BABOL, IRAN–An Iranian scientist has built a tiny capacitor microphone too small to be seen by the naked eye, according to the Iranian Students’ News Agency. The microphone, developed by Bahram Azizollah Ganji, a faculty member at Noshirvani University in the northern Iranian city of Babol, could be used in building small and invisible hearing aids.
The device, which is just half a millimeter long, is reported to be the world’s smallest microphone. Along with hearing aids, other potential medical uses are to receive the sound of the heart for diagnosis of heart problems and examination of fetal health.
Along with its tiny size, the microphone is reported to have additional benefits, including high sensitivity and low power consumption.
