第36卷第2期2023年2月传感技术学报CHINESEJOUＲNALOFSENSOＲSANDACTUATOＲSVol.36No.2Feb．2023收稿日期:2022－06－15修改日期:2022－09－01StructuralDesignofWirelessFlexiblePressureSensorBasedonDouble-LayerPlanarSpiralInductorFANTingbo*，MIAOJia(JiangsuInstituteofMedicalDeviceTesting，NanjingJiangsu210037，China)Abstract:State-of-the-artflexiblesensorshavebeenwidelystudiedinelectronicskin，intelligenttextile，flexiblerobot，etc．Mostsensorsneedtobeconnectedtorigidacquisitioncircuits，whichlimitstheflexibility，comfortandlightnessofthedevices．Aflexiblewirelesspassivepressuresensorbasedondouble-layerplanarspiralinductorsisreported．Thesensorcomposesofthreeflexiblelayers，i．e．，double-layerplanarspiralinductor(antennalayer)，ferritefilmwithhighpermeabilityandelasticfabriclayer．Specially，thedouble-layerplanarspiralinductorlayerconsistsoftwoplanarcoilswithoppositerotationdirections，forminganinductance-capacitance(LC)resonatorwithlargeinductanceandcapacitance．Thepressure-dependentresonantfrequencyofthesensoriswirelesslydetectedthroughanelectromagneticallycoupledchargingcoil/receiver．Byinvestigatingthestructuraldesignoffourkindsofdouble-layerspiralinductorantennas，thesensorachievesthesensitivityofashighas0．11MHz/kPaandthedetectiondistanceupto18mm．Thewirelesspassivepressuresensorbasedondouble-layerplanarspiralinductorarchitecturebreaksthelimitationofwiredelectricalconnections，showingagreatapplicationpotentialinthefieldssuchasthenext-generationofhealthcaresystemsandintelligentrobotics．Keywords:flexiblepressuresensor;wirelesscommunication;planarspiralinductor;LCresonatorEEACC:7210;7230;7230Sdoi:10．3969/j．issn．1004－1699．2023．02．006基于双层平面螺旋电感的无线柔性压力传感器结构设计范庭波*，缪佳(江苏省医疗器械检验所，江苏南京210037)摘要:新型柔性传感器在电子皮肤、智能纺织、柔性机器人等领域得到了广泛的研究。目前多数传感器需要连接刚性的采集电路，这限制了设备柔软性、舒适性和轻盈度的提升。提出了一种基于双层平面螺旋电感的柔性无线无源压力传感器。该传感包含三层柔性层:双层平...
