公开(公告)号：US09459171B2

公开(公告)日：2016-10-04

申请号：US14923956

申请日：2015-10-27

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Tingrui Pan ,  Baoqing Nie ,  Siyuan Xing ,  James D. Brandt

IPC: G01L9/00

CPC classification number: G01L9/0072 ,  G01L9/0075 ,  G01L9/0092 ,  G01L9/0095

Abstract: 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.

公开(公告)号：US20140174189A1

公开(公告)日：2014-06-26

申请号：US14106760

申请日：2013-12-14

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Tingrui Pan ,  Baoqing Nie ,  Siyuan Xing ,  James D. Brandt

IPC: G01L13/06

CPC classification number: G01L9/0072 ,  G01L9/0075 ,  G01L9/0092 ,  G01L9/0095

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20170108392A1

公开(公告)日：2017-04-20

申请号：US15272806

申请日：2016-09-22

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Tingrui Pan ,  Baoqing Nie ,  Siyuan Xing ,  James D. Brandt

IPC: G01L9/00

CPC classification number: G01L9/0072 ,  G01L9/0075 ,  G01L9/0092 ,  G01L9/0095

Abstract: 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.

公开(公告)号：US20160116357A1

公开(公告)日：2016-04-28

申请号：US14923956

申请日：2015-10-27

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Tingrui Pan ,  Baoqing Nie ,  Siyuan Xing ,  James D. Brandt

IPC: G01L9/00

CPC classification number: G01L9/0072 ,  G01L9/0075 ,  G01L9/0092 ,  G01L9/0095

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09739679B2

公开(公告)日：2017-08-22

申请号：US15272806

申请日：2016-09-22

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Tingrui Pan ,  Baoqing Nie ,  Siyuan Xing ,  James D. Brandt

IPC: G01L9/00

CPC classification number: G01L9/0072 ,  G01L9/0075 ,  G01L9/0092 ,  G01L9/0095

Abstract: 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.

公开(公告)号：US20160365198A1

公开(公告)日：2016-12-15

申请号：US15178092

申请日：2016-06-09

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Tingrui Pan ,  Baoqing Nie ,  Ruya Li ,  James D. Brandt

IPC: H01G11/08 ,  A61B5/021 ,  G01L1/14

CPC classification number: H01G11/08 ,  A61B5/021 ,  A61B2562/0217 ,  A61B2562/0247 ,  G01L1/02 ,  G01L1/142 ,  H01G5/0132 ,  H01G5/38

Abstract: A liquid column-based normal/shear pressure/force sensing device having an elastic electrolyte-electrode contact with large interfacial capacitance to achieve high sensitivity and resolution with flexible and transparent constructs.

Abstract translation: 具有弹性电解质 - 电极接触的基于液柱的普通/剪切压力/力感测装置具有大的界面电容，以通过柔性和透明结构实现高灵敏度和分辨率。

公开(公告)号：US09170166B2

公开(公告)日：2015-10-27

申请号：US14106760

申请日：2013-12-14

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Tingrui Pan ,  Baoqing Nie ,  Siyuan Xing ,  James D. Brandt

IPC: G01L9/12 ,  G01L9/00

CPC classification number: G01L9/0072 ,  G01L9/0075 ,  G01L9/0092 ,  G01L9/0095

Abstract: 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.

Abstract translation: 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。