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公开(公告)号：US10481021B2
公开(公告)日：2019-11-19
申请号：US15990564
申请日：2018-05-25
发明人： Tingrui Pan , Ruya Li , Benjamin Arthur Bazor
IPC分类号： G01L1/00 , G01L1/14 , D03D15/00 , B32B5/02 , A41D25/00 , A41D1/00 , A41D19/00 , A41D27/20 , A61B5/00 , D03D1/00 , A41D13/12 , A43B3/00 , A43B7/14 , A43B13/02 , A43B23/02
摘要： A fabric-based pressure sensor assembly utilizing in ionic material and conductive material is disclosed. The sensing device can be applied in several various wearable health and biomedical applications on complex body topologies. As an alternative to conventional flexible sensors, the fabric-based sensor assembly yields high device sensitivity and desirable parameters for pressure sensing in a wearable construct. The sensor assembly enables rapid mechanical responses (in the milliseconds range) for high-frequency biomechanical signals, e.g., blood pressure pulses and body movements. The fabrication process for the device is low-cost highly compatible with existing industrial manufacturing processes.
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公开(公告)号：US20170108392A1
公开(公告)日：2017-04-20
申请号：US15272806
申请日：2016-09-22
发明人： Tingrui Pan , Baoqing Nie , Siyuan Xing , James D. Brandt
IPC分类号： G01L9/00
CPC分类号： G01L9/0072 , G01L9/0075 , G01L9/0092 , G01L9/0095
摘要： A pressure sensing apparatus which utilizes an electrolytic droplet retained between a first and second sensing electrode within a housing. Contact between the electrolyte droplet and the electrodes form electric double layers (EDL) having interfacial EDL capacitance proportional to interface contact area which varies in response to mechanical pressure applied to deform exterior portions of the housing. The electrolyte contains a sufficient percentage of glycerol to prevent evaporative effects. Preferably, the sensing electrodes are modified with depressions, hydrophilic and/or hydrophobic portions to increase central anchoring of the electrolyte droplet within the housing. The inventive pressure sensor provides high sensitivity and resolution which is beneficial to numerous applications, and is particularly well-suited for medical sensing applications.
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公开(公告)号：US20170059434A1
公开(公告)日：2017-03-02
申请号：US15249453
申请日：2016-08-28
发明人： Ruya Li , Baoqing Nie , Zijie Zhu , Tingrui Pan
IPC分类号： G01L9/00
CPC分类号： G01L9/0072 , G01L9/0044
摘要： Thin-film pressure sensors are disclosed herein. Such sensors include one or more electrodes in contact with a sensing material. As the sensor deforms the capacitance of the sensor varies and is measurable either between two electrodes of the sensor, or between the one electrode of the sensor and an electrode formed by the surface to which the sensor is applied, such as skin. The sensing material can be an ionic material such as an ionic composite including an ionic liquid.
摘要翻译： 本文公开了薄膜压力传感器。 这种传感器包括与感测材料接触的一个或多个电极。 当传感器变形时，传感器的电容变化，并且可以在传感器的两个电极之间或传感器的一个电极与由传感器施加的表面（例如皮肤）形成的电极之间进行测量。 感测材料可以是离子材料，例如包括离子液体的离子复合材料。
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公开(公告)号：US20160116357A1
公开(公告)日：2016-04-28
申请号：US14923956
申请日：2015-10-27
发明人： Tingrui Pan , Baoqing Nie , Siyuan Xing , James D. Brandt
IPC分类号： G01L9/00
CPC分类号： G01L9/0072 , G01L9/0075 , G01L9/0092 , G01L9/0095
摘要： A pressure sensing apparatus which utilizes an electrolytic droplet retained between a first and second sensing electrode within a housing. Contact between the electrolyte droplet and the electrodes form electric double layers (EDL) having interfacial EDL capacitance proportional to interface contact area which varies in response to mechanical pressure applied to deform exterior portions of the housing. The electrolyte contains a sufficient percentage of glycerol to prevent evaporative effects. Preferably, the sensing electrodes are modified with depressions, hydrophilic and/or hydrophobic portions to increase central anchoring of the electrolyte droplet within the housing. The inventive pressure sensor provides high sensitivity and resolution which is beneficial to numerous applications, and is particularly well-suited for medical sensing applications.
摘要翻译： 一种压力感测装置，其利用保持在壳体内的第一和第二感测电极之间的电解液滴。 电解质液滴和电极之间的接触形成具有与界面接触面积成比例的界面EDL电容的电双层（EDL），其响应于施加到壳体的外部部分的机械压力而变化。 电解液含有足够的甘油百分比以防止蒸发效应。 优选地，感测电极用凹陷，亲水和/或疏水部分改性以增加电解质液滴在壳体内的中心锚定。 本发明的压力传感器提供高灵敏度和分辨率，这对许多应用是有益的，并且特别适合于医学感测应用。
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公开(公告)号：US20190162614A1
公开(公告)日：2019-05-30
申请号：US16188178
申请日：2018-11-12
发明人： Ruya Li , Baoqing Nie , Zijie Zhu , Tingrui Pan
IPC分类号： G01L9/00
摘要： Thin-film pressure sensors are disclosed herein. Such sensors include one or more electrodes in contact with a sensing material. As the sensor deforms the capacitance of the sensor varies and is measurable either between two electrodes of the sensor, or between the one electrode of the sensor and an electrode formed by the surface to which the sensor is applied, such as skin. The sensing material can be an ionic material such as an ionic composite including an ionic liquid.
