1. Using Omnisens’ DITEST System
Samer Najjar
Area Sales Manager, EMI
October 4th 2011

2. Agenda
 EMI + Omnisens
 Pipelines
 Technology
 Omnisens DITEST
 Summary
 Q&A
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3. Engineering & Marketing Int’l
 Founded in 1992
 HQ in Los Angeles, CA
 Offices in Beirut, Bahrain
 15 employees
 Bring Latest Technology to
the Middle East
 SmartSignal
 OSIsoft
 Omnisens
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4. Omnisens
 Privately-owned Swiss company, established in 1999
 Spin-off from Swiss Federal Institute of Technology
in Lausanne
 Headquarters in Morges, Switzerland
 Backed by VINCI Capital since 2008
 30 highly educated employees
 Worldwide customer base
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5. Pipelines
 Critical network & Lifeline
 Millions of kilometers
 Various terrains
 Wide range of products:
 Oil
 Gas
 Water
 Sulfur/Chemicals
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6. Threats
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7. Benefits of FO Leak Detection
Better Safety Increase Profits
Environment Peace of Mind
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8. Technology
From N pin point sensors to
monitor N locations...
Multiplexed
sensors
N sensors, N wires,
N calibration
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9. ...to one fiber to monitor
thousands of locations
Remote sensing
One cable, one monitor
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10. Distributed Sensing
 Distributed sensing is based on the analysis of light
scattering
 Scattering originates from inhomogenities in silica
 Scattering modifies the spectrum of the incident light
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11. Brillouin, Rayleigh, Raman
Scattering medium
 Scattering processes
used for sensing Laser, lo
applications:
Rayleigh
detection and analysis of fast
intensity variations acoustic
signal detection.
Raman
scattered magnitude is
temperature dependent
Brillouin
lines are temperature and
strain sensitive
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12. Brillouin Distributed Sensing
Hot spot
Uniform
temperature
Analysis of the
backscattered light
Use of pulsed light enables
localization
Optical fiber
Spectral analysis of the
scattered light provides the
Temperature and/or Strain
information
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13. Brillouin
 Brillouin-based distributed sensors exist in two versions:
BOTDR BOTDA
Brillouin Optical Time-Domain Brillouin Optical Time-Domain
Reflectometry Analysis
BOTDR is based on the spontaneous BOTDA is based on the stimulated
back-scattered light (linear) scattering
• Single fiber end access vs of light (nonlinear)
• Requires frequency processing at the • Two-fiber loop configuration – two fiber
detection ends access
• Weak signal, long averaging times • Strong signal, reduced averaging times
• Longer distances capabilities and faster
acquisition times
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14. Omnisens DITEST
 One single laser 2008 Global Fiber Optic Sensors & Customer
Value Innovation of the Year Award
 Pump and probe signals generated
by optical signal processing
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15. Advantages of DITEST
 One single laser source
 Automatic compensation of drifts
 Flexibility in the generation of optical signals (pump
and probe intensity adjustments)
 Enhanced signal to noise ratio
 Long distance capabilities
 Large optical budget (> 10dB in standard, custom unit
> 20dB upon request)
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16. Advantages of DITEST
 Standard single-mode fibers
 1550nm wavelength
 Brillouin scattering – frequency-based technique –
intrinsically stable
 Stimulated Brillouin Scattering - BOTDA
 Single laser source setup
 Pump and probe generated from the same laser source
 Self compensation of drifts
 Long-term stability
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17. Advantages of DITEST
 Improved Signal-to-Noise ratio – Higher Optical
Budget
 Performance maintained over long distances
– Short acquisition time
– Long distance range >50km
– Short spatial resolution down to 1 m
– Excellent measurement resolution (0.5°C and 10mε)
 Frequency-based technique – Long term stability
and reliability, not sensitive to attenuation drifts or
loss
 Uses standard single-mode fibers
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18. Comparison Matrix
 Pipeline long-range monitoring
Fly Walk Mass Balance Omnisens
Long range    
Submarine / terrain    
Quick response    
Continuous 24/7    
Pinpoint accuracy localization    
All-terrain    
No false alarms    
Sensitivity    
No Opex costs    
Ground movement detection    
Third party Intrusion detection    
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19. Summary
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20. Thank You
Samer Najjar
Area Sales Manager, EMI
snajjar@emisoftech.com
+965 67 637 237
+961 70 806 306
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