Vernier Caliper Haptic Feedback for Pressure Stabilization
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Solution Overview
Problem
Conventional measuring instruments, such as vernier calipers, face issues with measurement pressure stabilization due to variations in pressing force, leading to measurement errors, and the introduction of a separate slider increases instrument size and complexity, compromising usability.
Innovation Solution
A haptic notification mechanism is integrated into the operating part, providing resistance changes to notify the user of predetermined measuring pressures through a tactile sense, eliminating the need for a separate slider and maintaining instrument simplicity and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a second slider is added separately from the main slider to stabilize measuring pressure, then measurement precision is improved, but device complexity and size increase
Solution Approach 1:
The patent combines the haptic notification mechanism directly into the existing operating part of the slider, merging the pressure stabilization function with the measurement mechanism rather than adding a separate second slider. This integration maintains measurement precision while reducing device complexity.
Solution Approach 2:
The operating part is designed to serve multiple functions: it acts as both the measurement slider control and the haptic notification mechanism. By making the operating part universal, the patent eliminates the need for additional components while maintaining the ability to stabilize measuring pressure.
2Measurement precision
If a second slider is added separately from the main slider to stabilize measuring pressure, then measurement precision is improved, but the instrument size increases
Solution Approach 1:
The haptic notification mechanism is merged into the existing operating part structure, eliminating the need for a separate second slider and thereby preventing an increase in instrument size while still achieving measurement precision improvement.
Solution Approach 2:
The haptic notification mechanism is nested within the existing operating part of the slider, allowing the pressure stabilization function to be contained within the original instrument boundaries without increasing overall size.
3Measurement precision
If a separate second slider is used for pressure stabilization, then measurement precision is improved, but ease of operation deteriorates due to detached control
Solution Approach 1:
By merging the haptic notification mechanism into the original operating part, the patent maintains a unified control interface that users are already familiar with, preserving ease of operation while achieving pressure stabilization.
Solution Approach 2:
The operating part provides self-service by incorporating the haptic notification mechanism directly, allowing users to receive feedback through the same interface they use to control measurement, eliminating the need to learn or adapt to a separate control mechanism.
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 haptic notification mechanism stabilizes measuring pressure, improves operability by providing intuitive pressure feedback, and enhances measurement accuracy without increasing instrument size or complexity, allowing for precise pressure selection based on measurement conditions.
Implementation Method 1
a biasing part that generates the resistance, in association with the movement of the movement member, by biasing the movement member
Data Source
AI summary
A vernier caliper is a measuring instrument provided with a main scale and a slider that is slidably provided along a longitudinal direction of the main scale. The slider is provided with an operating part for a user to put his/her finger thereon so as to operate the same. The operating part is provided with a haptic notification means that notifies, through a haptic sense of the finger, that a predetermined measuring pressure has been reached by generating a resistance with respect to the finger by moving in association with the operation of the finger and by causing the resistance to change at a predetermined movement position.