Nomura Ken-ichi, Kaji Ryosaku, Iwata Shiro, Otao Shinobu, Imawaka Naoto, Yoshino Katsumi, Mitsui Ryosuke, Sato Junya, Takahashi Seiya, Nakajima Shin-ichiro, Ushijima Hirobumi
Flexible Electronics Research Centre, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
Intelligent Systems Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan.
Sci Rep. 2016 Jan 22;6:19947. doi: 10.1038/srep19947.
We describe a flexible capacitance-type sensor that can detect an approaching human without contact, fabricated by developing and applying duplex conductive-ink printing to a film substrate. The results of our calculations show that the difference in size between the top and bottom electrodes of the sensor allows for the spatial extension of the electric field distribution over the electrodes. Hence, such a component functions as a proximity sensor. This thin and light device with a large form factor can be arranged at various places, including curved surfaces and the back of objects such that it is unnoticeable. In our experiment, we attached it to the back of a bed, and found that our device successfully detected the breathing of a subject on the bed without contacting his body. This should contribute to reducing the physical and psychological discomfort among patients during medical checks, or when their condition is being monitored.
我们描述了一种柔性电容式传感器，它可以在不接触的情况下检测接近的人体，该传感器通过在薄膜基板上开发并应用双相导电油墨印刷工艺制造而成。我们的计算结果表明，传感器顶部和底部电极之间的尺寸差异使得电场分布在电极上实现空间扩展。因此，这样一个组件起到了接近传感器的作用。这种外形尺寸大的薄型轻质设备可以布置在包括曲面和物体背面在内的各个地方，从而不引人注意。在我们的实验中，我们将其附着在床的背面，发现我们的设备成功检测到了床上受试者的呼吸，而未接触其身体。这应该有助于减轻患者在体检或病情监测期间的身体和心理不适。
