Simple implantable wireless sensor platform to measure pressure and force.
Simple implantable wireless sensor platform to measure pressure and force.
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DOI：
10.1016/j.medengphy.2018.06.006
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发表时间：
2018-09
影响因子：
2.2
通讯作者：
Ledet EH
中科院分区：
文献类型：
--
作者：
Drazan JF;Abdoun OT;Wassick MT;Dahle R;Beardslee L;Marcus GA;Cady NC;Ledet EH
智能植入物有可能为患者提供个性化的护理方案。然而，将智能植入物整合到日常临床实践中受到可用传感技术的尺寸和成本的限制。无源谐振传感器是传统传感技术的一种有吸引力的替代方案，因为它们不需要传感器上的信号调节或遥测，并且比其他传感方法更简单、更小、更便宜、更鲁棒。我们已经开发出一种新颖的简单的被动传感平台，适用于各种应用。传感器仅由两个断开的平行阿基米德螺旋线圈和一个介于其间的固体介电层组成。当受到力或压力时，电路的谐振频率会发生变化，这可以通过无线方式进行测量。我们制作了原型压力传感器和力传感器，并将其性能与预测传感器行为的集总参数模型进行了比较。该传感器对压力或力的动态变化表现出线性响应（R2>0.91），具有优异的灵敏度。实验数据分别在力和压力模型预测值的13.3%和6.2%以内。结果表明，传感器可以适应测量各种被测量通过一个跨度的灵敏度和范围通过适当选择的中间层。
Smart implants have the potential to enable personalized care regimens for patients. However, the integration of smart implants into daily clinical practice is limited by the size and cost of available sensing technology. Passive resonant sensors are an attractive alternative to traditional sensing technologies because they obviate the need for on-sensor signal conditioning or telemetry and are substantially simpler, smaller, less expensive, and more robust than other sensing methods. We have developed a novel simple, passive sensing platform that is adaptable to a variety of applications. Sensors consist of only two disconnected parallel Archimedean spiral coils and an intervening solid dielectric layer. When exposed to force or pressure, the resonant frequency of the circuit shifts which can be measured wirelessly. We fabricated prototype pressure sensors and force sensors and compared their performance to a lumped parameter model which predicts sensor behavior. The sensors exhibited a linear response (R2>0.91) to dynamic changes in pressure or force with excellent sensitivity. Experimental data were within 13.3% and 6.2% of the values predicted by the model for force and pressure respectively. Results demonstrate that the sensors can be adapted to measure various measurands through a span of sensitivities and ranges by appropriate selection of the intervening layer.
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影响因子：
2.4
作者：
Schneider, E;Michel, MC;Perren, SM
通讯作者：
Perren, SM
影响因子：
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作者：
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影响因子：
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