Ko te tikanga ohie, me te iti rawa whai hua o te kitenga tangi ka tutuki mā te whakatakoto i te hopuoro i roto i te pouaka. Ko tenei tikanga e mamae ana i te haruru o te taiao, a kua hinga i roto i te manakohia. Ko tetahi atu tikanga, whakamahia i roto i te Welch-Allyn's Meditron atamai stethoscope, ngā o te whakatakoto i te karaihe piezoelectric karaihe i te upoko o te rakau whakarewa, te raro o te rakau hanga whakapā ki te diaphragm. 3M whakamahi hoki te piezoelectric-karaihe i muri i te karaihe matotoru-rite rapa rapa matotoru-rite, rerekē transducers i roto i stethoscopes hiko whānui. Whakaarohia he aha te tikanga o te papa koretake i roto i te koretake o nga huringa rangi ki te awhi i roto i te awhi i roto i te papa koretake ranei. Whakamahia te tikanga o te diaphragm kore-waea.
kua kore e manakohia