I-Harmonics ikusiza ukuthi uhlukanise izinsimbi ezahlukene zomculo
Uma ufunde noma yisiphi isiyalo se- acoustics , ubuchwepheshe besignali yomsakazo, noma ubuchwepheshe be-elekthronikhi, ungase ukhumbule ukumboza isihloko semvamisa ye-harmonic. Kuyinto engxenyeni ebalulekile yokuthi umculo uzwakala kanjani futhi uyabonakala. Imvamisa ye-harmonic iyisici esisodwa esisisiza ukuba siqonde ngokunembile izinga eliyingqayizivele lomsindo owenziwe yizinsimbi ezahlukene, ngisho nalapho bedlala inothi elifanayo.
Incazelo yenombolo yamaHarmonic
Imvamisa ye-harmonic iyinhlangano evamile futhi ephindaphindiwe yephethini yangaphambili yegagasi, eyaziwa ngokuthi imvamisa eyisisekelo. Uma ingqikithi eyisisekelo ihlelwe kuma- hertz angu-500, ithola imvamisa ye-harmonic yokuqala ku-1000 hertz, noma kabili imvamisa eyisisekelo. Umvuthwandaba wesibili we-harmonic uvele ku-1500 hertz, okuphindwe kabili imvamisa eyinhloko, kanti imvamisa yesithathu ye-harmonic yi-2000 hertz, okuyi-quadruple imvamisa eyisisekelo, njalonjalo.
Esinye isibonelo, i-harmonic yokuqala ye-frequency 750 i-hertz yi-1500 hertz, kanti i-harmonic yesibili ye-750 hertz ingu-2250 hertz. Zonke i-harmonics zihlala ngezikhathi ezithile emvuthweni oyinhloko futhi zingahle ziphulwe zibe uchungechunge lwezinombolo kanye neziqu ze-antinodes.
Imiphumela yeHarmonic Frequency
Cishe zonke izinsimbi zomculo ziveza isici sokuma wave wave equkethe kokubili ama-basic and harmonic frequencies. Ukubunjwa okuqondile kwalezi zikhathi kuvumela indlebe yomuntu ukuba ihlukanise umehluko phakathi kwamanothi amabili okuhlabelela izingoma ezihlangene ezihlanganisweni ezifanayo (imvamisa) kanye neveli (amplitude). Lokhu futhi ukuthi siyazi kanjani ukuthi igitala lizwakala njengegitala hhayi i-oboe noma icilongo noma ipiyano noma isigubhu. Ngaphandle kwalokho, wonke umuntu nakho konke kuzokuzwakala okufanayo. Abaculi abanekhono bangakwazi ukuhlaziya izinto ngokulalela nokuqhathanisa ama-harmonic frequencies phakathi kokulungiswa.
I-Harmonics Versus Overtones
Igama elithi "overtones" livame ukusetshenziselwa izingxoxo eziphathelene nama-harmonic frequencies. Nakuba okufanayo-i-harmonic yesibili yi-overtone yokuqala, i-harmonic yesithathu yi-overtone yesibili, ngakho-ke le mibandela emibili ihlukile futhi iyingqayizivele. Ama-overtones anesandla esivumelwaneni esiphezulu noma isiteji somsindo wezinsimbi.
Ukuphazamiseka kweHarmonic Frequency kuBakhulumi
Abathengi banomsebenzi wokuletha ukumelela okunembile kwama-harmonic wezinsimbi abazenzayo. Ukulinganisa umehluko emkhatsini wemisindo engenayo kanye nokukhipha kwezipikha, incazelo ye- Total Harmonic Distortion (THD) inikezwe kwisipikha ngasinye-isilinganiso esingaphansi, kube ngcono ukulethwa komsindo kwesipikha. Isibonelo, i-THD ye-0.05 isho ukuthi amaphesenti angu-0.05 omsindo ovela kulesi sikhulumi aphikisiwe noma angcolile.
Izinto ze-THD kubathengi basekhaya ngoba bayakwazi ukusebenzisa izilinganiso ze-THD ezibalwe isikhulumi ukuze bahlole ikhwalithi yezwi abangayilindela ukuyithola kusuka kuleso sikhulumi. Ngokweqiniso, umehluko kuma-harmonics amancane, futhi abantu abaningi cishe ngeke babone umehluko wephesenti wamaphesenti ku-THD kusuka kwesinye isikhulumi kuya kwesilandelayo.
Kodwa-ke, uma imvamisa ye-harmonic ihlanekezwa ngamaphesenti angu-1, izinsimbi zokuqopha okungeyona engokwemvelo, ngakho-ke kuwukuhlakanipha ukuhlala kude nezikhulumi ekupheleni kwesilinganiso se-THD.