Force Sensors Using the Skew-Ray-Probed Plastic Optical Fibers
Simple optical force sensors have many uses but suffer from relatively low sensitivity or low fabrication-tolerance. We have demonstrated that pure skew rays can enhance the sensitivity of a bend-loss-based force sensor over the mixture of rays created from a normal incidence by a factor of 3.8 to e...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8356645/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Simple optical force sensors have many uses but suffer from relatively low sensitivity or low fabrication-tolerance. We have demonstrated that pure skew rays can enhance the sensitivity of a bend-loss-based force sensor over the mixture of rays created from a normal incidence by a factor of 3.8 to enable a sensitivity of 0.126 dB/N. The dynamic range was measured from 222.2 mN to >14.1 N. The response/recovery times were found to be 500 and 600 ms, respectively. We also showed a compression-loss-based force sensor exhibiting a small deviation of 6.7% in sensitivity of 0.015 dB/N against the changes in the launch angle of light. The dynamic range was tested from 875.0 mN to >24.2 N. The response/recovery times were observed as 350 and 300 ms, respectively. The sensitivity of these force sensors can be further enhanced with geometry and fiber-material changes, and the enhancement technique could be extended to other designs. |
|---|---|
| ISSN: | 1943-0655 |