A lasifika, magana, ko magana tsarin ne electromechanical transducer cewa sabobin tuba wani sakonni. A lokaci lasifika iya koma ga wani mutum na'urar ko direba, da kuma cikakken tsarin kunsha mai shinge corporating daya ko fiye direbobi da kuma ƙarin lantarki.
Loudspeakers ne mafi m abubuwa a wani audio tsarin, da kuma ke da alhakin alama audible bambance-bambance tsakanin in ba haka ba m sauti tsarin. Lasifika yi ko daidaito a haifuwa wata sigina ba tare da ƙara murdiya ne muhimmanci poorer fiye da na sauran audio equipments.
Wasu muhimmanci mutanen da suka sanya tarihi
Ernst W. Siemens shi ne na farko da su bayyana tsauri ko motsi nada transducer, tare da madauwari nada na waya a wani Magnetic filin da kuma goyan bayan haka da cewa shi zai iya matsawa axially. Ya yi wa Amurka patent aikace-aikace na Magneto lantarki {asa don samun inji motsi na wani lantarki nada ta hanyar na'urar igiyoyin daukar kwayar cutar ta hanyar da aka sanya patent No.149797 a kan Afrilu 14, 1874.
Oliver Lodge yi domin Birtaniya patent No.9712 a kan Apr. 27, 1898, don inganta lasifika da nonmagnetic spacers a ci gaba da iska rata tsakanin ciki da kuma m sandunan da wani motsi nada transducer. Wannan shi ne wannan shekara ya amfani ga wani lamban kira a kan ya shahara rediyo mai gyara.
Thomas Edison aka bayar a Burtaniya lamban kira a lokacin 1881, a tsarin amfani da matsa iska matsayin aga inji for farkon Silinda phonographs, amma ya kyakkyawan zaunar ga saba karfe Kakakin kore wani membrane a haɗe zuwa Stylus.
Harold Arnold a kusa da 1925 suka fara shirin a Bell Labs inganta phonographic rikodin sauti. A farko fifiko ne lantarki amfilifa amfani da sabon injin tube, na biyu kuwa shi ne Reno, da kuma na uku shi ne lasifika cewa zai inganta daidaita armature raka'a raya ga jama'a adireshin.
Bell dakunan gwaje-gwaje a 1931 ɓullo da biyu hanya loudspeakers, da ake kira raba iyaka ga zanga-zanga da HA Frederick na tsaye yanke records. A high mitoci aka maye gurbinsu a kananan Kakakin tare da mita martani daga 3000 zuwa 13,000 Hz, da kuma low mitoci ta 12 inch tsauri mazugi kai tsaye lagireto naúra da mita martani cikin 5db daga 50 zuwa 10,000 Hz.
Yadda cikin loudspeakers amfani da aiki
A farko loudspeakers amfani electromagnets saboda manyan, mai iko m maganadiso ba samuwa a m kudin.
A nada wata electromagnet, ya kira wani filin nada, aka samun karfafawa ta yanzu ta biyu biyu daga haši zuwa direba. Wannan Tuddan yawa ana bauta a dual rawa, mukaddashin ma a matsayin shaƙa nada tace da ikon samar da amfilifa ga abin da lasifika aka alaka.
AC ripple a halin yanzu da aka attenuated da mataki na wucewa ta cikin shaƙa nada. Duk da haka, AC line mitoci kula ga modulate da audio sigina da ake aika da murya nada da kuma kara da audible hum na wani powered up sauti haifuwa na'urar.
A ingancin lasifika tsarin har 1950s ya, ta zamani nagartacce, matalauta. Cigaba da aukuwa a yadi zane da kuma kayan sun kai ga gagarumin audible inganta. Mafi mashahuri inganta a zamani jawabai ne inganta a mazugi kayan, da gabatarwar babbar zazzabi adhesives, ingantattun m maganadisu kayan, ingantattun ji dabaru, kwamfuta taimaka zane da kuma guntun kashi analysis.
Tarihi na Loudspeakers shafi Video:
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