欢迎来到天天文库
浏览记录
ID:51451419
大小:700.54 KB
页数:5页
时间:2020-03-25
《基于柔性阵列传感器的脉象检测系统的设计.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第25卷第6期传感技术学报VolI25No.62012年6月CHINESEJOURNALOFSENSORSANDACTUATORSJun.2012TheDesignofMulti·ChannelPulseDetectionSystemBasedonFlexibleArraySensorWANGXueMin,YANGCheng,LUXiaoZuo,LUOMing,ZHOUPeng(1.CollegeofPrecisionInstrumentand@to—ElectronicsEngineering,T
2、ianjinUniversity,Tianfin300072,China;2.CollegeofTraditionalChineseMedicine,TianUnivemityofTraditionalChineseMedicine,Tianjin300193,China)Abstract:Mostofthecurrentpulsecollectiondeviceshavesomedisadvantages,suchaslimitedtocollectpulsesignals,poorregulat
3、oryofthedetectionpressure,andunabletostimulatethepositionofdoctors’fingersduringpulse—feeling.Moreover,theyareonlycapableofrecordingpulsecurvesandpreliminaryanalyzingtwo—dimensionalpulsesignals,buthavenothingtodowiththree—dimensionalpulseinformation.To
4、solvethisproblem,anewpulsesignaldetectionsystembasedonflexiblearraysensorwasintroduced.Aspecialkindarepulsetransducerwasmadebyusingsiliconetoconve~pulseenergy.Withapressurecontrollingsystem,itispossibletoadjustthepressurean-tomaticallySOastogettheoptim
5、aldetectionpressureinlightofdifferentsituations.Acircuitsystemwasbuiltuptocompletethepulsedetection,extractionandpreprocessing.TheUSB一7660wasusedtofulfillthefunctionofA/Dacquisitionsystemandthenmulti-channelpulsesignalscanbedetected,storedanddisplayedi
6、naPCdevice.Ex—perimentsshowthatthissystemcanacquireseven--channeltwo--dimensionalpulsesignalseffectivelyandcalculatethepulsewidthofthesubjectsclearly,itcanalsoreconstructthree—dimensionaltopographicmapsrelatedtotwo—di—mensionalpulsesignalwhichisdiffere
7、nttopreviousstudies.Keywords:Pulsology;arraysensor;pulsewidth;three·dimensionaltopographicmapEEACC:7230G;7250E;7510Ddoi:10.3969/j.issn.1004-1699.2012.06.003基于柔性阵列传感器的脉象检测系统的设计冰王学民,杨成,陆小佐,罗鸣,周鹏(1.天津大学精密仪器与光电子工程学院,天津300072;2.天津中医药大学中医工程学院,天津300193)摘要:当前的
8、脉象仪大部分采集手段单一,取脉压力的调节性差,无法模拟医生的布指方式,而且只能实现脉搏图的描记及分析,无法给出脉象的三维信息。针对这一问题研制了基于柔性阵列传感器的脉象检测系统,用硅胶制作了专门的脉搏换能器;设计了压力控制系统,实现压力自动调节,完成了对最佳取脉压力下脉象的采集;搭建了信号处理电路,实现了对脉象信号的提取和预处理:以USB一7660为核心构建了A/D采集系统,实现了对多路脉象信号的显示、存储。实验表明,该系统不仅可以有效采集到受试者的七路二维脉图,而且
此文档下载收益归作者所有