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公开(公告)号：US09459171B2
公开(公告)日：2016-10-04
申请号：US14923956
申请日：2015-10-27
发明人： Tingrui Pan , Baoqing Nie , Siyuan Xing , James D. Brandt
IPC分类号： G01L9/00
CPC分类号： G01L9/0072 , G01L9/0075 , G01L9/0092 , G01L9/0095
摘要： A pressure sensing apparatus which utilizes an electrolytic droplet retained between a first and second sensing electrode within a housing. Contact between the electrolyte droplet and the electrodes form electric double layers (EDL) having interfacial EDL capacitance proportional to interface contact area which varies in response to mechanical pressure applied to deform exterior portions of the housing. The electrolyte contains a sufficient percentage of glycerol to prevent evaporative effects. Preferably, the sensing electrodes are modified with depressions, hydrophilic and/or hydrophobic portions to increase central anchoring of the electrolyte droplet within the housing. The inventive pressure sensor provides high sensitivity and resolution which is beneficial to numerous applications, and is particularly well-suited for medical sensing applications.
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公开(公告)号：US20140288515A1
公开(公告)日：2014-09-25
申请号：US14203977
申请日：2014-03-11
发明人： Tingrui Pan , Siyuan Xing
IPC分类号： A61F13/538 , A61B5/145 , A61B10/00
CPC分类号： A61B10/0064 , Y10T137/0318
摘要： This invention includes the implementation of several unconventional droplet manipulations on a superhydrophobic-patterned surface microfluidic platform, which may be applied to automated biological analyses and point-of-care diagnostic applications.
摘要翻译： 本发明包括在超疏水图案表面微流体平台上实施几种非常规液滴操作，其可应用于自动化生物分析和点护理诊断应用。
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公开(公告)号：US10928905B2
公开(公告)日：2021-02-23
申请号：US16155839
申请日：2018-10-09
发明人： Benjamin Arthur Bazor , Zijie Zhu , Tingrui Pan
IPC分类号： G06F3/01 , G06F17/00 , G06K9/00 , G06F3/0346
摘要： Pressure-sensor based arrays are integrated into a control device that detects the position, motion, or movement of a one or more body parts of a user to recognize and translate the motion into a unique user-motion profile. The user motion profile may be independently analyzed or recognized as a discrete motion or gesture and used as input or commands for the control device itself or as a signal or set of signals that yields an output signal to a companion device. The pressure sensors can be attached to any body part of a user, such as the user's wrist or ankle. Motion or position, or changes therein, of the user generates an output signal that may be used to control a companion device. The source of the detectable signal is the pressure-based sensor array that yields a pressure data profile that is translated into an output signal to control the companion device.
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公开(公告)号：US10900818B2
公开(公告)日：2021-01-26
申请号：US16538307
申请日：2019-08-12
发明人： Tingrui Pan , Yahui Yang , Zecong Fang , Siyuan Xing , Ruya Li , Hong Liu
摘要： A fabric based digital droplet flowmetry (DDF) method and platform are provided utilizing a fluid collection network, a microfluidic junction for droplet formation and removal, and digital counting and measurement circuitry. The fluidic junction has a droplet emitter, such as a nozzle, and droplet receiver separated by a gap. The measurement circuitry detects the transient formation of a liquid bridge (the closed-circuit state) and the breakup of the bridge (the open-circuit state) as an electrical switching event. The duration of the bridge formation only lasts for a few milliseconds. The platform produces consistent droplet volume over varying flow rates and droplet size is controlled by the selection of structural parameters such as nozzle dimensions, channel geometries, surface wettability, and inlet/outlet pressures.
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公开(公告)号：US20200041319A1
公开(公告)日：2020-02-06
申请号：US16538307
申请日：2019-08-12
发明人： Tingrui Pan , Yahui Yang , Zecong Fang , Siyuan Xing , Ruya Li , Hong Liu
摘要： A fabric based digital droplet flowmetry (DDF) method and platform are provided utilizing a fluid collection network, a microfluidic junction for droplet formation and removal, and digital counting and measurement circuitry. The fluidic junction has a droplet emitter, such as a nozzle, and droplet receiver separated by a gap. The measurement circuitry detects the transient formation of a liquid bridge (the closed-circuit state) and the breakup of the bridge (the open-circuit state) as an electrical switching event. The duration of the bridge formation only lasts for a few milliseconds. The platform produces consistent droplet volume over varying flow rates and droplet size is controlled by the selection of structural parameters such as nozzle dimensions, channel geometries, surface wettability, and inlet/outlet pressures.
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