12 Fibers FC to FC 9/125 Single Mode MultiFiber PreTerminated Breakout Trunk Cable This company is really a trustful cooperation partner for...
5 of 5 Stars!
400X Handheld Microscope Complete description.
it was described completely....
5 of 5 Stars!
SC Female to LC Male Singlemode Simplex Adapter Converter It is pretty good.
I have made several purchases...
5 of 5 Stars!
3M(9.8ft) 40GBASE QSFP+ to LC/SC/ST/FC Connector(8) Breakout Active Optical Cable Works well, doesn't disappoint.
Just the way I like...
5 of 5 Stars!
12 Fibers FC to FC 9/125 Single Mode MultiFiber PreTerminated Breakout Trunk Cable We want to establishing mutual benefit relationship and...
5 of 5 Stars!
3m Avaya/Nortel AA1404032-E6 Compatible QSFP+ to QSFP+ Passive Copper Cable High quality! Best service!
Fast delivery, I...
5 of 5 Stars!
SC/APC Singlemode Pre-polished Ferrule elite Field Assembly Connector Fast/Quick Connector Good quality.
I received the connectors and they...
5 of 5 Stars!
Deployable Tactical Fiber Optic Cable Reel Portable Field good shopping experience
It is unbelievable that I...
5 of 5 Stars!
12 Fibers FC to FC 9/125 Single Mode MultiFiber PreTerminated Breakout Trunk Cable This company is really a trustful cooperation partner for...
5 of 5 Stars!
400X Handheld Microscope Complete description.
it was described completely....
5 of 5 Stars!
SC Female to LC Male Singlemode Simplex Adapter Converter It is pretty good.
I have made several purchases...
5 of 5 Stars!
3M(9.8ft) 40GBASE QSFP+ to LC/SC/ST/FC Connector(8) Breakout Active Optical Cable Works well, doesn't disappoint.
Just the way I like...
5 of 5 Stars!
12 Fibers FC to FC 9/125 Single Mode MultiFiber PreTerminated Breakout Trunk Cable We want to establishing mutual benefit relationship and...
5 of 5 Stars!
3m Avaya/Nortel AA1404032-E6 Compatible QSFP+ to QSFP+ Passive Copper Cable High quality! Best service!
Fast delivery, I...
5 of 5 Stars!
SC/APC Singlemode Pre-polished Ferrule elite Field Assembly Connector Fast/Quick Connector Good quality.
I received the connectors and they...
5 of 5 Stars!
Deployable Tactical Fiber Optic Cable Reel Portable Field good shopping experience
It is unbelievable that I...
5 of 5 Stars!
Quick Re-Order

fibermart-news_banner_9.jpg

 

Monday 11 March, 2019 | RSS Feed

Fiber Optics Sensors Provide Early Warning for Landslides

by www.fiber-mart.com

Fiber optic sensors could warn people of imminent landslides, potentially saving lives and reducing destruction.
 
A team at the Second University of Naples is developing sensor technology that could detect and monitor both large landslides and slow slope movements. The researchers hope to mitigate the effects of these major natural disasters, similar to the way hurricane tracking can prompt coastal evacuations.
 
Optical fiber sensors embedded in shallow trenches within slopes would detect small shifts in the soil, the researchers said. Landslides are always preceded by various types of pre-failure strains, they said.
 
While the magnitude of pre-failure strains depends on the rock or soil involved — ranging from fractured rock debris and pyroclastic flows to fine-grained soils — they are measurable. Electrical sensors have long been used for monitoring landslides, but that type of sensor can be easily damaged, the researchers said. Optical fiber is more robust, economical and sensitive.
 
“Distributed optical fiber sensors can act as a ‘nervous system’ of slopes by measuring the tensile strain of the soil they’re embedded within,” said professor Dr. Luigi Zeni.
 
The researchers are also combining several types of optical fiber sensors into a plastic tube that twists and moves under the forces of the pre-failure strains. This will allow them to monitor the movement and bending of the optical fiber remotely to determine if a landslide is imminent.
 
The use of fiber optic sensors “allows us to overcome some limitations of traditional inclinometers, because fiber-based ones have no moving parts and can withstand larger soil deformations,” Zeni said.
 
He added that such sensors can be used to cover several square kilometers and monitored continuously to pinpoint critical zones.
 
The team will present their research at Frontiers in Optics in Tucson, Ariz., next month.





Other news for Monday 11 March, 2019


View all news for Monday 11 March, 2019 on one page




News for Friday 08 March, 2019


View all news for Friday 08 March, 2019 on one page




Recent News




News Archive - See All News from Fiber-Mart.COM


Newsletter
Enter your email for new arrivals, brands and special offers!
Tags: 1625nm Polarization | 19 Rack Mount | 1590nm Transceiver | 1G Switches | 1RU Rack Mount, | 1550nm WDM | 1590nm Sensor | 16PON EPON | 16V cards chassis | 15dBm Output | 18dBm Output | 1U Rack Mount | 1U 19 Rack Mount | 1U Horizontal | 1U Fiber Panels | 1U High 19" | 1G SFP | 15dBm EDFA | 1SFP 1RJ45 Ports | 1RU Rack Mount |
Product Tags: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0-9