Terazawa Makie, Karita Momoko, Kumagai Shinya, Sasaki Minoru
Department of Advanced Science and Technology, Toyota Technological Institute, Nagoya 468-8511, Japan.
Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Meijo University, Nagoya 468-8502, Japan.
Micromachines (Basel). 2018 Oct 24;9(11):543. doi: 10.3390/mi9110543.
In this work, a respiratory sensor is studied, measuring the capacitance constructed by attached electrodes on the abdomen. Based on previous findings, that skin thickness changes caused by respiration provides the signal, the fitting condition of the electrode on the skin is stabilized using a 7-μm-thick dressing film. This film can be comfortably worn for a long time, while maintaining the electrode's position on the skin. This stabilized setup enables the detection of, not only respiration, as the cyclic capacitance change, but also of minute body volume changes over the daytime, as a change in the base line indicates the quality of the sensor signal. For this demonstration, the respiration signal is measured during the daily activity of exercise and 6-min walks.
在这项工作中，研究了一种呼吸传感器，它测量由附着在腹部的电极构成的电容。基于先前的研究结果，即呼吸引起的皮肤厚度变化提供了信号，使用7μm厚的敷料膜来稳定电极在皮肤上的贴合状况。这种薄膜可以长时间舒适佩戴，同时保持电极在皮肤上的位置。这种稳定的设置不仅能够检测到作为周期性电容变化的呼吸，还能检测到白天微小的身体体积变化，因为基线的变化表明了传感器信号的质量。在此演示中，在日常运动和6分钟步行活动期间测量呼吸信号。
