Flexible pressure sensor for the detection of human body signals

Abstract

In 2016, flexible sensors only accounted for 8% of the market share, but in 2018, they increased to 27%, and the development trend is still rising. In scientific research, the research on flexible sensors is very hot. It can be seen that flexible sensors are one of the key topics of current research. Researchers have found that this type of sensor has good ductility and portability. However, there is a gap in the field of biological signals for flexible sensors. The flexibility of flexible sensors explores the credibility of the flexible sensor in detecting human pulse signals. It uses different machines, such as a multimeter, and SEM, to verify whether its basic properties, including stability and sensitivity, meet the needs of detecting human signals. The flexible sensor has good stability. Because it is made of RGO, it has higher sensitivity. The converted electrical signal is easier to receive and analyze. Using PDMS as the base material of the flexible sensor can make the flexible sensor have better bendability. This paper introduces the current world of common flexible sensors and different kinds of flexible sensors in different fields of application. The fabrication of a flexible pressure sensor based on RGO is then described in detail. Moreover, the basic properties of flexible pressure sensors are used to verify the possibility of detecting signals for the human body.