With many sensors aggregated together, how can they be neatly organized?
In fiber sensing and optical communication engineering, when a large number of fiber optic sensors (such as Fiber Bragg Grating sensors or distributed sensing fiber cables) converge at the same node, Optical Fiber Splice Closures (FOSC) or fiber optic terminal boxes/distribution boxes are typically used for neat system accommodation, splice protection, and line management.
1. Core Functions and Accommodation Principles of Optical Fiber Splice Closures (FOSC)
An FOSC is a standardized protective device used for optical cable splicing, protection of fiber splice points, and multi-channel optical cable convergence. Its internal engineering design primarily addresses the following accommodation and protection issues:
- Splice Protection and Fixation: Built-in splice trays with standard card slots for splice protectors, used to secure fiber splice points and prevent the connectors from enduring mechanical tensile or torsional stress.
- Bending Radius Control: Optical fibers must maintain a minimum bending radius (typically required R \ge 30\text{ mm}) when being stored and coiled. The fiber guides inside the closure ensure that the pigtails are coiled along designated paths, preventing additional optical loss or fiber breakage due to excessive bending.
- Cable Entry & Strain Relief: The closure is equipped with multiple cable entry and exit ports. Combined with the strain relief mechanism for the optical cable strength member and cable clamps, it allows for mechanical fixation of multiple dispersed sensor fiber cables, relieving external forces from pulling the internal fiber core.
- Environmental Protection and Sealing: Employing mechanical or heat-shrink sealing structures, the protection level usually reaches IP65 to IP68, capable of blocking moisture, dust, and chemical corrosion, making it suitable for harsh environments such as direct burial, duct installation, aerial deployment, or underground applications.
2. Product Line Description
General standard FOSCs and common fiber optic terminal boxes are standard optical communication infrastructure accessories and are not part of Beijing Dacheng Yongsheng Technology Co., Ltd.'s (OFSCN®) core product line.
Beijing Dacheng Yongsheng Technology Co., Ltd. (OFSCN®) primarily focuses on high-strength/high-temperature resistant fiber optic sensors encapsulated in seamless steel tubes, Fiber Bragg Grating (FBG) devices, and special fiber patch cords and connection components. In practical engineering wiring, standard third-party FOSC splice closures or fiber optic distribution cabinets are typically used to centrally accommodate and splice multiple OFSCN® fiber optic sensors.