Wehewehe
ʻO ka Ultrasound ka hawewe kani a i ʻole ka haʻalulu i ʻoi aku kona alapine ma mua o ka paepae kiʻekiʻe o 20kHz (kHz) hiki ke lohe ʻia e ka pepeiao kanaka. He hawewe kani me ke alapine kiʻekiʻe ma mua o 20000 Hz. Loaʻa iā ia ka kuhikuhi pololei, ka mana noʻonoʻo ikaika, a maʻalahi ka loaʻa ʻana o ka ikehu acoustic. Hele ʻo ia ma ka wai ma mua o ka ea, a hiki ke hoʻohana ʻia no ke ana mamao, ana wikiwiki, hoʻomaʻemaʻe, wili, a me ka haki ʻana. Pōhaku, sterilization, etc. Hoʻohana nui ʻia ka Ultrasound i nā ʻano he nui e like me ka lāʻau lapaʻau, ka pūʻali koa, ka ʻoihana, ka mahiʻai, ka naʻauao, a me nā mea ʻē aʻe ma muli o kāna mau hiʻohiʻona kiʻekiʻe. Ua kapa ʻia ʻo Ultrasound no ka mea ua ʻoi aku kona palena haʻahaʻa ma mua o ka palena luna o ka lohe kanaka.
Ultrasonic alapine
Kāhea ka poʻe ʻepekema i ka helu o nā haʻalulu i kēlā me kēia kekona ʻo ke alapine o ke kani, a ʻo kāna ʻāpana ʻo Hertz (Hz). ʻO ke alapinepine o nā hawewe kani i lohe ʻia e ko mākou mau pepeiao kanaka he 20Hz-20000Hz. Ua kapa ʻia nā hawewe kani me ka alapine (frequency) ʻoi aku ka nui ma mua o 20,000 Hz. ʻO ke alapine o nā hawewe kani ultrasonic i hoʻohana mau ʻia i ka ʻike lapaʻau ʻo 1 MHz a 30 MHz.
ʻO kekahi mau holoholona, e like me nā ʻīlio, nā iʻa, a me nā ʻōpeʻapeʻa, he mau pepeiao ko lākou ma mua o ke kanaka, a no laila hiki ke lohe i nā nalu ultrasound. Ua hoʻohana kekahi poʻe i kēia hiʻohiʻona no ka hana ʻana i nā ʻohe ʻīlio i hiki ke hana i nā hawewe kani ultrasonic e kāhea aku i nā ʻīlio.
ʻO ka mea i kapa ʻia nā hawewe kani ultrasonic wale nō e hele ma waena o nā media elastic a inertial, e like me ka ea. Ke hoʻonui a paʻi paha ka ea, aia ka hoʻolaha ʻana o ka nalu ma o ka neʻe ʻana o kāna mau mole. No laila, ʻaʻole hiki i nā hawewe kani ke hoʻolaha i loko o kahi hakahaka. Hiki i ka lohe kanaka ke ʻike i nā loli a kapa ʻia he kani. I kēia manawa, ua kapa ʻia nā hawewe kani.
