Incazelo
I-Ultrasound isho noma yiliphi igagasi lomsindo noma ukudlidliza okuvama kwayo kweqa umkhawulo ophezulu ongu-20kHz (kHz) ongazwakala yindlebe yomuntu. Igagasi lomsindo elinefrikhwensi ephezulu kuno-20000 Hz. Inokuqondisa okuhle, ikhono lokubonisa eliqinile, futhi kulula ukuthola amandla e-acoustic agxile kakhulu. Ihamba ibanga elide emanzini kunomoya, futhi ingasetshenziselwa ukulinganisa ibanga, ukulinganisa isivinini, ukuhlanza, ukushisela, nokuphuka. Itshe, inzalo, njll. I-Ultrasound isetshenziswa kabanzi emikhakheni eminingi efana nemithi, ezempi, izimboni, ezolimo, ubuhlakani, njll. ngenxa yezici zayo zokuvama okuphezulu. I-Ultrasound iqanjwe ngenxa yokuthi umkhawulo wayo ophansi wemvamisa weqa umkhawulo ongaphezulu wokuzwa komuntu.
Imvamisa ye-ultrasonic
Ososayensi babiza inani lokudlidliza ngomzuzwana imvamisa yomsindo, futhi iyunithi yalo i-Hertz (Hz). Ibanga lokuvama kwamaza omsindo izindlebe zethu zomuntu ezingawezwa ngu-20Hz-20000Hz. Amaza omsindo ane-frequency engaphezu kuka-20,000 Hz abizwa ngokuthi “amaza e-ultrasonic”. Imvamisa yamagagasi e-ultrasonic avame ukusetshenziswa ekuxilongweni kwezokwelapha ngu-1 MHz ukuya ku-30 MHz.
Ezinye izilwane, njengezinja, amahlengethwa namalulwane, zinezindlebe ezidlula abantu, ngakho-ke ziyakwazi ukuzwa amaza e-ultrasound. Abanye basebenzise lesi sici ukwenza imitshingo yezinja ekwazi ukukhiqiza amaza e-ultrasonic ukubiza izinja.
Okubizwa ngokuthi amagagasi e-ultrasonic adlula kuphela emithonjeni ye-elastic ne-inertial, njengomoya. Lapho umoya ngokwawo ukhula noma uminyanisa, kuba nokusakazeka kwamagagasi ngokuhamba kwama-molecule awo. Ngakho-ke, amaza omsindo awakwazi ukusabalala endaweni engenalutho. Ukuzwa komuntu kungabona ukushintshashintsha futhi kubize umsindo. Ngalesi sikhathi, amaza omsindo abizwa ngokuthi amagagasi azwakalayo.
