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    • 11. 发明授权
    • Surface acoustic wave sensor and package
    • 表面声波传感器和封装
    • US07730772B2
    • 2010-06-08
    • US11966076
    • 2007-12-28
    • James D. CookBrian J. MarshMohammed A J QasimiDaniel DixonSachin Kumar
    • James D. CookBrian J. MarshMohammed A J QasimiDaniel DixonSachin Kumar
    • B60C23/02G01L9/00
    • B60C23/0449B60C23/0496
    • A wireless and batteryless pressure sensor apparatus comprises of a SAW sensor and an antenna mounted on a printed circuit board. Optionally, and RFID tag in used in combination with the SAW sensor. A sensor antenna and a RFID antenna can be located on the printed circuit board such that the antennas communicate electrically with the sensor and the RFID device. The sensor can be interrogated utilizing a radio frequency, which is used to excite a SAW crystal inside the sensor. The interrogation signal causes the SAW to resonate wherein a resonant frequency changes with the pressure and temperature that is applied to the sensor. An interrogator can receive a return (echo) signal representing a change in SAW sensor properties (e.g., diaphragm change). A printed circuit board can be mounted on a stainless steel port and overpackaged with standard processes for hermetically sealing the sensor, or sensor and RFID device with at least one antenna.
    • 无线和无电池压力传感器装置包括SAW传感器和安装在印刷电路板上的天线。 可选地,RFID标签与SAW传感器结合使用。 传感器天线和RFID天线可以位于印刷电路板上,使得天线与传感器和RFID设备电气通信。 传感器可以利用射频来询问,该射频用于激发传感器内的SAW晶体。 询问信号使SAW谐振,其中谐振频率随施加到传感器的压力和温度而变化。 询问器可以接收表示SAW传感器特性(例如膜片变化)的变化的返回(回波)信号。 印刷电路板可以安装在不锈钢端口上,并采用标准工艺进行封装,以密封传感器,或传感器和RFID设备至少有一个天线。
    • 15. 发明申请
    • WIRELESS AND BATTERYLESS SENSOR
    • 无线和无电池传感器
    • US20090167503A1
    • 2009-07-02
    • US12239363
    • 2008-09-26
    • James D. CookBrian J. MarshMohammed A J QasimiDaniel DixonSachin Kumar
    • James D. CookBrian J. MarshMohammed A J QasimiDaniel DixonSachin Kumar
    • H04Q5/22
    • H04Q9/00G01L9/0025H04Q2209/47H04Q2209/84H04Q2209/88
    • The SAW sensor in a stainless steel button package having a diaphragm and mounted on a threaded port. Package can hermetically seal a sensor and RFID-antenna assemblies from media. Sensor diaphragm is exposable to media. Sensor and RFID antennas communicate electrically with SAW sensor and RFID device, respectively, for sensor measurements and identification. Antennas receive RF interrogation signal from a nearby interrogator/transceiver and send reflected RF signals back to the interrogator unit containing sensor measurement and sensor ID. TRF signal excites a SAW resonator inside the sensor and causes the SAW to resonate wherein resonant frequency changes with pressure and temperature applied to the sensor. Antennas could be printed circuit board antennas, helical antennas, loop antennas, any other commercially available off-the-shelf antennas or a combination of these.
    • SAW传感器采用不锈钢按钮包装,具有隔膜并安装在螺纹端口上。 封装可以从介质密封传感器和RFID天线组件。 传感器隔膜可暴露于介质。 传感器和RFID天线分别与SAW传感器和RFID设备进行通信,用于传感器测量和识别。 天线从附近的询问器/收发器接收RF询问信号,并将反射的RF信号发送回包含传感器测量和传感器ID的询问器单元。 TRF信号激发传感器内的SAW谐振器,并使SAW谐振,其中谐振频率随施加到传感器的压力和温度而变化。 天线可以是印刷电路板天线,螺旋天线,环形天线,任何其他市售的现成天线或这些天线的组合。
    • 16. 发明申请
    • WIRELESS AND BATTERYLESS SENSOR
    • 无线和无电池传感器
    • US20090165546A1
    • 2009-07-02
    • US11966076
    • 2007-12-28
    • James D. CookBrian J. MarshMohammed A.J QasimiDaniel DixonSachin Kumar
    • James D. CookBrian J. MarshMohammed A.J QasimiDaniel DixonSachin Kumar
    • B60C23/04
    • B60C23/0449B60C23/0496
    • A wireless and batteryless pressure sensor apparatus comprises of a SAW sensor and an antenna mounted on a printed circuit board. Optionally, and RFID tag in used in combination with the SAW sensor. A sensor antenna and a RFID antenna can be located on the printed circuit board such that the antennas communicate electrically with the sensor and the RFID device. The sensor can be interrogated utilizing a radio frequency, which is used to excite a SAW crystal inside the sensor. The interrogation signal causes the SAW to resonate wherein a resonant frequency changes with the pressure and temperature that is applied to the sensor. An interrogator can receive a return (echo) signal representing a change in SAW sensor properties (e.g., diaphragm change). A printed circuit board can be mounted on a stainless steel port and overpackaged with standard processes for hermetically sealing the sensor, or sensor and RFID device with at least one antenna.
    • 无线和无电池压力传感器装置包括SAW传感器和安装在印刷电路板上的天线。 可选地,RFID标签与SAW传感器结合使用。 传感器天线和RFID天线可以位于印刷电路板上,使得天线与传感器和RFID设备电气通信。 传感器可以利用射频来询问,该射频用于激发传感器内的SAW晶体。 询问信号使SAW谐振,其中谐振频率随施加到传感器的压力和温度而变化。 询问器可以接收表示SAW传感器特性(例如膜片变化)的变化的返回(回波)信号。 印刷电路板可以安装在不锈钢端口上,并采用标准工艺进行封装,以密封传感器,或传感器和RFID设备至少有一个天线。