Radio-Frequency Near-Field Sensor Design for Minuscule Internal Motion
Radio-Frequency Near-Field Sensor Design for Minuscule Internal Motion
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DOI：
10.1109/jsen.2022.3224317
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发表时间：
2023-02
影响因子：
4.3
通讯作者：
Jianlin Zhou;Conor C. Taff;David A. Chang van Oordt;Maren N. Vitousek;E. Kan
中科院分区：
文献类型：
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作者：
Jianlin Zhou;Conor C. Taff;David A. Chang van Oordt;Maren N. Vitousek;E. Kan
我们提出了一个射频（RF）近场传感器的结构和小动物内部微小的内部运动的改进设计。的天线的位置和收发器的配置的设计权衡实验探索的流体搅拌器的结构设置。传感器性能在各种天线配置和正交基带采样设置中进行基准测试。一个优化的天线对保持器的设计，然后应用到一个连续的非接触式记录的呼吸和心跳的雏鸟和成年树燕子非侵入性。此外，我们还建立了一个低功耗的便携式一体化射频传感器印刷电路板（PCB）使用的系统参数从以前的实验。对一只13日龄、有意识、能自由活动的树燕雏鸟进行了40 min的呼吸监测实验。
We present the improved design of a radio-frequency (RF) near-field sensor for minuscule internal motion inside structures and small animals. The design tradeoffs of the antenna placement and transceiver configuration are explored experimentally by a structural setup of the fluid stirrer. The sensor performance is benchmarked in various antenna configurations and quadrature baseband sampling settings. An optimized antenna pair holder design is then applied to a continuous touchless recording for the respiration and heartbeat of nestling and adult tree swallows noninvasively. Furthermore, we also built a low-power portable all-in-one RF sensor printed circuit board (PCB) using the system parameters from previous experiments. A 40-min experiment on a conscious and free-to-move 13-day-old nestling tree swallow for respiration monitoring was successfully conducted.