Strain sensors and methods of manufacture and use
First Claim
1. A strain sensor comprising:
- a flexible substrate;
a sheet which comprises a carbon nanotube network affixed to the flexible substrate, the sheet having a top side and an opposing second side; and
two or more microelectrodes printed at spaced locations directly onto;
(i) the top side of the sheet, such that the sheet is arranged between the printed microelectrodes and the flexible substrate;
or(ii) a side of the flexible substrate facing the second side of the sheet, such that the printed microelectrodes are between the second side of the sheet and the flexible substrate.
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Accused Products
Abstract
Strain sensors are provided that include a flexible substrate, a sheet affixed to the flexible substrate, and two or more microelectrodes printed at spaced locations onto either the sheet or the flexible substrate, wherein the sheet includes a carbon nanotube network, the sheet having a top side and an opposing second side. The two or more microelectrodes are printed at spaced locations onto the top side of the sheet or onto a side of the flexible substrate facing the second side of the sheet. Methods are provided for fabricating a strain sensor wherein the sheet is arranged between the printed microelectrodes and the flexible substrate or wherein the second side of the sheet is arranged atop or across the printed microelectrodes. Methods are also provided for measuring strain in a structure via the strain sensors affixed or integrated therein.
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Citations
22 Claims
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1. A strain sensor comprising:
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a flexible substrate; a sheet which comprises a carbon nanotube network affixed to the flexible substrate, the sheet having a top side and an opposing second side; and two or more microelectrodes printed at spaced locations directly onto; (i) the top side of the sheet, such that the sheet is arranged between the printed microelectrodes and the flexible substrate;
or(ii) a side of the flexible substrate facing the second side of the sheet, such that the printed microelectrodes are between the second side of the sheet and the flexible substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for making a strain sensor, the method comprising:
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bonding a sheet comprising a carbon nanotube network to a flexible substrate, the sheet having a top side and an opposing second side; and printing two or more microelectrodes at spaced locations directly onto the top side of the sheet, wherein the sheet is arranged between the printed microelectrodes and the flexible substrate. - View Dependent Claims (18, 19)
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20. A method for making a strain sensor, the method comprising:
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printing two or more microelectrodes at spaced locations directly onto a flexible substrate; and bonding a sheet comprising a carbon nanotube network to the flexible substrate, the sheet having a top side and an opposing second side, wherein the second side of the sheet is arranged atop or across the printed microelectrodes. - View Dependent Claims (21, 22)
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Specification