From human skin to Nano-Skin:an experimental study on human skin temperature measurement

摘要

The human state in human-machine systems should be monitored to improve system performance.In monitoring it is preferable to use physiological cues such as skin tem-perature.The sensing capabilities of human skin were analyzed.The sensing system of human skin was modeled,and inspired the design of a Nano-Skin for physiologi-cal measurement in dynamic human-machine contact for human state recognition.The Nano-Skin involves a flexible bottom layer,sensors,special integrated circuit,inter-connection between sensors and special integrated circuit,and flexible top layer.The requirements for the sensors of a Nano-Skin are summarized,and compared with com-mon sensors,MEMS sensors,and nano sensors.A Nano-Skin with deposited platinum was manufactured.The manufacturing process is shown to be feasible and repeatable.The Nano Skin with deposited platinum was used to measure skin temperature.Its per-formance was investigated using experiments.The results verified that the accuracy of the Nano-Skin sensors will not be lower than Pt 10002.Smaller sensors in a Nano-Skin generally have better performance.