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1. 发明申请

WO2009103042A3 PASSIVE WIRELESS ANTENNA SENSOR FOR STRAIN, TEMPERATURE, CRACK AND FATIGUE MEASUREMENT 审中-公开
标题翻译：被动无线天线传感器用于应变，温度，裂纹和疲劳测量
公开(公告)号：WO2009103042A3
公开(公告)日：2009-11-26
申请号：PCT/US2009034175
申请日：2009-02-15
申请人： UNIV TEXAS , HUANG HAIYING , CHIAO JUNG-CHIH , CARTER RONALD L , TATA UDAY SHANKAR
发明人： HUANG HAIYING , CHIAO JUNG-CHIH , CARTER RONALD L , TATA UDAY SHANKAR
IPC分类号： G01B7/16 , G01B21/32 , G08C17/02
CPC分类号： G01B7/16 , G01B15/06 , H01Q1/2225 , H01Q21/065
摘要： An apparatus and method is provided for monitoring a condition of a structure using a passive wireless antenna sensor having a known resonant frequency when mounted on the structure. A series of radio frequency signals are transmitted with sweeping frequencies around the known resonant frequency to the passive wireless antenna sensor. The passive wireless antenna sensor includes a dielectric substrate disposed between an antenna pattern and a ground plane such that a change in the condition of the structure will cause a change in one or more characteristics of the passive wireless sensor. A signal is received from the passive wireless antenna sensor and a resonant frequency of the passive wireless antenna sensor is determined based on the received signal. The determined resonant frequency is then compared to the known resonant frequency, whereby a change in the resonant frequency indicates a change in the condition of the structure.
摘要翻译：提供了一种装置和方法，用于当安装在结构上时，使用具有已知共振频率的无源无线天线传感器监测结构的状况。将一系列射频信号以围绕已知谐振频率的扫频以无源无线天线传感器传输。无源无线天线传感器包括设置在天线图案和接地平面之间的电介质基板，使得结构状态的变化将导致无源无线传感器的一个或多个特性的改变。从无源无线天线传感器接收信号，并且基于接收到的信号确定无源无线天线传感器的谐振频率。然后将确定的谐振频率与已知的谐振频率进行比较，由此谐振频率的变化表示结构状况的变化。

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