Indlela yokusetha i-amplifier nge-multimeter
Kungakhathaliseki ukuthi uhambo lwasekuseni kakhulu noma uhambo lwasebusuku kakhulu, ukudlala umculo osuka ku-stereo yemoto yakho kungenye yezindlela imizwa engcono. Okwenza kube ngcono kakhulu uhlelo oluhle lomsindo olukunikeza yonke into ezwakalayo ongayinikeza.
Ukusetha okufanelekile kwenzuzo ku-amplifier yakho kuzokusiza ukuzuza izinga eliphezulu lomsindo. Kodwa-ke, abantu abaningi abazi ukuthi iyini i-amplifier futhi abazazi izinyathelo ezifanele zokulungisa kahle ukulawulwa kwenzuzo.
Lesi sihloko sikwethulela Konke odinga ukukwazi, kufaka phakathi ukushuna kwesinyathelo ngesinyathelo nge-DMM nje. Ake siqale.
Kungani i-multimeter iyithuluzi elilungile?
Ebizwa nangokuthi i-multitester noma i-volt-ohmmeter (VOM), i-multimeter iyithuluzi elisetshenziselwa ukukala inani le-voltage, yamanje, nokumelana okukhona engxenyeni ye-electronic. I-multimeter kulula ukuyisebenzisa.
Ngakolunye uhlangothi, i-amplifier iyisisetshenziswa sikagesi esisetshenziselwa ukukhulisa noma ukukhulisa amandla kagesi, amanje, noma amandla (amplitude) esiginali ukuze kuzuzwe okuthile.
Iyini inzuzo ye-Amplifaya? Kuyisilinganiso nje se-amplitude esivela ku-amplifier.
Yile ndlela i-multimeter ne-amplifier ehlangana ngayo. Ukushuna i-amplifier kusho ukushintsha izinga le-amplitude lezipikha zemoto yakho. Lokhu kuthinta ikhwalithi yomsindo ophuma esipikheni futhi, ngokulandelayo, umuzwa wokulalela usuwonke.
Ungasebenzisa izindlebe zakho kuphela ukuthola ukuthi lezi zimpawu zomsindo ziphuma kahle kangakanani. Kodwa-ke, lena akuyona indlela engcono kakhulu yokuthola umsindo ongcono kakhulu, njengoba ukuhlanekezela okuncane kakhulu kungase kuphuthelwe.
Yilapho i-multimeter ifika kahle.
I-multimeter yedijithali ikubonisa izinga eliqondile lokukhulisa amasignali akho omsindo.
Lapho unamanani athile ohlose ngawo nge-amplitude yesiginali, i-multimeter ikuvumela ukuthi uwathole kalula.
Naphezu kwakho konke lokhu, akulula njengoba kubonakala. Lapho usetha i-amplifier, i-voltage ekufakweni kweyunithi yekhanda kufanele ifane nokuphuma kwayo. Lokhu kuqinisekisa ukuthi iziqeshana zomsindo ziyagwenywa.
Manje njengoba izinto eziyisisekelo sezimboziwe, ake sehlele ebhizinisini.
Ukusetha i-amplifier nge-multimeter
Ngaphezu kwe-multimeter, uzodinga amathuluzi athile. Lezi zihlanganisa
- Isipikha sokuhlola isikhulisi
- Imanuwali ye-Amplifaya ukuze ufunde kabanzi ngayo
- Isibali sokulinganisa ngokunembile isamba sokucindezeleka, kanye
- I-CD noma omunye umthombo odlala umsindo ku-60 Hz.
Zonke zinokusetshenziswa kwazo lapho ulungisa i-amplifier. Nokho, uzosebenzisa ifomula. Leyo;
E = √PRlapho u-E eyi-voltage ye-AC, u-P ungamandla (W) kanye no-R ukumelana (Ohm). Landela lezi zinyathelo ngokucophelela.
- Hlola imanuwali ukuthola amandla anconyiwe okukhiphayo
Bheka imanuwali yomnikazi we-amplifier ukuze uthole ulwazi mayelana namandla ayo okukhipha. Ngeke kushintshe futhi ufuna ukukubhala phansi ngaphambi kokuqhubeka.
- Hlola i-impedance yesipika
Ukumelana kukalwa ngama-ohms (ohms) futhi ufuna ukurekhoda ukufundwa kwama-ohms kusipika. Le nqubo ilula.
Okufanele ukwenze nje ukuxhuma izixhumi ezisekelweni zazo; isixhumi esiphumayo esifundiwe sixhuma kusixhumi se-VΩMa, futhi isixhumi esimnyama sixhuma kusixhumi se-COM.
Uma lokhu sekwenziwe, uhambisa isikhethi se-multimeter kulogo ethi "Ohm" (evame ukumelwa ngokuthi "Ω") futhi uqiniseke ukuthi ifunda u-0 ngaphambi kokuthatha noma yiziphi ezinye izinyathelo. Lokhu kubonisa ukuthi izixhumi eziholayo azithinti.
Manje uthinta izingxenye zesekhethi eziveziwe kusipika ngala maphini. Yilapho unaka ukufundwa kwe-ohm ku-multimeter.
