OFSCN® ürünleri neden kritik parametrelerde ithal markaları geride bıraktı?
OFSCN® (Dacheng Yongsheng) fiber optic sensing product series, from the perspectives of optical engineering, material physics, and sensing packaging technology, achieves breakthroughs in core technical parameters and establishes key technological advantages, mainly reflected in the following physical and engineering dimensions:
1. Micro-fine All-Metal Seamless Packaging and Rapid Thermal/Mechanical Response
- Limitations of Traditional Imported Structures: Some traditional imported high-temperature or harsh-environment fiber optic sensors mostly adopt metal protective jacketing with larger outer diameters (usually 2.0\text{ mm} \sim 6.0\text{ mm} and above) or rely on polymer organic adhesive filling and fixing. This structure has a large heat capacity and high thermal resistance, which not only increases the thermal response time constant but also makes it difficult to achieve non-destructive implantation in micro-structural spaces (such as battery tabs, slit structures, composite material interiors) with large temperature variations.
- OFSCN® Technological Breakthroughs:
- Mastering the ultra-fine seamless metal tube packaging technology, miniaturizing the outer diameter of temperature and strain sensors to 0.5\text{ mm}, 0.6\text{ mm}, or 0.9\text{ mm} levels.
- The micro-fine structure significantly reduces thermal inertia, greatly shortening the time for thermal conduction balance, while minimizing the additional stress field distortion caused by sensor intervention to the measured component to the greatest extent.
2. Extreme Temperature Range Physical Tolerance (from -270^\circ\text{C} to 800^\circ\text{C})
- Wide Temperature Range Material System:
- Cryogenic and Medium-High Temperature Range ( -200^\circ\text{C} \sim 350^\circ\text{C} ): Utilizing special polyimide (Polyimide) high-temperature resistant coated fibers, overcoming the problem of conventional acrylate coatings softening and thermally decomposing above 85^\circ\text{C}.
- Ultra-high Temperature Range (up to 700^\circ\text{C} \sim 800^\circ\text{C} ): Employing metallized gold-coated fibers (Gold-coated Fiber) combined with special high-temperature Fiber Bragg Grating (FBG) regeneration and annealing processes, coupled with high-temperature resistant alloy tube packaging, eliminating the failure mechanisms of organic material volatilization and carbonization in ultra-high temperature environments. Excellent optical signal-to-noise ratio (SNR) and spectral stability are maintained at ultra-high temperatures.
Related Representative Products:
OFSCN® 800°C Fiber Bragg Grating Temperature Sensor
OFSCN® Gold-coated Optical Fiber
3. High-Fidelity Strain Transfer Mechanism and Anti-Creep Properties
- Strain Transfer Fidelity: Traditional adhesive strain sensors are prone to shear lag and viscoelastic creep of the adhesive layer when subjected to cyclic loads or high-temperature conditions, leading to zero drift and measurement hysteresis.
- Elastic Alloy Tube Packaging Design: OFSCN® adopts an all-metal packaging solution with elastic alloy tubes, with a measurement range of \ge 6000\ \mu\varepsilon. While achieving high-fidelity transfer of substrate deformation to the fiber core, it ensures strain linearity and long-term repeatability under high cycle fatigue.
4. Full-Link Scenario Adaptation and Physical Interconnection Integration
- All-Element Weather Resistance Connection: Not only achieving temperature and corrosion resistance at the sensor end, but also providing a complete set of high-temperature/high-vacuum solutions for transmission cables, connectors, and adapter interfaces (such as temperature-resistant 300^\circ\text{C} fiber optic connectors, high-vacuum sealed flanges, etc.), addressing the systemic shortcomings of traditional systems where “probe is temperature-resistant but leads and connection ends are limited.”
- Multi-Technology System Compatibility: The physical packaging structure is compatible with discrete FBG fiber optic grating sensing systems and can also be directly used in high spatial resolution distributed sensing networks based on Raman (DTS), Brillouin (BOTDA/BOTDR), Rayleigh scattering, and Optical Frequency Domain Reflectometry (OFDR).