Corporate Overview We will start shortly…. SOFO VII MuST Universal Reading Unit for SOFO and MuST...
-
Upload
jordan-morgan -
Category
Documents
-
view
213 -
download
0
Transcript of Corporate Overview We will start shortly…. SOFO VII MuST Universal Reading Unit for SOFO and MuST...
Corporate OverviewWe will start shortly…
SOFO VII MuST SOFO VII MuST Universal Reading Unit Universal Reading Unit for SOFO and for SOFO and MuST (FBG)MuST (FBG)SensorsSensors
Daniele Inaudi
[email protected] SA, Manno, Switzerland
www.smartec.ch
Roctest, St. Lambert, Canadawww.roctest.com
Web Seminar
oYou should hear my voice through your PC speaker / headset
oYou can ask questions using the “Questions” panel on the right of your screen. We will answer:• In the “Questions” Panel• At the end of the presentation• By email
oLater this week you will receive link to:• Presentation in PowerPoint, PDF and with narration• Datasheets
Contents
o Introductiono SOFO Technologyo FBG Technologyo SOFO VII reading unit introductiono Configurationso Specificationso Conclusion
Introduction
o Fiber Optic Sensors (FOS) for Structural Health Monitoring (SHM) have moved from R&D to mainstream applications
o Some technologies have emerged as dominant:• SOFO: Long-gauge deformation sensors• FBG’s: Point Strain and Temperature sensors• Brillouin and Raman scattering: distributed Sensing
o Standards and interoperability are emerging, allowing combination of FOS and traditional sensors in the same projects
SOFO Sensors
o Advantages:• Long-gauge: not sensitive to local
changes. Enables monitoring at the scale of structural elements• Built-in temperature compensation• Very accurate: sub-microstrain• Long-term stable• Track record of more than 10’000
sensors installed over 15+ years
SOFO System
o Long-gauge fiber optic deformation sensors
o Gauge length of 0.2m to 10mo High resolution: 2µmo Excellent long-term stabilityo Insensitive to temperature, EM fields, corrosion,...o Embeddable or surface installable in new and existing
structureso Easy and rapid to install and measureo Ideal for monitoring of large structures, especially
concrete, and geotechnical applicaitons
MuST Sensors
o Advantages:• Variety of sensing parameters and
conditions• Strain on metals, composites,
concrete…• Temperature • Tilt• Accelleration• Mulitplexing• Accuracy and stability
Fiber Bragg Grating SensorsFiber Bragg Grating Sensors
MuST System
o Multiplexed Strain and Temperature monitoring systembased on Fiber Bragg Gratings
o Up to 10 strain sensors and 25 temperature sensors on the same line
o Gauge length from 1 cm to 2 mo Temperature measurement for strain and deformation
sensorso Static and dynamic measurements possible
SOFO and MuST (FBG)
o SOFO and FBG: two leading fiber optic sensing technologies for SHM
o SOFO offer superior performance and flexibility in monitoring deformations of large structures. In particular well adapted to measure deformations of concrete, rock and soil.
o SOFO has lower sensor costso MuST (FBG) offer sensors for different parameterso MuST (FBG) sensors can be multiplexed in-lineo In real-world applications it would be ideal to use
sensors based on both technologies in the same project
Interoperability ?
o Is it possible to use SOFO sensors with MuST reading unit and vice-versa?
CompatibleCompatible
CompatibleCompatible
o Is it possible to use SOFO sensors with MuST reading unit and vice-versa? Now you can!
Introducing SOFO VII MuST
Compatible
Compatible
Compatible
Compatible
o Sophisticated algorithms allow measurement of SOFO sensors through spectral analysis.
