Zhong Junwen, Li Zhaoyang, Takakuwa Masahito, Inoue Daishi, Hashizume Daisuke, Jiang Zhi, Shi Yujun, Ou Lexiang, Nayeem Md Osman Goni, Umezu Shinjiro, Fukuda Kenjiro, Someya Takao
Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
Department of Electromechanical Engineering and Centre for Artificial Intelligence and Robotics, University of Macau, Macau, SAR, 999078, China.
Adv Mater. 2022 Feb;34(6):e2107758. doi: 10.1002/adma.202107758. Epub 2021 Nov 30.
A smart face mask that can conveniently monitor breath information is beneficial for maintaining personal health and preventing the spread of diseases. However, some challenges still need to be addressed before such devices can be of practical use. One key challenge is to develop a pressure sensor that is easily triggered by low pressure and has excellent stability as well as electrical and mechanical properties. In this study, a wireless smart face mask is designed by integrating an ultrathin self-powered pressure sensor and a compact readout circuit with a normal face mask. The pressure sensor is the thinnest (totally compressed thickness of ≈5.5 µm) and lightest (total weight of ≈4.5 mg) electrostatic pressure sensor capable of achieving a peak open-circuit voltage of up to ≈10 V when stimulated by airflow, which endows the sensor with the advantage of readout circuit miniaturization and makes the breath-monitoring system portable and wearable. To demonstrate the capabilities of the smart face mask, it is used to wirelessly measure and analyze the various breath conditions of multiple testers.
一种能够方便地监测呼吸信息的智能口罩，有利于维护个人健康并防止疾病传播。然而，在这类设备能够实际应用之前，仍有一些挑战需要解决。一个关键挑战是开发一种压力传感器，它能够被低压轻松触发，并且具有出色的稳定性以及电学和机械性能。在本研究中，通过将超薄自供电压力传感器和紧凑的读出电路与普通口罩集成，设计出了一种无线智能口罩。该压力传感器是最薄（完全压缩厚度约为5.5微米）且最轻（总重量约为4.5毫克）的静电压力传感器，在气流刺激下能够实现高达约10伏的峰值开路电压，这赋予了传感器读出电路小型化的优势，使得呼吸监测系统便于携带和穿戴。为了展示智能口罩的功能，它被用于无线测量和分析多个测试者的各种呼吸状况。
