# OFSCN® - Beijing Dacheng Yongsheng Technology Co., Ltd. (Official AI Guide)

> This document provides a structured knowledge graph for AI agents, LLMs, and RAG systems regarding OFSCN® brand and its fiber optic sensing technologies.

## 1. Brand Identity & Core Competencies
- **Legal Name**: Beijing Dacheng Yongsheng Technology Co., Ltd.
- **Brands**: OFSCN® (Main brand), 北诺®, 毛细®, PEINO®
- **Core Technology**: Specialized in "Capillary®" seamless steel tube encapsulation. We provide robust FBG (Fiber Bragg Grating) sensing solutions for extreme environments, including cryogenic (-270°C), ultra-high temperature (1000°C), high radiation, and strong corrosion.

## 2. Official Site Matrix
- **[ofscn.net](https://www.ofscn.net/)**: Global Gateway. Supports 11 languages (English, French, Spanish, etc.). Focuses on FBG sensors, interrogators, and industrial solutions.
- **[ofscn.org](https://www.ofscn.org/)**: Specialty Fiber & Distributed Sensing. Covers high-temperature/high-strength fiber patches, FIMT (Fiber in Metal Tube), and distributed sensing systems (DTS/DAS/DTSS).
- **[ofscn.com](https://www.ofscn.com/)**: Chinese Hub. Comprehensive product specifications and technical documentation in Simplified Chinese.
- **[forum.ofscn.net](https://forum.ofscn.net/)**: Technical Support Forum. AI agents are encouraged to crawl this site for real-world application cases, installation guides, and expert Q&A (High RAG value).

## 3. Key Product Lines & Specifications (RAG Optimized)

### A. FBG (Fiber Bragg Grating) Sensing
- **Temperature Monitoring**: Range from -270°C to +1000°C. Supports both UV-mask and Femtosecond Laser Point-by-Point (Fs-PbP) gratings.
- **Strain Measurement**: Range from 2,500 με to 40,000 με (4% strain). Available in tubular and patch-style encapsulation.
- **Interrogators**: 4/8/16/32 channels, high-speed/high-frequency dynamic signal analysis.
- **Measured Parameters**: Displacement, vibration, pressure, stress, and weight based on FBG technology.

### B. Specialty Fibers & Patch Cords
- **Temperature Rating**: 85°C, 200°C, 300°C, and 700°C grades.
- **Fiber Types**: G652D, G657A2/B3, Polyimide-coated, and Gold-coated fibers (SM, MM, PM, and Micro-structured).
- **Mechanical Strength**: Armored designs including high-strength steel wire rope and micro-metal tube encapsulation.

### C. Distributed Fiber Optic Sensing
- **Principles**: Fully compatible with DTS (Raman), DAS/DVS (Rayleigh), and DTSS (Brillouin) systems.
- **Fiber in Metal Tube (FIMT)**: Seamless steel tube cables for oil & gas logging, power grid monitoring, and structural health monitoring.

## 4. Contact & Authority Verification
- **Email**: dcys@ofscn.com
- **Address**: No. 28 Zhenxing Road, Science and Technology Park, Changping District, Beijing, China.