SOFO VII technology
-18
-17
-16
-15
-14
-13
-12
-11
-10
1520 1520.5 1521 1521.5 1522 1522.5 1523 1523.5 1524 1524.5 1525
0
500
1000
1500
2000
2500
-60000 -40000 -20000 0 20000 40000 60000
FFT
SOFO VII MuST Features
o Two formats: • Portable (4 channels)• Permanent installation (4 or 8 channels)
o Each channel can measure either:• 1 SOFO sensor• Up to 5 SOFO sensors, using external 1x5 splitter• 1 chain of FBG sensors (e.g. 7 deformation, 12 strain, 25 T)• Up to 4 chains of FBG sensors, using external 1x4 coupler
o Each Channel can be SW configured for SOFO or MuSTo Integrates field PC with SMARTEC software engine and
user interface
SOFO VII MuST Units
Permanentmonitoring
(4 or 8 channels)
Portable
(4 channels)
o 4 SOFO Sensors
Configuration Example 1
o 2 SOFO sensors + 2 FBG chains
Configuration Example 2
o 5 SOFO sensors per channel using Splitter
Configuration Example 3
o All together now
Configuration Example 4
1x4 coupler
Splitter ≠Coupler
Splitter -> SOFO
Coupler -> MuST
1x5 splitter
SO
FO
Mu
ST /
FB
G
Temperature
Tilt Accelleration Strain
Interfacing with SOFO VII
o Integrated PC allows on-board SMARTEC’s SDB software and advanced connectivity
o SDB, SDB View and SDB Pro now included in the SOFO VII price (starting October 1st 2013)
o Ethernet interface, for remote access and user interfaceo USB interface, e.g. for 4G modem or data downloado Touch screen on portable unit
Map view with colors coding for pre-warning and warning.
Tab view with colors coding for pre-warning and warning.
Sensor list.
Plot view with pre -warning and warning thresholds.
SDB View software
Create sensors Create sensors based on based on complex complex mathematical functions functions
SDB Pro Software
Performance
SOFO Sensors Measurement MuST (FBG) Sensor Measurement
Measurement resolution 2 μm RMS 1 pm RMS
Linearity / Accuracy < 2 ‰ ±2 pm
Sample rate 1 Sample/s (1Hz) 1 Sample/s (1Hz)
Measurement range Max. 50 mm 100 nm (1500 to 1600 nm)
Sensors per channel Max 5 SOFO Deformation sensorsMax 7 MuST (FBG) Deformation sensorsUp to 12 Strain FBG sensorsUp to 25 Temperature FBG sensors
Calibration None, not required NIST traceable wavelength reference
Optical Connectors E-2000 PC (0°) E-2000 AC (8°)
Dynamic range >50 dB >50 dB
Measurement time < 2 s (incl. SDB writing) per channel < 2 s (incl. SDB writing) per channel
Available channel count 4 or 8* channels total, software configurable between SOFO and MuST
SOFO VII / MuST Universal Reading Unit
SPECIFICATIONS – PERMANENT INSTALLATION
AC power supply 230 V 50 Hz / 110 V 60 Hz Auto detect
External connections Ethernet connection, 4 or 8 optical ports, power supply, display and screen
Data logger capacity Typical 5 years of data with measurements every 1h.
Dimensions ~ 500 mm x 500 mm x 210 mm
Weight ~ 25 kg
Operating temperature 10°C to + 40°C- 40°C to + 40°C with heating option*
Humidity 90% non-condensed
SOFO VII / MuST Universal Reading Unit
SPECIFICATIONS - PORTABLE
AC power supply 230 V 50 Hz / 110 V 60 Hz Auto detect
DC power supply 18-20 VDC or internal battery
Nominal consumption 45 Watt (Peak 90W)
Communication RJ45 Ethernet; USB
Control interface 12” touchscreen GUI; Ethernet TCP / IP; USB
External connections Ethernet connection, 4 optical ports, power supply, display and external screen
Data logging format SDB Database
Dimensions ~ 360 mm x 275 mm x 100 mm
Weight ~ 7,3 kg – Aluminum enclosure
Operating temperature +10°C to 40°C
Relative humidity <90%, non-condensed
Operating temperature +10°C to + 40°C
Relative humidity < 90% non-condensed
SOFO VII / MuST Portable Reading Unit
Conclusions
o New SOFO VII MuST reading unit can measure SOFO and MuST (FBG) sensors.
o Mix-and-match to SOFO and MuST sensors as required by each project.
o SOFO sensors can now be multiplexed with splitter.o Portable and permanent unitso Integrates SDB software for data acquisition,
management and user interface (local or remote)o Unique solution on the market, available immediatelyo Competitive pricing, lower than previous generation
SOFO Reading units.