Nyora mubhuku rekugadzirisa - kana kuti zvichida kunyange rakagadzirwa nemichina yekutengesa-uye iwe unogona kuverenga tsanangudzo inonzi Total Harmonic Distortion (yakafukidzwa seTTD). Unogona kuwana izvi zvakanyorwa pane vakurukuri, headphones, media / MP3 players, amplifiers, preamplifiers, vanogamuchira , nezvimwewo. Chaizvoizvo, kana zvinosanganisira kubereka inzwi nemimhanzi, zvichaenda (zvinofanira kunge) zvine tsanangudzo iyi iripo. Kuparara kweHarmonic kwakakosha paunofunga nezvemichina, asi pane imwe nguva.
Chii Chinonzi Harmonic Kuparara?
Tsanangudzo yeHotoni Harmonic Distortion imwe inofanidza kuiswa uye kubudiswa kwemashoko ezwi, uye musiyano muzvikamu zvakayerwa sezana. Saka unogona kuona THD yakanyorwa se02.2 muzana nemamiriro ezvinhu akadai ehuwandu hwemhepo uye yakaenzana nemhepo inobata mairi shure kwayo (semu 1 kHz 1 Vrms). Ichokwadi kuti pane zvishoma zvemasvomhu zvinotarisirwa kuverenga Total Harmonic Distortion, asi iyo yose inoda kunzwisisa ndeyokuti inenge yepakati inomirira kuvhiringidza kwehurmonic kana kukanganisa kwehuwandu hunoti - huwandu hwemazana huri nani. Yeuka, chiratidzo chinogadzirwa ndechekuberekwa uye hauna kumbove yakakwana kopi yemuongorori, kunyanya kana zvikamu zvakawanda zvinowanikwa muhurukuro yemutauro. Kana uchienzanisa zviratidzo zviviri pane grafu, unogona kuona zvishoma kusiyana.
Mimhanzi yakagadzirwa nemasikirwo anokosha uye ehurmonic . Kusanganiswa kwemashoko makuru uye ehurmonic kunopa zviridzwa zvemimhanzi zvakasiyana-siyana uye kunobvumira nzeve yevanhu kusiyanisa pakati pavo. Semuenzaniso, violin inotamba nepakati Mutsamba inobudisa huwandu hunokwana 440 Hz uyewo huchibereka maharmonics (mawanda ezvinyorwa zvepamusoro) pa880 Hz, 1220 Hz, 1760 Hz, zvichingodaro. Cello inotarisa pakati imwechete Chinyorwa sezvo violin ichiri kunzwika sa cello nekuda kwezvimwe zvidimbu uye mahara.
Chikonzero Nei Rusununguko rweHarmonic Runokosha
Kana kamwe Kushandura kweHarmonic kwave kuchiwedzera pane imwe pfungwa, unogona kutarisira kuti kunyatsonzwisiswa kwezwi kunokanganisa. Izvi zvinoitika apo maitiro asingadiwi ehurmonic - izvo zvisingawaniki mumuganho wepakuvamba wekupinza - zvinogadzirwa uye kuwedzerwa kune zvakabuda. Saka THD ye1% muzana inogona kureva kuti 0,1 muzana yehuwandu hwechiratidzo inhema uye ine kusakanganiswa kusingadiwi. Kuchinja kwakanyanya kwakadaro kunogona kutungamirira kune ruzivo apo zviridzwa zvinonzwika zvisina kusimba uye kwete sezvavanofanirwa.
Asi chaizvoizvo, Total Harmonic Distortion haigoni kunzwisiswa nenzeve dzevanhu, kunyanya sezvo vadziki vachigadzira zvigadzirwa ne THD tsanangudzo izvo zviduku zvidiki zvezana. Kana iwe usingakwanisi kuramba uchinzwa hafu yepakati yakapesana, iwe haugoni kunyatsoona nhamba ye THD ye 0.001 muzana (iyo inogona kuva yakaoma kunyatsoenzanisa, zvakare). Kwete izvozvo chete, asi tsanangudzo yeHotoni Harmonic Distortion inoruzhinji inokosha iyo haifungi nezvekuti kunyange-uye pasi-kuronga-harmonics zvakaoma sei kuti vanhu vanzwe zvichienderana nevamwe vavo vasinganzwisisiki uye vakakwirira. Saka mhando yemimhanzi inewo basa duku.
Zvose zvinowedzera huwandu hwekuvhiringidza, saka zvakangwara kuongorora nhamba kuitira kuchengetedza mutsara wekubuda kwakachena. Zvisinei, chikamu cheHotoni Harmonic Distortion hachisi chakakosha pane zvinyorwa kana uchitarisa pamufananidzo mukuru, kunyanya sezvo huwandu hunodiwa huzhinji huri pasi pe005%. Izvo zvishoma zvakasiyana muTTD kubva kune rimwe mararamiro kune chimwe chinogona kunge chisina kunyanya kuenzaniswa nezvimwewo zvakatarisa, zvakadai semasikirwo emhando yepamhanzi, nzvimbo yakagadzirwa , uye kusarudza vatauriri vakarurama , kutanga.