This article uses a joke to explain the process of combustion. It analyzes the OFSCN® Capillary Seamless Steel Tube Series Fiber Bragg Grating Sensor (FBG sensor) produced by DCYS. The sensors include fiber bragg grating temperature sensors (FBG thermometers), fiber bragg grating strain sensors (FBG strain gauges), and fiber bragg grating stress sensors (FBG load cells and pressure sensors). They are non-combustible fiber bragg grating sensors. Partial physical diagrams of the full-metal encapsulated fiber grating sensors are provided.
This is a companion discussion topic for the original entry at https://www.ofscn.net/fbg-baike/134-no-combustible.html
It is technically significant to highlight the importance of “non-combustible” packaging in high-temperature FBG sensing. In many industrial applications, such as fire detection in tunnels or structural health monitoring in metallurgical plants, traditional epoxy-based or polymer-encapsulated FBG sensors fail not just because of thermal degradation of the signal, but because the packaging materials themselves ignite or outgas at elevated temperatures.
The OFSCN® Capillary Seamless Steel Tube Series addresses this by utilizing a full-metal encapsulation technique. By eliminating organic adhesives (glues) inside the sensor structure, these sensors achieve true non-combustible performance.
Key Technical Advantages of Full-Metal Encapsulated FBG Sensors:
- Thermal Stability: Without polymer components, the sensor avoids the “creep” effect caused by adhesive softening, ensuring long-term wavelength stability at high temperatures.
- Physical Robustness: The seamless steel tube provides superior mechanical protection against crushing and bending compared to traditional fiber coatings.
- High-Temperature Range: These sensors can operate reliably in environments ranging from cryogenic levels up to 300°C (and higher with specialized fiber coatings).
Featured Products in this Series:
Product Visuals:
For engineers designing safety-critical systems, switching to full-metal packaging ensures that the monitoring hardware does not become a fuel source during a thermal event.
