Torque Sensor With Discrete Elastic Sections for Axis Isolation
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Solution Overview
Problem
Existing sensors for detecting mechanical quantities applied to structures face challenges in accurately measuring torques due to interference from other-axis forces and complexities in manufacturing, leading to decreased detection accuracy and increased production costs.
Innovation Solution
The sensor is designed with a structure having at least four elastic sections discretely disposed in an imaginary plane, incorporating a metal component with reinforcement components on either side, and utilizing an encoder system to detect deformations and output signals proportional to relative displacements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a torque sensor uses a structure with elastic sections to detect torque, then detection accuracy is improved, but the structure becomes more complex and manufacturing becomes more difficult
Solution Approach 1:
The structure is divided into multiple discrete elastic sections (at least four) arranged in an imaginary plane, each independently detecting deformation. This segmentation allows the sensor to measure torque through multiple measurement points while maintaining a modular structure that is easier to manufacture than a monolithic complex structure.
Solution Approach 2:
Reinforcement components are strategically placed at specific locations (overlapping certain elastic sections) to enhance local rigidity where needed. This localized reinforcement approach improves overall structural performance without requiring complex reinforcement throughout the entire structure, thus balancing detection accuracy with manufacturing simplicity.
2Manufacturing precision
If traditional casting or machining methods are used to manufacture metal components, then manufacturing precision can be achieved, but productivity decreases and production costs increase
Solution Approach 1:
Traditional mechanical manufacturing methods (casting, machining) are replaced with a bending process for fabricating metal components. This substitution dramatically improves productivity as bending is a faster, more efficient process, while still achieving the required manufacturing precision for the elastic sections and reinforcement components.
Solution Approach 2:
The manufacturing approach changes from subtractive (machining) or formative (casting) processes to a bending process. This parameter change in the manufacturing method enables higher productivity and lower costs while maintaining the structural integrity and precision requirements of the metal components.
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
This configuration enhances the detection accuracy of torques by reducing interference from other-axis forces and improves productivity through efficient manufacturing processes, such as bending metal components instead of casting or machining.
Implementation Method 1
a structure (5), and a detector (8) arranged to detect a deformation of the structure (5)
Data Source
AI summary
A sensor includes a structure and a detector. The detector is arranged to detect a deformation of the structure. The structure has at least four elastic sections. The at least four elastic sections are discretely disposed in an imaginary plane.