Rainfall compensation scheme in distributed optical-fiber vibration sensor engineering system
Abstract
In this paper, the compensating scheme for the large noise induced by rainfall in the distributed optical-fiber vibration sensor engineering system (DFVSES) is proposed and demonstrated. DFVSES with rainfall compensation is made up of two subsystems using a common optical source and same optical circuit. Analyzing spectrum of the output signals under rainfall condition, and comparing the amplitude of the output signal for the sensing subsystem and the amplitude calculated from the amplitude of the output signal for the reference subsystem, the vibration can be got in the harsh climatic environments. We set up the experimental system, and the results show DFVSES with the scheme can effectively work under rainfall condition.
- Publication:
-
Sensors for Extreme Harsh Environments
- Pub Date:
- June 2014
- DOI:
- 10.1117/12.2050393
- Bibcode:
- 2014SPIE.9113E..0FZ