Conference paper
LPG based all plastic pressure sensor
A prototype all-plastic pressure sensor is presented and characterized for potential use as an endoscope. The sensor is based on Long Period Gratings (LPG) inscribed with a CO2 laser in 6-ring microstructured PMMA fiber. Through a latex coated, plastic 3D-printed transducer pod, external pressure is converted to longitudinal elongation of the pod and therefore of the fiber containing the LPG.
The sensor has been characterised for pressures of up to 160 mBar in an in-house built pressure chamber. Furthermore, the influence of the fiber prestrain, fiber thickness and the effect of different glues on the sensors' responsivity have been investigated in an attempt to optimize parameters. The prototype sensor LPG peak showed a sensitivity of up to 10 pm/mBar, but our analysis shows that this can be increased significantly with further optimization.
| Language: | English |
|---|---|
| Year: | 2015 |
| Pages: | 185-188 |
| Proceedings: | The 24th International Conference on Plastic Optical Fibers |
| Types: | Conference paper |
| ORCIDs: | Bundalo, Ivan-Lazar |
3D printers Carbon dioxide Electronic, Optical and Magnetic Materials External pressures Fiber optic sensors Fibers Long Period Gratings Long period grating Materials Chemistry Microstructured fiber Microstructured fibers Optical fibers PMMA Plastic coatings Plastic optical fibers Plastic pressures Polymers and Plastics Pressure Pressure chamber Pressure sensors Prototype sensor Responsivity Sensor Sensors
