Sensing Apparatus Convex Structures Elastic Component
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Solution Overview
Problem
Sensing devices often suffer from low sensitivity due to inadequate volume changes in their sensing cavities, leading to reduced performance and reliability.
Innovation Solution
Incorporating convex structures on the elastic component facing the sensing cavity, which reduce the volume of the cavity and enhance sensitivity by allowing for greater volume changes during operation, while minimizing adhesion between the elastic component and the cavity walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensing cavity volume is increased to improve sensitivity, then the sensitivity improves, but the volume change during operation is reduced
Solution Approach 1:
The elastic component is segmented with convex structures that create multiple localized sensing regions. Each convex structure acts as an independent elastic element that can deform individually, amplifying the overall volume change of the sensing cavity while maintaining a relatively small base cavity volume for high sensitivity.
Solution Approach 2:
The convex structures extend into the sensing cavity volume, creating a three-dimensional elastic network. This dimensional transformation allows the elastic component to achieve greater volumetric displacement within a compact cavity, simultaneously improving sensitivity and maintaining large volume change capability.
2Stability of the object's composition
If the contact area between elastic component and cavity wall is increased to improve stability, then the stability improves, but the adhesion between components increases
Solution Approach 1:
The convex structures segment the contact interface between the elastic component and the cavity wall. Instead of a continuous large-area contact, the interaction is distributed across multiple discrete convex points, reducing total adhesion while maintaining positional stability through the array of contact points.
Solution Approach 2:
The convex structures feature curved surfaces that reduce the actual contact area with the cavity wall compared to flat surfaces. The curvature concentrates contact at specific points or small regions, minimizing adhesion while the distributed arrangement of convex structures maintains overall stability.
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 convex structures improve sensitivity and stability by facilitating increased volume changes and reducing contact area, thereby enhancing the overall performance and reliability of the sensing device.
Implementation Method 1
the at least one convex structure is configured to abut against a second sidewall of the sensing cavity, so that when the sensing device works, the elastic component may drive the at least one convex structure to vibrate and be squeezed by the second sidewall of the sensing cavity, resulting in elastic deformation
Implementation Method 2
minimizing adhesion between the elastic component and the cavity walls
Implementation Method 3
a mass unit arranged on a surface of the other side of the elastic component, the mass unit and the elastic component vibrating together in response to the external signal
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The embodiment of the present disclosure discloses a sensing device, comprising: an elastic component; a sensing cavity, wherein the elastic component forms a first sidewall of the sensing cavity; and an energy conversion component configured to obtain a sensing signal and convert the sensing signal into an electrical signal, the energy conversion component being in communication with the sensing cavity, and the sensing signal relating to a change of a volume of the sensing cavity, wherein at least one convex structure is arranged on one side of the elastic component facing toward the sensing cavity, the elastic component drives the at least one convex structure to move in response to an external signal, and the movement of the at least one convex structure changing the volume of the sensing cavity.