Amanani okumelana kuma-ohms ashintshashintsha cishe ku-2 ohms, 4 ohms, 8 ohms no-16 ohms. Nawu umhlahlandlela wokulinganisa ukuvinjelwa kwesipika.
- Bala Ithagethi ye-AC Voltage
Yilapho le fomula eshiwo ngenhla ingena khona. Ufuna ukunquma i-voltage eqondiwe usebenzisa amandla we-amplifier anconyiwe kanye namanani e-impedance yesipika owaphawule phansi.
Yilapho ufaka khona amanani kufomula.
Isibonelo, uma okukhiphayo kwe-amplifier yakho kungu-300 watts futhi i-impedance ingu-12, i-voltage ye-AC eqondiwe (E) izoba ngu-60 (impande eyisikwele yokuthi (300(P) × 12(R); 3600).
Uzoqaphela kulokhu ukuthi uma ushuna i-amplifier yakho, ufuna ukuqinisekisa ukuthi i-multimeter ifundeka 60.
Uma unama-amplifiers anezilawuli zokuzuza okuningi, ukufundwa kwazo kufanele kufakwe kufomula ngokuzimela.
Manje ngezinyathelo ezilandelayo.
- Nqamula izintambo ezisizayo
Ngemva kokunquma i-voltage eqondiwe, udlulela ekunqamuleni zonke izesekeli ku-amplifier. Lokhu kufaka phakathi izipikha nama-subwoofers.
Ithiphu elilodwa ukunqamula kuphela amatheminali avumayo. Lokhu kuzokuvumela ukuthi wazi ukuthi ungawaxhuma kuphi futhi ngemuva kokuqeda zonke izinqubo.
Ngaphambi kokuqhubeka, qiniseka ukuthi izikhulumi zinqanyuliwe ngokuphelele ku-amplifier.
- Guqula izilinganisi zibe uziro
Manje usetha wonke amanani esilinganisi ku-zero. Ngokwehlisa ama-knobs kuwo (ngokuvamile aphikisana nokuhamba kwewashi), uthola ububanzi bomkhawulokudonsa ophezulu.
Ama-Equalizer afaka i-Bass, i-Bass Boost Treble, ne-Loudness, phakathi kwabanye.
- Setha ivolumu yeyunithi yekhanda
Ukuze ugcine okuphumayo kwe-stereo kuhlanzekile, usetha iyunithi yekhanda lakho libe ngu-75% wevolumu ephezulu.
- Dlala ithoni
Lokhu okuphumayo komsindo okuvela ku-CD noma omunye umthombo wokufaka owusebenzisela ukuhlola nokushuna kahle isikhulisi sakho.
Noma yimuphi umthombo wokufaka owusebenzisayo, kufanele uqinisekise ukuthi i-sine wave yethoni yakho iku-0dB. Ithoni kufanele futhi ibe phakathi kuka-50Hz no-60Hz ku-subwoofer futhi ibe ngu-100Hz ku-amplifier emaphakathi nebanga.
Gcina ithoni kuluphu.
- Setha i-amplifier
I-multimeter iyasebenza futhi. Uxhuma izixhumi ezimbobeni zesipika se-amplifier; iphinikhodi ephozithivu ibekwe embobeni ephozithivu bese iphinikhodi enegethivu ibekwe embobeni enegethivu.
Manje uphendula kancane kancane ukulawula kwe-amplifier uze ufinyelele ku-voltage ye-AC eqondiwe eqoshwe esinyathelweni sesi-3. Uma lokhu sekufinyelelwe, i-amplifier yakho izoshunwa ngempumelelo nangokunembile.
Kunjalo, ukuze wenze isiqiniseko sokuthi umsindo ophuma kusistimu yakho yomsindo uhlanzeke ngangokunokwenzeka, uphinda lokhu kuwo wonke amanye ama-amps akho.
- Setha kabusha ivolumu yeyunithi yekhanda
Lapha uzokwehlisa ivolumu kuyunithi yekhanda iye kuziro. Iphinde ibulale isitiriyo.
- Xhuma zonke izesekeli futhi ujabulele umculo
Zonke izesekeli ezinqanyuliwe esinyathelweni sesi-4 zibe sezixhunywa kabusha kumatheminali azo. Ngemva kokuqinisekisa ukuthi zonke izixhumi zixhumeke kahle, ukhuphula ivolumu yeyunithi yekhanda bese uvula umculo ofuna ukuwulalela.
Imiphumela
Ungabona ezinyathelweni ezingenhla ukuthi ukusethwa kwe-amp yakho kubonakala kuwubuchwepheshe. Kodwa-ke, ukuba ne-multimeter handy kuzokunikeza ukufundwa okunembe kakhulu okuzokunikeza umsindo ongcono kakhulu.
Ngaphandle kokusebenzisa izindlebe zakho ngokungathembeki, ezinye izindlela zokuqeda ukuhlanekezela zihlanganisa ukusebenzisa i-oscilloscope.
Uma zonke lezi zinyathelo zinzima ukuzilandela, le vidiyo ingakusiza.
