Ka whakamahia e te whakarewa ultrasonic tētahi pūkaha ultrasonic hei huri i te iahiko 50/60 Hz ki te pūngao hiko 15, 20, 30, 40 KHz rānei. Ka hurihia anō te pūngao hiko auau-teitei kua hurihia hei nekehanga miihini o te auau kotahi mā te transducer, kātahi ka tukuna te nekehanga miihini ki te pane whakarewa mā roto i tētahi huinga taputapu haona ka taea te whakarerekē i te kaha. Ka whakawhitia e te pane whakarewa te pūngao wiri kua riro mai ki te hononga o te mea mahi hei whakarewa. I tēnei wāhi, ka hurihia te pūngao wiri hei pūngao wera mā te waku hei whakarewa i te kirihou. Ka taea te whakamahi i te ultrasonic ehara i te mea hei whakarewa i ngā thermoplastics mārō anake, engari hei tukatuka hoki i ngā papanga me ngā kiriata. Ko ngā wāhanga matua o tētahi pūnaha whakarewa ultrasonic ko te pūkaha ultrasonic, te pūkaha/pane whakarewa rōpū-toru, te pokepokea ai me te anga. Ka whakamahia e te whakarewa waku wiri rārangi te pūngao wera waku i hangaia i te mata pa o ngā mea mahi e rua hei whakarewa hei whakarewa i te kirihou. Ka puta te pūngao wera mai i te nekehanga tauutuutu o tētahi mea mahi i runga i tētahi atu mata me tētahi nekehanga, kaha rānei i raro i tētahi pēhanga. Kia tae ki te taumata whakarewa e tumanakohia ana, ka mutu te wiri, ā, i taua wā anō ka mau tonu te pēhanga ki ngā wahi mahi e rua hei whakamatao me te whakapūmau i te wāhanga kua whakarewahia, kia hanga ai he hononga piri. Ko te whakarewa wiri ā-pōkai he tikanga whakarewa e whakamahi ana i te pūngao wera waku. I te wā e mahi ana i te whakarewa wiri ā-pōkai, ka mahi te wahi mahi o runga i te nekehanga ā-pōkai i te tere pumau-porowhita i ngā taha katoa. Ka taea e te nekehanga te whakaputa pūngao wera, kia tae ai te wahi whakarewa o ngā wahi kirihou e rua ki te pūwāhi rewa. Kia tīmata te rewa o te kirihou, ka mutu te nekehanga, ā, ka whakapūmau ngā wahi whakarewa o ngā wahi mahi e rua, ā, ka hono pūmau tetahi ki tetahi. Mā te kaha piri iti ka iti te whakarerekētanga o te wahi mahi, ā, ka taea te whakarewa i ngā wahi mahi he iti iho i te 10 inihi te diameter mā te whakamahi i te waku wiri ā-pōkai.

He matatau tō mātou wheketere ki ngā momo mahipokepokea aingā tukanga, ko te whakarewa ultrasonic tētahi o aua tukanga, kei a mātou anō hoki te tuanui whakarara, te reti reti me ētahi atu tukanga. Homai tāu pokepoke hei hanga, ka taea e koe te okioki mārie.