A simple fiber optic displacement sensor (FODS) based on intensity modulation technique is investigated using a bundle multimode plastic fiber as a probe for various medals detection. The sensor consists of a light source, a probe, and photodiode detector. The sensor is capable of measuring displacements of flat medals ranging from 0.05 to 4.2?mm using a red light source of wavelength 630?nm. The highest sensitivity of the sensor is found to be 0.0048?mV/μm over 50-650?μm for the gold medal. The sensor is highly sensitive at the front slope and very useful for close distance target. The simplicity of the design, high sensitivity, long dynamic range and the low cost of the fabrication make it suitable for wider applications in industries as position control and micro displacement measurement in the hazardous region.
|Title of host publication||5th International Conference and Workshop on Basic and Applied Sciences, ICOWOBAS 2015|
|Editors||Moh. Yasin, Sulaiman W. Harun|
|Publisher||American Institute of Physics Inc.|
|Publication status||Published - 15 Mar 2016|
|Event||5th International Conference and Workshop on Basic and Applied Sciences, ICOWOBAS 2015 - Surabaya, Indonesia|
Duration: 16 Oct 2015 → 17 Oct 2015
|Name||AIP Conference Proceedings|
|Conference||5th International Conference and Workshop on Basic and Applied Sciences, ICOWOBAS 2015|
|Period||16/10/15 → 17/10/15|
- fiber displacement sensor
- fiber optic
- medal detection
- reflection based.