日本大阪大学工程技术系的科学家用近红外辐射为心脏起搏器和人工内耳等植入式微型装置产生电流。到目前为止,这类装置所用的电源不是插入的蓄电池,便是高频电磁感应器。第一种方法需要定期做外科手术以更换蓄电池。对于心脏起搏器来说,这意味着每10年都要进行一次外科手术。第二种方法必须保证来自其它电子装置的电磁噪声不会引起麻烦。 Scientists at the Department of Engineering and Technology at Osaka University in Japan use near-infrared radiation to generate current for implanted microcomponents such as pacemakers and artificial inner ear. So far, the power used by such devices is not a rechargeable battery, but a high-frequency electromagnetic sensor. The first method requires regular surgery to replace the battery. For pacemakers, this means that surgery is performed every 10 years. The second method must ensure that electromagnetic noise from other electronic devices does not cause trouble.