Fiber Sensor Identification Unit for Bending Detection
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Solution Overview
Problem
Existing fiber sensors face challenges in accurately detecting the bending and twisting of flexible subjects due to the need for precise arrangement of light characteristics conversion portions, which is difficult without clear identification of their installation position and posture.
Innovation Solution
A fiber sensor with an optical fiber having a unique identification unit on its outer surface, allowing for easy recognition and accurate installation of light characteristics conversion portions, enabling precise detection of bending and twisting by varying light loss based on the direction and degree of bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light characteristics conversion portions are arranged at predetermined positions on the optical fiber, then bending and twisting detection accuracy is improved, but the complexity of arranging and identifying installation positions increases
Solution Approach 1:
The patent uses a mark (copy/indicator) on the optical fiber that replicates or indicates the position and orientation information of the light characteristics conversion portions. This mark serves as a simplified representation that allows installers to identify the correct installation position and posture without needing to directly locate or measure the actual conversion portions, thereby reducing arrangement complexity while maintaining detection accuracy.
Solution Approach 2:
The mark acts as an intermediary element between the light characteristics conversion portions and the installer. Instead of directly interacting with the conversion portions to determine their position and orientation, the installer uses the mark as a mediator to infer this information, simplifying the installation process while ensuring accurate positioning of the conversion portions for optimal bending detection.
2Adaptability or versatility
If light characteristics conversion portions are used to detect bending direction and degree, then detection capability is improved, but the difficulty of accurately identifying installation position and posture increases
Solution Approach 1:
The mark on the optical fiber creates a visual copy or representation of the installation position and posture information. This mark enables installers to easily identify how the light characteristics conversion portions should be positioned and oriented without needing to directly measure or calculate the correct installation parameters, thus reducing identification difficulty while preserving full detection capability.
Solution Approach 2:
The mark may utilize visual characteristics such as color, shape, or pattern changes to indicate installation position and posture. By encoding orientation and position information in the visual properties of the mark, the system makes it easier to identify correct installation configuration without adding complexity to the detection mechanism itself, thereby maintaining adaptability while reducing measurement difficulty.
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 unique identification unit facilitates the precise installation of light characteristics conversion portions, enhancing the accuracy of bending and twisting detection by clearly indicating the installation position and posture, thereby improving the overall detection efficiency.
Implementation Method 1
an optical fiber having flexibility that guides light emitted from the light source
Implementation Method 2
The light characteristics conversion portions have the function of causing a light loss depending on the direction and the degree of bending and twisting of a subject
Data Source
AI summary
A fiber sensor includes a light source, and an optical fiber having flexibility to guide light emitted from the light source. The optical fiber has at least one light characteristics conversion portion. The fiber sensor also includes a light-receiving unit to receive the light guided by the optical fiber, and an identification unit having a unique shape on an outer peripheral surface of the optical fiber as compared with a round shape. The identification unit is formed to have a shape enabling at least one of an installation position and posture of the light characteristics conversion portion provided on the optical fiber to be identified.