Lihlolwa kanjani ibhethri lewashi nge-multimeter (umhlahlandlela)
Okuqukethwe
Amabhethri ewashi amancane, aziwa nangokuthi amabhethri enkinobho, namabhethri amancane aneseli elilodwa angasetshenziswa ngezinto ezihlukene zikagesi. Ungathola lawa mabhethri ayindilinga kumawashi, amathoyizi, izibali, izilawuli kude, kanye namabhodi omama ekhompuyutha yedeskithophu. Okuvame ukwaziwa njengezinhlobo zemali noma izinkinobho. Ngokuvamile, ibhethri yeselula yemali incane kunebhethri yeseli yemali. Ngaphandle kosayizi noma uhlobo, kungase kudingeke uhlole amandla ebhethri ewashi lakho.
Ngakho-ke, namuhla ngizokufundisa indlela yokuhlola ibhethri yewashi lakho nge-multimeter.
Ngokuvamile, ukuze uhlole i-voltage yebhethri, qala usethe i-multimeter yakho kusilungiselelo se-DC voltage. Beka umthofu we-multimeter obomvu kokuthunyelwe kwebhethri okuphozithivu. Bese ubeka intambo emnyama ohlangothini olunegethivu lwebhethri. Uma ibhethri ishajwe ngokugcwele, i-multimeter izofundeka eduze ne-3V.
Ama-voltage ebhethri ahlukene amawashi
Kunezinhlobo ezintathu ezahlukene zamabhethri ewashi atholakalayo emakethe. Banohlobo oluhlukile lwe-voltage, kanti nosayizi nawo uhlukile. Lokhu okuhlukile kungakhonjwa njengohlamvu lwemali noma amabhethri ohlobo lwenkinobho. Ngakho-ke nanka ama-voltages alawa mabhethri amathathu.
| Uhlobo lwebhethri | I-voltage yokuqala | I-voltage yokubuyisela ibhethri |
| Lithium | 3.0V | 2.8V |
| isiliva oxide | 1.5V | 1.2V |
| I-alkaline | 1.5V | 1.0V |
Bese ukhumbula: Ngokusho kwethebula elingenhla, lapho ibhethri ye-lithium ifinyelela ku-2.8V, kufanele ishintshwe. Kodwa-ke, lo mbono awusebenzi kubhethri ye-lithium evamile ye-Renata 751. Ine-voltage yokuqala ye-2V.
Odinga ukukwazi ngaphambi kokuhlolwa
Kulesi sigaba, uzokwazi ukufunda izindlela ezimbili zokuhlola i-voltage yebhethri.
- Ukuhlola kokuqala
- Ukuhlolwa komthwalo
Ukuhlola kwasekuqaleni kuyindlela esheshayo nelula yokuhlola amandla ebhethri ewashi lakho. Kodwa uma uhlola ngaphansi komthwalo, ungabheka ukuthi ibhethri elithile lisabela kanjani ekulayisheni.
Kulokhu, umthwalo ongu-4.7 kΩ uzosetshenziswa ebhethrini. Lo mthwalo ungahluka kuye ngohlobo nosayizi webhethri. Khetha umthwalo ngokwezimpawu zokuphuma kwebhethri. (1)
Okudingayo
- I-multimeter yedijithali
- Ibhokisi lokumelana eliguquguqukayo
- Isethi yezixhumi ezibomvu nezimnyama
Indlela 1 - Ukuhlolwa Kwasekuqaleni
Lena inqubo yokuhlola yezinyathelo ezintathu elula edinga kuphela i-multimeter. Ngakho ake siqale.
Isinyathelo 1. Setha i-multimeter yakho
Okokuqala, setha izilungiselelo ze-multimeter ku-DC voltage. Ukuze wenze lokhu, vula ukudayela kuhlamvu V.DC uphawu.
Isinyathelo sesi-2 - Ukubeka Imikhondo
Bese uxhuma umkhondo obomvu we-multimeter kokuthunyelwe kwebhethri okuphozithivu. Bese uxhuma intambo emnyama esigxotsheni esinegethivu sebhethri.
