I-LMEC-17 Izixhobo zokulinganisa ukuva nokuva umda
Esi sixhobo kufanelekile kwizidanga zokuqala zonyango kunye nezidanga zokuqala ukulinganisa umjikelo womqobo. Ngokubanzi, inkcazo yomqobo weentlungu kufuneka ifikelele kwintlungu yendlebe, kodwa abafundi kufuneka baqonde kuphela umgaqo wovavanyo, kwaye xa belinganisa umqobo weentlungu, kufuneka balungelelanise inqanaba loxinzelelo lwendlebe kwindlebe kwaye bazive bengenakunyamezeleka. Ngokuzama, abafundi banokuluqonda ulwazi lomzimba lwamandla esandi, inqanaba lesandi, ukungxola, inqanaba lokuphakama kunye nejika lokuva, kwaye babeke isiseko esihle sokusetyenziswa kweklinikhi ye-audiometry kwixa elizayo.
Imisebenzi
1.Yazi indlela yokulinganisa ukuva kunye nomqobo wokuva;
2. Misela umjikelo wokuva kwendlebe yomntu.
Icandelo kunye neenkcukacha
Inkcazo | Ukucaciswa |
Umthombo wophawu | Uluhlu lwamaxesha: 20 ~ 20 kHz; I-wave sine esezantsi (isitshixo esilawulwayo) |
Imitha yedijithali yemitha | 20 ~ 20 kHz, isisombululo 1 Hz |
Imitha yamandla esandi sedijithali (imitha yedB) | isalamane -35 dB ukuya kwi-30 dB |
Iseti yentloko | inqanaba lokubeka iliso |
Ukutya umbane | <50 W |
Incwadana yemiyalelo | Inguqulelo ye-elektroniki |
Bhala umyalezo wakho apha uze uyithumele kuthi