Grasping Apparatus with Pressure Sensing for Adaptive Force Control
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Solution Overview
Problem
Existing grasping apparatuses lack the ability to adjust grasping force in response to different objects, leading to inefficiencies in object manipulation.
Innovation Solution
A grasping apparatus equipped with pressure sensing mechanisms, comprising parallel metal films and an elastic portion, which detects grasping force and adjusts the distance between the films to modulate capacitance and generate control signals for adjusting the grasping force, utilizing a comparison module and controlling module to adjust the grasping portions accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed grasping force is applied, then the structure is simple, but the adaptability to different objects is poor
Solution Approach 1:
The grasping force is made dynamically adjustable through a control module that receives detection signals from pressure sensing mechanisms and adjusts the grasping portions accordingly. This allows the system to adapt to different objects by changing the grasping force in real-time, transforming a static system into a dynamic one that can respond to varying conditions.
Solution Approach 2:
Pressure sensing mechanisms are integrated into the grasping portions to detect the force being applied. This detection signal is fed back to the control module, which then adjusts the grasping force to maintain optimal contact. This closed-loop feedback system enables automatic adaptation to different objects without requiring complex manual adjustment mechanisms.
2Measurement precision
If pressure sensing mechanisms are added to detect grasping force, then the sensitivity and control capability are improved, but the device complexity increases
Solution Approach 1:
The pressure sensing mechanisms serve multiple functions: they detect grasping force, provide feedback signals for control, and enable automatic adjustment of the grasping portions. By making these sensing elements multi-functional, the patent reduces the need for separate components for each function, thereby minimizing the increase in overall device complexity while achieving precise measurement capability.
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
Enhances the sensitivity of the grasping apparatus by allowing real-time adjustment of grasping force based on detected forces, improving object manipulation capabilities.
Implementation Method 1
an elastic portion between the metal films, the elastic portion being deformable
Implementation Method 2
modulate a capacitance of the pressure sensing mechanism
Data Source
AI summary
A grasping apparatus for grasping an object includes at least two grasping portions and at least two pressure sensing mechanisms disposed in the corresponding grasping portions. The pressure sensing mechanism detects a grasping force between the grasping portions while grasping the object. The pressure sensing mechanism includes two parallel metal films and an elastic portion therebetween. The elastic portion deforms to decrease the distance between the metal films for sensing the grasping force.