Among hundreds or thousands of cables, how can you quickly find the corresponding sensor using the digital loop?
In the engineering deployment of fiber optic sensors (such as Fiber Bragg Grating sensors), faced with hundreds or thousands of extremely similar fiber optic cables, labeling rings (commonly known as number rings, numbering tubes, or coding rings) are essential universal engineering tools for establishing the mapping between physical paths and logical channels, enabling rapid troubleshooting and maintenance.
The following outlines the general technical principles and operational methods for quickly locating and managing sensors using labeling rings from an optical engineering and field deployment perspective:
I. Core Physical Mechanism and Design Principles of Labeling Rings
Labeling rings are typically placed behind the fiber optic connector boot (e.g., FC/APC) or at both ends of the cable on fiber optic patch cords or sensor pigtails.
- Unique Alphanumeric Coding: Utilizing fade-resistant, temperature-resistant materials (such as polyolefin heat-shrink tubing or snap-on numbering tubes), clearly printed with numbers (e.g.,
01, 02...) or alphanumeric combinations (e.g.,A-01, B-02) that correspond to specific physical paths. - Multi-Level Color-Coding: Accompanied by different background colors (e.g., red, yellow, blue, green) to distinguish different measurement point areas, sensor types, or different channels (Ports) of the demodulator, significantly narrowing down the troubleshooting scope.
II. How to Quickly Locate the Corresponding Sensor Using Number Rings?
In actual projects with hundreds of cables, rapid retrieval is typically achieved through the following standardized engineering steps: