N'adịghị ka stethoscopes na-adabere na otu physics, ndị na-agbanwe agbanwe na stethoscopes kọmputa dịgasị iche iche. Usoro kachasị mfe na nke kachasị dị irè nke nchọpụta ụda na-enweta site n'itinye igwe okwu n'ime obi. Usoro a na-ata ahụhụ site na mkpọtụ mkpọtụ gburugburu ebe obibi ma daa n'anya. Usoro ọzọ, nke a na-eji na Welch-Allyn's Meditron smartphone stethoscope, gụnyere ntinye nke kristal piezoelectric na isi nke eriri igwe, ala nke eriri ahụ na-eme ka kọntaktị na diaphragm. 3M na-ejikwa piezoelectric-electric foam n'azụ a thick rubber-like crystal diaphragm?
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