日前,一位伊朗纳米电子研究学者研制出了一款世界上最小的扩音器。这款电容式扩音器只有0.5×0.5毫米大小,肉眼几乎不可见,它具有极高的感应能力,能源消耗也非常低。它可以广泛应用于医疗卫生、信息监测、渔业生 Recently, an Iranian nanoelectronics research scientist developed one of the smallest microphones in the world. This capacitive speaker is only 0.5 × 0.5 mm size, the naked eye is almost invisible, it has a high sensing capability, energy consumption is also very low. It can be widely used in health care, information monitoring, fisheries students