A novel method based on RF detection enabling wireless and passive LC sensing
A novel method based on RF detection enabling wireless and passive LC sensing
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一种基于 RF 检测的新颖方法，可实现无线和无源 LC 传感
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Junbo Wang
中科院分区：
文献类型：
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作者：
Qiuxu Wei;Yanshuang Wang;Deyong Chen;Jian Chen;Junbo Wang
本文提出了一种基于射频检测的无线无源LC传感器的方法。采用方波脉冲激励和两个电感反相串联的结构，高效接收激励信号，获得高信噪比。该方法通过基于FPGA的检测电路实现，并通过测试系统进行了验证。实验结果表明，该检测方法适用于谐振频率为120 kHz的胃肠压力传感器的检测。作为概念验证演示，该检测方法能够以脉冲激励的方式检测基于RF检测的无线和无源LC传感器。
This paper presents a method based on RF detection for wireless and passive LC sensors. A square pulse excitation and a structure of two inductors in the series connection with opposite phases are adopted to receive excitation signals efficiently and achieve a high signal-to-noise ratio. The method is implemented by a detection circuit based on FPGA and verified by a test system. Experimental results show that the detection method is suitable for the detection of gastrointestinal pressure sensors with resonant frequencies at ∼120 kHz. As a proof-of-concept demonstration, this detection method is capable of detecting wireless and passive LC sensors based on RF detection in the manner of pulse excitation.