Detachable Stylus Displacement Sensing for Accurate Contact
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Solution Overview
Problem
Existing displacement detection devices face challenges in ensuring measurement accuracy as they require the stylus to be brought into contact with a measurement target according to its structure.
Innovation Solution
A displacement detection device is designed with a stylus that is detachably attached to a rotating member, which converts the rotational displacement of the stylus into axial motion of a scale, detected by a sensor. This configuration allows the stylus to be adjusted for different measurement targets, ensuring accurate contact and measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the stylus is fixed to the rotating member, then the device structure is simple, but the stylus cannot be adjusted to match different measurement target structures, reducing measurement accuracy
Solution Approach 1:
The device is divided into separate functional components: the stylus (contactor) is made detachable from the rotating member, allowing independent selection and replacement of styli based on measurement requirements. This segmentation enables customization for different measurement targets without redesigning the entire device.
Solution Approach 2:
The stylus attachment system transitions from a fixed state to a dynamic, changeable state. The detachable mounting mechanism allows the stylus to be easily attached and detached, providing adaptability to various measurement scenarios while maintaining operational simplicity.
2Adaptability or versatility
If the stylus is detachably attached to the rotating member, then the stylus can be adjusted for different measurement targets, but the device complexity increases
Solution Approach 1:
The rotating member is designed with a universal attachment interface that can accommodate multiple types of styli. This universal mounting structure allows a single device to perform multiple measurement functions by simply changing the stylus, enhancing versatility without requiring complex specialized mechanisms for each application.
3Measurement precision
If a fixed stylus configuration is used, then the device is easier to manufacture, but measurement accuracy on varied targets cannot be ensured
Solution Approach 1:
The attachment mechanism incorporates adjustable parameters such as stylus position, angle, and orientation. These parameters can be modified to optimize contact accuracy for different measurement targets, allowing the device to maintain high measurement precision across varied applications while using standardized manufacturing processes.
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 device achieves accurate displacement detection by allowing the stylus to be tailored to the structure of the measurement target, ensuring precise contact and measurement, while also allowing for easy replacement of the stylus, reducing maintenance costs.
Implementation Method 1
a rotating member that supports the stylus and rotates with a fulcrum as a base point when the stylus contacts a measurement target
Data Source
AI summary
A displacement detection device includes a stylus, a rotating member that supports the stylus and rotates with a fulcrum as a base point when the stylus contacts measurement target, a shaft on which a scale is provided, an actuation conversion mechanism that converts the rotation of the rotating member upon contact of the stylus with the measurement target into axial motion of the shaft, and a sensor that detects displacement of the scale. The stylus is detachably attached to the rotating member.