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Resistive-capacitive deformation sensor

A technology of undeformed and deformed analysis, applied in the direction of electric/magnetic solid deformation measurement, instruments, electromagnetic measuring devices, etc., can solve the problems of lack of identification and distinction of different types of deformation, resistance strain gauge lack of distinction between bending deformation and stretching deformation, etc.

Inactive Publication Date: 2018-04-20
META PLATFORMS TECH LLC
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Problems solved by technology

However, strain sensors that measure in isolation individual electrical properties (e.g., changes in resistance or changes in capacitance) resulting from applied deformation lack the ability to discern and differentiate between different types of deformation
As an example, resistance strain gages lack the ability to differentiate between bending and stretching deformations

Method used

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Embodiment Construction

[0136] Figures 1A-1C Each shows a side view of a deformation sensing device with and without applied deformation in accordance with one or more embodiments.

[0137] Figures 1A-1C Each shows a side view of a deformation sensing device 100 (alternatively referred to herein as a deformation sensor 100 ). Figure 1A A side view of deformation sensing device 100 is shown without applied deformation, in accordance with one or more embodiments. like Figure 1A As shown, the deformation sensing device 100 includes a first strain gauge element 110 , a second strain gauge element 120 , and an elastic substrate 130 . The first strain gauge element 110 is formed on the first surface 130 - a of the elastic base 130 . The second strain gauge element is formed on the second surface 130-b of the elastic base 130, the second surface 130-b being opposite to the first surface 130-a.

[0138] The first strain gauge element 110 is configured to output a first signal in response to applied st...

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Abstract

A deformation sensing apparatus comprises an elastic substrate, a first strain-gauge element formed on a first surface of the elastic substrate, and configured to output a first signal in response toa strain applied in a first direction, and a second strain-gauge element formed on a second surface of the elastic substrate opposite to the first surface, and configured to output a second signal inresponse to a strain applied in the same first direction.

Description

Background technique [0001] Strain sensors measure strain caused by applied deformation based on changes in electrical properties (eg, resistance, inductance, or capacitance) of electrical elements (such as resistive strain gauges, capacitive sensors, or inductive sensors) formed therein. However, strain sensors that measure in isolation the individual electrical properties (eg, changes in resistance or changes in capacitance) caused by applied deformation lack the ability to discern and differentiate between different types of deformation. As an example, resistance strain gages lack the ability to distinguish bending deformation from extension deformation. SUMMARY OF THE INVENTION [0002] A deformation sensing device includes an elastic substrate, a first strain gauge element formed on a first surface of the elastic substrate and configured to output a first signal in response to a strain applied in a first direction, and a first strain gauge element formed on the elastic ...

Claims

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Application Information

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IPC IPC(8): G01L15/00G01D21/02G01L1/14G01L1/20
CPCG01B7/18G01B7/22G01L1/142G01L5/165G01D21/02G01L1/14G01L1/20G01L15/00G01L1/22
Inventor 肖恩·凯勒特里斯坦·特鲁特纳大卫·佩雷克布鲁斯·克利里
Owner META PLATFORMS TECH LLC
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