakapai kanohi ki te rua miro, te wā "parenga ia āhuatanga" he hāngai. Ko te tikanga, i roto i te mahi o whatunga rorohiko rawa kitea i muri.

Na, he aha te mea parenga ia āhuatanga? Ka rite ki kua kī, ko tetahi o nga āhuatanga o te rārangi conductive i runga i te pūtake o conductors konganuku tenei. He tika te rarangi whakamutunga i roto i te tikanga e kore e ki te uru hou rārangi whatu tuku raraunga me waea parahi matarohia, e ko te kawe pūngao e kore matūriki whakatupato me te marama - i reira e te tahi atu ture. Tenei uara tohu ia i te generator uara ātete (pūtake modulated oscillations hiko) he aho. Kaua e whakapoauau resistance, e taea ana te ruri i te multimeter tikanga, me te parenga ia āhuatanga o te taiao, kia rite ki te hunga ratou mea tino rerekē. E kore e te whakamutunga whakawhirinaki i runga i te roa o te kaiwhakahaere (ko kua nui ki te whakatau e pā ana ki te "ōrite" o ātete tenei). I te pae tino, he reira rite ki te pakiaka tapawha o te ōwehenga o te hiko (Henry) ki te kaha (Farad). He parau iti: ahakoa te meka i whakamahia nga tātai wāhanga urupare o te aho, ko nga wa katoa te ātete poipoi o te ara iahiko i roto i te tātai whakaaro te kaha.

He pai ki te whakaaro katoa o te tauira. A feruri na i te taiawhio ohie arā, o te puna mana (generator, R1), te conductors he parenga ia āhuatanga (R2), me te kiritaki (kawenga, R3). I roto i te take o te taurite o parenga toru katoa tae te pūngao tuku katoa te kiritaki, me mahi te reira mahi whai hua. Ki te i runga i tetahi wahi o tenei whārite e kore e makona, i reira te mea he mahi ōrite. I te wāhi i reira pakaru te aho te, i reira te mea he poipoi kitea, me te wahi o te pūngao hiko mai hoki - ki te generator. Nä, he mea e tika ana ki te whakapiki ake i tona mana ki te utu mo te nui o te pūngao kitea. I roto i te mau parau te tahi atu, pau wahi o te pūngao kei te "kahore", e te tikanga te ngaronga me te mahi kore-tino pai. I tua atu, i roto i ētahi wā, te ōrite te tikanga faanane te mahi o te raina katoa.

Na hoki ki te whatunga rorohiko, te wahi i te ātete poipoi e whai wāhi nui. Hoki ngā rārangi e hāngai ana i runga i te taura tafenga (50 Ohm) he nui ki te faatura i te tikanga: resistance kāri whatunga me kia kia rite te kaiwhakahaere i waenganui ia ratou. Anake i roto i tenei take, mahi pūnaha whakamutunga me te uhupoho. Ki te he i te pae tino tetahi wahi o te raina taura te totoro iti (ki te whakairi ki runga ki te kaiwhakahaere utanga), ka e tika ana ki ngā rerekētanga i roto i te diameter o te conductors i roto i ka huri parenga ia āhuatanga tenei wahi, i reira ka kia kitea poipoi, whawhati iho i te pūnaha. I roto i tenei take e kore ai te raina ātete hohe whanganga huri nui (e kore e whakaaro iti utu rēhita hua i roto i te resistance). Nganatanga ki whakahokia te conductors raina i whakapiringa i runga i te wahi pakaru whakahōhā atu te āhuatanga, no te mea e kore e whakawhiti i reira ātete anake, me te ranunga o taiao rerekē (tine, parahi) i roto i nei tohaina ngaru rerekē.

Ka rite ki rongonui rite te rua miro kāwai 5 parenga ia āhuatanga he 100 ohms. Ngā mihi ki tenei ora kia soldered, a tae noa kopikopiko tonu.