柔性全解耦温度-压力双功能传感器设计与性能

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中图分类号：TP212 文献标志码：A

Abstract：To solvetheproblems of structuralcomplexityandfunctional coupling in existing flexible temperature-pressure dual-function sensors，atwo-layer flexible fully decoupled temperature-pressre dual-function sensor was designedand prepared using direct ink writing technology by introducing principle of supercapacitor sensing to pressure sensor and resistive sensingprincipleto temperaturesensor，respectively.Thestructureandmorphological characteristicsof the prepared sensor were analyzed，and its working mechanism was investigated.The temperature and pressure sensing properties were studied through material parameteroptimization，and the decoupling capability was systematically evaluated. Theresults show that introducing porous structuresand optimizing sensitive materials significantly enhance the sensing performance of the sensor. When the mass fraction of graphene is 15% ，the temperature sensitivity is as high as 0.013∘C-1 （20 with a temperature detection range of 20-95∘C . When the mass fraction of 1-butyl- 3- methylimidazolium tetrafluoroborate is 10% ，the pressure sensitivity reaches as high as 22.1kPa-1 ，and the response time is 3O ms. The prepared sensor has decouplingcapabilityandcan simultaneouslycaptureshintemperatureand pulse signalsof the human bodyindiferent motion states.Furthermore，by expanding the sensing unit intoanarray，thesensor can accurately identify the twodimensional pressure and temperature distribution of objects.

Keywords：flexible sensor；principle of supercapacitor sensing；temperature sensor；pressure sensor； health monitoring

能够弯曲、变形的柔性传感器因可以高效、精确获取外界信息而在医疗健康、人工智能、人机交互与机器人皮肤等领域得到广泛应用[1-4]。（剩余14439字）