CH_Inaudi_Smartec
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Transcript CH_Inaudi_Smartec
Structural sensors for use in
cryogenic environments
Daniele Inaudi, CTO
SMARTEC SA
Part of Roctest Group / Nova Metrix
World’s largest supplier of structural health
monitoring systems
World’s largest supplier of fiber optic sensors
Offices in Canada, US, Switzerland, UK, France
Supply of sensing HW and SW components,
SHM systems and associated services
Experience in sensing for cryogenic and
radiation environments: CERN, ITER,
instrumentation of superconductive magnets,
LNG tanks and pipelines, nuclear power
plants, nuclear waste disposal
Fiber optic Sensors: Why?
Small size
Great variety in the measurable parameters
Distributed and Multiplexed topologies
Insensitive to external perturbations
Reliability in demanding environments
Long-distance remote monitoring
Compatible with data-transmission network
Fiber Optic Sensor Types
Point Sensor:
Quasi distributed (multiplexed):
Sensoptic (Fabry-Pérot)
MuST (FBG)
Long base:
SOFO
Distributed: DiTest / DiTemp
(Brillouin and Raman)
Distributed Sensing
Reading Unit
Temp. [°C]
T1
Distributed Sensor
1m
100m
T1
T2
20km
F
F
T2
Position [m]
1000m
e
Strain [me]
0m
e
Position [m]
ITER projects
Qualification and production of fiberoptic sensors for the monitoring of
superconductive magnets:
Strain
Small displacement (contact)
Large displacement (contact)
Laser-distance-meters: contactless
displacement
Point temperatures
Distributed temperatures
Fabry – Perot FO sensor for ITER
FBG FO sensors for ITER
Qualification for cryogenic conditions
Strain and Displacement sensors welded on test support during test at
nytrogen temperature
Non-contact: Laser Distance Meter
Distributed T Testing
Thank you for your attention
Thank you for your attention
For more information
www.roctest-group.com
[email protected]