Abstract
A fiber Bragg gratings (FBG) flow sensor is designed and developed, which is based on cone shunt devices. And the fiber Bragg grating pressure sensor is used for signal demodulation. At the same time the switch is used to control different flow tube openings opening and closing situations. The sensor is very sensible to the flow velocity, and very stable. The measuring range is 92.5-802.3 mm/s, the sensor can detect the change of the flow velocity as low as 0.4 mm/s, and it is insensitive to temperature. By optimizing the parameters of the sensor, the sensitivity and accuracy can be improved, and the measuring range may be expanded.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1463-1466 |
| Number of pages | 4 |
| Journal | Guangdianzi Jiguang/Journal of Optoelectronics Laser |
| Volume | 22 |
| Issue number | 10 |
| State | Published - Oct 2011 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
Keywords
- Fiber Bragg grating (FBG)
- Fiber optics
- Flow velocity sensor
- Separated speed