Flexible Pressure Sensor With Pre-Formed Curvature for Glove Accuracy
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Solution Overview
Problem
Existing pressure sensors attached to gloves suffer from incorrect responses due to bending stress and curvature bias loads, which impair detection sensitivity.
Innovation Solution
A pressure sensor device with a flexible substrate, comb-teeth shape electrodes, and a pressure-sensitive material that maintains a curvature in a static state, mitigating curvature bias loads and ensuring accurate detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the piezoelectric sensor is attached to a glove, then the sensor can detect pressure in manual work, but bending stress is applied to the pressure-sensitive material causing incorrect sensor response
Solution Approach 1:
The pressure-sensitive material is pre-formed with a curvature matching the glove's finger shape before attachment. This preliminary curvature configuration ensures that when the sensor is attached to the curved finger surface, no additional bending stress is induced, allowing accurate pressure detection without false readings from curvature bias loads.
2Adaptability or versatility
If the flexible substrate is affixed to a curved surface, then the sensor can be positioned on curved surfaces, but curvature bias load is generated causing detection sensitivity to be impaired
Solution Approach 1:
The invention changes the geometric parameter of the pressure-sensitive material by pre-forming it with a specific curvature radius that matches the target curved surface. This parameter adjustment ensures that when the sensor is positioned on the curved surface, the material experiences no additional bending stress, thereby maintaining high detection sensitivity while adapting to curved geometries.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances detection sensitivity by minimizing false readings and improving the accuracy of pressure sensing on curved surfaces, particularly in manual work environments.
Implementation Method 1
a pressure-sensitive material that is provided on the comb-teeth shape electrode, varies in a resistance value thereof depending on an amount of a load
Data Source
AI summary
A pressure sensor device, a method for manufacturing the pressure sensor device, and a work management system mitigating a degree of a false detection is presented. The pressure sensor device detecting pressure includes a flexible substrate base material having flexibility; a comb-teeth shape electrode having an exposed metal surface formed in a predetermined area on the flexible substrate base material; and a pressure-sensitive material that is provided on the comb-teeth shape electrode, varies in a resistance value depending on an amount of a load, and has a curvature in a static state.