Title
Static Ice Pressure Measuring System Based on Fiber Loop Ring-Down Spectroscopy and FPGA.
Abstract
Hydraulic engineering built in the cold region, such as reservoirs and hydropower stations, is often threatened by static ice pressure from nature. Therefore, it is of vital significance to research the pressure variation in the growth and melting processes of the ice layer for the design and protection of hydraulic structures in cold regions. This paper introduces an optical fiber sensor system based on the fiber loop ring-down spectroscopy technology and field-programmable gate array (FPGA) pulse modulation technology. An electro-optic modulation scheme that relied on FPGA to generate optical pulses with adjustable pulse width and period is proposed, which is more suitable for the in-situ observation. In addition, the temperature stability and repeatability of the system are also discussed. This system was applied to the real-time detection of static ice pressure on the sidewall and bottom of the polyvinyl chloride (PVC) pipe during the ice growth and melting processes. The results indicate that the system has favorable stability and sensitivity, and the relationship obtained between the static ice pressure and temperature could provide some references for the field application in the future.
Year
DOI
Venue
2020
10.3390/s20205927
SENSORS
Keywords
DocType
Volume
static ice pressure,fiber loop ring-down spectroscopy,FPGA pulse modulation,continuous detection
Journal
20
Issue
ISSN
Citations 
20
1424-8220
0
PageRank 
References 
Authors
0.34
0
8
Name
Order
Citations
PageRank
Xiao Deng100.68
Dingrui Wang200.34
Lipeng Pan300.34
Li Zhang427242.02
Jun Zhang500.34
Xinshuo Lu600.34
Chao Du700.68
lin zhang822.80