一种受限聚合物型光纤法布里-珀罗温度传感器
By employing local chemical bonding interfaces or gradient microstructure arrays in fiber optic Fabry-Perot temperature sensors, the constraint between the polymer filler and the inner wall of the capillary is enhanced, solving the problem of radial dissipation of thermal expansion energy in polymer-filled sensors and achieving high-sensitivity and stable temperature measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DALIAN UNIV OF TECH
- Filing Date
- 2026-05-20
- Publication Date
- 2026-07-17
AI Technical Summary
In existing polymer-filled fiber Fabry-Perot temperature sensors, the interface constraint between the polymer and the tube wall is insufficient, resulting in radial dissipation of thermal expansion energy, low sensitivity, and sensitivity to the filling length, making it difficult to achieve high-precision measurement.
By employing local chemical bonding interfaces or gradient microstructure arrays, strong constraints are constructed between the polymer filler and the inner wall of the capillary, forcing thermal expansion energy to be mainly converted into axial displacement. The interface constraints are enhanced through chemical bonding and microstructure mechanical anchoring, forming a gradient interface with strong constraints at the ends and weak constraints at the far ends.
It achieves high-precision temperature measurement, with sensitivity improved to 5-15 nm/℃, and sensitivity fluctuation of less than 5% under filling length error, combining high sensitivity and structural parameter stability.
Smart Images
Figure CN122217498B_ABST