Plastic Optical Fibre Sensor for Spine Bending Monitoring
This paper presents a study on the application of plastic optical fibre for spine bending monitoring based on an intensity modulation. The bending angle is measured as the angle between the emitting and receiving fibres is changed. The measured light attenuation is compared with a theoretical evalua...
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| Main Authors: | , , |
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| Format: | Article |
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IOP Publishing
2013
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1088/1742-6596/450/1/012004 http://dx.doi.org/10.1088/1742-6596/450/1/012004 http://umpir.ump.edu.my/6347/1/Plastic_optical_fibre_sensor_for_spine_bending_monitoring.pdf |
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| Summary: | This paper presents a study on the application of plastic optical fibre for spine bending monitoring based on an intensity modulation. The bending angle is measured as the angle between the emitting and receiving fibres is changed. The measured light attenuation is compared with a theoretical evaluation and the differences between these values are discussed. It was found that the light attenuation for the light intensity agreed well (margin of error < 15%) with the theoretical value for the range between 180° (representing no bend) and 200° and it was significantly increased for the bending angle beyond that value due to the effect of fibre gap increment which resulted in a less reliable experimental estimation. |
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