Ukuhlonza okuhle nokubi kwebhethri lewashi
Amabhethri amaningi ewashi kufanele abe nohlangothi olubushelelezi. Lolu uhlangothi olubi.
Olunye uhlangothi lubonisa uphawu lokuhlanganisa. Lokhu kuhlanganisa.
Isinyathelo sesi-3 - Ukufunda ngokuqondisisa
Manje hlola ukufundwa. Kule demo, sisebenzisa ibhethri ye-lithium. Ngakho ukufundwa kufanele kusondele ku-3V uma kucatshangelwa ukuthi ibhethri ishajwe ngokugcwele. Uma ukufundwa kungaphansi kuka-2.8V, ungase udinge ukushintsha ibhethri.
Indlela yesi-2 - Ukuhlolwa Komthwalo
Lokhu kuhlola kuhluke kancane kokwangaphambilini. Lapha uzodinga ukusebenzisa i-block resistance block, izixhumi ezibomvu nezimnyama kanye ne-multimeter. Njengoba kushiwo ngaphambili, kulokhu kuhlolwa sisebenzisa i-4.7 kΩ enebhulokhi yokumelana eguquguqukayo.
Ithiphu: Ibhokisi eliguquguqukayo lokumelana liyakwazi ukuhlinzeka ukumelana okugxilile kunoma iyiphi isekethe noma isici sikagesi. Izinga lokumelana lingaba ku-100 Ohm kuya ku-470 kOhm.
Isinyathelo sesi-1 - Setha i-multimeter yakho
Okokuqala, setha i-multimeter kuzilungiselelo ze-voltage ye-DC.
Isinyathelo sesi-2. Xhuma ibhulokhi yokumelana ne-multimeter.
Manje sebenzisa izixhumi ezibomvu nezimnyama ukuxhuma i-multimeter neyunithi yokumelana eguquguqukayo.
Isinyathelo sesi-3 - Faka i-Resistance
Bese usetha iyunithi yokumelana eguquguqukayo ibe ngu-4.7 kΩ. Njengoba kushiwo ngaphambili, leli zinga lokumelana lingahluka kuye ngohlobo nosayizi webhethri lewashi.
Isinyathelo sesi-4 - Ukubeka Imikhondo
Bese uxhuma intambo ebomvu yeyunithi yokumelana nokuthunyelwe okuphozithivu kwebhethri lewashi. Xhuma intambo emnyama yeyunithi yokumelana nokuthunyelwe kwebhethri okunegethivu.
Isinyathelo sesi-5 - Ukufunda ngokuqondisisa
Ekugcineni, sekuyisikhathi sokuhlola ubufakazi. Uma ukufundwa kusondele ku-3V, ibhethri lihle. Uma ukufundwa kungaphansi kuka-2.8V, ibhethri libi.
Bese ukhumbula: Ungasebenzisa inqubo efanayo ku-silver oxide noma ibhethri le-alkali ngaphandle kwenkinga enkulu. Kodwa khumbula ukuthi i-voltage yokuqala ye-silver oxide namabhethri e-alkaline ihlukile kuleyo eboniswe ngenhla.
Ukufingqa
Kungakhathalekile ukuthi hlobo luni lwebhethri noma usayizi, khumbula njalo ukuhlola amandla kagesi ngokuya ngezinqubo zokuhlola ezingenhla. Uma uhlola ibhethri ngomthwalo, ikunikeza umbono omuhle wokuthi ibhethri elithile lisabela kanjani ekulayisheni. Ngakho, lena indlela enhle yokuhlonza amabhethri ewashi amahle. (2)
Bheka ezinye zezihloko zethu ngezansi.
- Ungalihlola kanjani ibhethri nge-multimeter
- Ukuhlolwa kwe-multimeter ye-9V.
- Ungayisebenzisa kanjani i-multimeter ukuhlola i-voltage yezintambo ezibukhoma
Izincomo
(1) ibhethri – https://www.britannica.com/technology/battery-electronics
(2) amawashi amahle - https://www.gq.com/story/best-watch-brands
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