Operation Device with Segmented Force Sensor and Mechanical Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In operation devices with force sensors, the handle movement is hindered due to the detection of operating force by strain elements, making it difficult for operators to experience a real feeling of operation.
Innovation Solution
An operation device with an operation section capable of tilting and rotating, mechanically connected to a first member that displaces based on operation, and a second member that stops the first member at a predetermined position, using a force sensor to detect applied forces and moments, providing a real feeling of operation through mechanical feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a force sensor with strain element is used to detect operating force, then force detection capability is improved, but handle movement is hindered making it difficult for operator to obtain real feeling of operation
Solution Approach 1:
The operation device is segmented into separate functional components: the operation handle that moves freely for operator feedback, the force sensor that detects forces, and the control unit that processes signals. This separation allows the handle to move naturally while force detection is performed by the sensor, resolving the contradiction between force detection accuracy and operational feel.
Solution Approach 2:
The control unit acts as an intermediary between the force sensor and the operation handle. It receives force detection signals from the sensor and generates control signals that drive the operation target, while allowing the handle to move independently. This intermediary function enables accurate force detection without restricting handle movement, maintaining operator feedback.
2Ease of operation
If the operation device provides mechanical feedback through movement, then operator's feeling of operation is improved, but force detection accuracy may be compromised
Solution Approach 1:
By separating the force detection function (handled by the force sensor) from the mechanical feedback function (handled by the operation handle movement), the system can provide full mechanical feedback to the operator while the force sensor independently and accurately detects applied forces without being affected by handle movement limitations.
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
Enables operators to experience a real feeling of operation by detecting and providing mechanical feedback corresponding to the operation, enhancing the operational familiarity and effectiveness.
Implementation Method 1
a force sensor which detects, while the second member is stopping the first member, a force or moment which is applied to the second member
Data Source
AI summary
An operation device receives an operation which an operator has carried out in order to move an operation target. The operation device includes an operation section, a first member, a second member, and a force sensor. The operation section is capable of being subjected to one or both of a tilting operation and a rotating operation. The first member is mechanically connected to the operation section and is displaced in accordance with an amount of operation by the operation section. The second member stops the first member at a predetermined stop position. The force sensor detects, while the second member is stopping the first member, a force or moment which is applied to the second member.