Design and preparation of flexible temperature-pressure sensor
In order to resolve the problem that most current flexible sensors have a single function and can only measure a single physical signal,such as pressure,temperature or strain. A flexible matrix of polydimethylsiloxane (PDMS)with microchannel structure is prepared by the template method. Ionic liquids and liquid metals are filled into the microchannels as conductive media and encapsulated to obtain flexible sensors with temperature and pressure sensing capabilities. The response characteristics of the sensor to temperature and pressure and the effect of layered structure on reducing the crosstalk of temperature and pressure signals are studied and analyzed. The experimental results show that the flexible composite sensor has good linearity and stability to temperature and pressure and can avoid crosstalk between pressure and temperature signals. The experiments show that the sensor can detect the driver's grip force and temperature signal by the driver's off-hand test and can identify abnormal contact. The sensor can measure both temperature and pressure,and is expected to be used in the field of flexible skin and flexible robotics to enhance the sensing ability to environment.
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维普
