Silicone Rubber Based Highly Sensitive Fiber-Optic Fabry-Perot Interferometric Gas Pressure Sensor.
Xin ChengJitendra Narayan DashDinusha Serandi GunawardenaLin HteinHwa-Yaw TamPublished in: Sensors (Basel, Switzerland) (2020)
A simple, compact, and highly sensitive gas pressure sensor based on a Fabry-Perot interferometer (FPI) with a silicone rubber (SR) diaphragm is demonstrated. The SR diaphragm is fabricated on the tip of a silica tube using capillary action followed by spin coating. This process ensures uniformity of its inner surface along with reproducibility. A segment of single mode fiber (SMF) inserted into this tube forms the FPI which produces an interference pattern with good contrast. The sensor exhibits a high gas pressure sensitivity of -0.68 nm/kPa along with a low temperature cross-sensitivity of ≈ 1.1 kPa/°C.
Keyphrases
- room temperature
- replacement therapy
- mechanical ventilation
- carbon dioxide
- hypertrophic cardiomyopathy
- magnetic resonance
- photodynamic therapy
- optical coherence tomography
- magnetic resonance imaging
- molecularly imprinted
- computed tomography
- left ventricular
- contrast enhanced
- high resolution
- acute respiratory distress syndrome
- label free
- simultaneous determination