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Technology and Applications

Technology and Applications. Technology and Applications. Smart Fibres . Developer of fibreoptic sensing systems based on Fibre Bragg Gratings Established 1998 in the United Kingdom Primary Markets: Oil and Gas Renewable Energy Secondary Markets: Marine Civil Engineering

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Technology and Applications

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  1. Technology and Applications Technology and Applications

  2. Smart Fibres • Developer of fibreoptic sensing systems based on Fibre Bragg Gratings • Established 1998 in the United Kingdom • Primary Markets: • Oil and Gas • Renewable Energy • Secondary Markets: • Marine • Civil Engineering • Aerospace • Nuclear • Medical

  3. The Fibre Bragg Grating (FBG) • A Fibreoptic Sensor • Recorded with UV laser light • Reflected wavelength varies with strain and Temperature UV Laser Light Single-mode Telecoms Optical Fibre Alternating bands of high and low refractive index

  4. A Fibre Bragg Grating Sensing System Fibre System demonstration video Data 3. Processing Unit converts wavelengths to measurands of interest, which are displayed real time or logged for future analysis 2. Tuneable laser interrogation unit illuminates fibre and measures reflected Bragg wavelengths FBG Sensors 1. Numerous sensors recorded on a single fibre, mm or km apart. Sensors can measure strain, pressure, temperature etc

  5. Uses of Fibreoptic Sensing • Performance feedback to designers • Intelligent or “Smart” control of active systems • Structural Health Monitoring, offering reduced cost of ownership through: • Condition based maintenance • Extended service via fatigue life assessment • Reduced risk of failure

  6. Optical Sensing Technology Benefits • No electronics • Fewer components • No moving parts • Tolerant to extremes of: • Temperature • Vibration • Electromagnetic radiation • Magnetic radiation • Nuclear radiation

  7. Optical Sensing Technology Benefits • Dozens of multi-parameter sensors on one fibreoptic cable: • Reduced connections • Reduced penetrations • Increased reliability • Reduced cost

  8. Optical Sensing Technology Benefits Current capability, tens of Km between instrument and sensors:

  9. Optical Sensing Technology Benefits Future capability, 100+ Km:

  10. Optical Sensing Technology Benefits No inherent measurement drift Potential for long-term monitoring with no recalibration

  11. Optical Sensing Technology Benefits Immunity to EMI No need for large shielded cables Intrinsically safe operation ATEX certified

  12. Optical Sensing Technology Benefits Sensors proven over millions of high strain cycles, often outlasting the host material

  13. Optical Sensing Technology Benefits Miniature sensors allow dense instrumentation in inaccessible places.

  14. Smart Fibres’ Sensor Catalogue

  15. Sensors for Strain • Bare FBG or SmartTape for low profile surface mount or composite embedment Datasheet Datasheet • SmartPatch for surface mount to most materials Datasheet • SmartWeld for spot welding to metallic structures Datasheet • SmartBar for concrete embedment Datasheet

  16. Sensors for Temperature • All strain sensor packages can be supplied with integrated or separate temperature sensing. Additionally the following dedicated SmartTemp sensors are available: • Loose sensor array in polymer or metal tube Datasheet • Terminal FBG in capillary for miniature or composite embedment sensor • Thermal expansion coupon for increased measurement accuracy

  17. Sensors for Pressure Sensing • Downhole SmartCell Diaphragm P/T gauge for pressures up to 5 kpsi Datasheet • SmartPort downhole P/T gauge for higher pressures to 30,000+ psi Datasheet movie • In-well sensor connectivity provided by SmartLink Datasheet • Subsea SmartPort HP/HT pressure gauge for subsea production equipment Design Note

  18. Sensors for Acceleration (3rd party ) • Low frequency(DC - 50 Hz, 430 Hz resonance) Datasheet • High frequency(DC - 1 kHz, 3.1 kHz resonance) Datasheet

  19. Sensors for Displacement/Curvature • SmartBridge displacement transducer Datasheet • SmartRod curvature / strain sensor with FBG arrays in FRP pultrusion Datasheet

  20. Sensors for Flow Sensing Sensors for Flow Sensing • SmartFlow FBG Vortex Shedder flowmeter Also offers steam quality measurementsSurface, subsea or downhole application Datasheet

  21. SmartScan Instrumentation • High-speed, high-resolution, low-cost interrogator • 2.5 kHz sampling of up to 64 connected sensors up to 76.9 kHz sampling of each sensor in turn • Best in class resolution, robustness and dynamic range • ATEX certified variants available • Further details of technology via • SmartScan Lite is a reduced speed (250 Hz) lower priced variant • SmartScan Aero is available for harsh environment use. It was flight-tested in 2007 and awarded technology readiness level TRL7, and then further tested in 2013 by an aerospace client Datasheet Datasheet 2013 Test Report

  22. SmartScan Instrumentation (cont’d) • SmartScan SBI is a complete single board interrogator developed for OEM use offering SmartScan performance on a 108 x 160 mm footprint • Modular SmartScan is a 19” rack instrument built of 2, 3 or 4 SmartScan SBI modules to produce a family of 8, 12 and 16 channel instruments with 40nm or 80nm tuning range Datasheet Datasheet

  23. SmartScope Instrumentation • Stable, high-accuracy instrument development from the proven SmartScan platform • Objective is to achieve best-in-class price/performance ratio: (accuracy + resolution + dynamic range) / price for quasi-static, long-term monitoring applications such as: • Downhole / subsea pressure sensing • Civil engineering SHM • Temperature sensing • Standard Product, 40nm, 4-channels 80nm, 16-channel product in development • ATEX certified variants available Datasheet

  24. FLAEMS Instrumentation • Fibre Laser Acoustic Emission Monitoring System • Developed by Smart Fibres (hardware) and QinetiQ (algorithms) with UK government support • Multi MHz sampling to identify and locate cracking in aerospace structures, particularly composites • Offers potential advantage over piezoelectric systems: • EMI insensitive (lightweight cabling) • Multiplexing Capability • Improved in-plane wave measurement • 1-fibre, 4-channel prototype developed and demonstrated • Market pull and investment required to progress White Paper Data capture Prototype Datasheet

  25. Primary Market Sectors

  26. Market Activity > Oil & Gas • Multi-point pressure/temperature sensing of “Intelligent Wells” • Condition monitoring of deep-water submersible pumps • Health monitoring of offshore structures • Risers • Flowlines • Offloading lines • Jumpers Case Study Overview Case Study Case Study

  27. Market Activity > Renewable Energy • Wind and marine current turbines • Blade load measurements for • Pitch control optimisation • Condition monitoring • Additional opportunity for monitoring • Towers & piles • Foundations • Drivetrain machinery Renewable Activity System Datasheet

  28. Market Activity > Aerospace • Airframe Health and UsageMonitoring System • Landing gear damage detection • UAV structural health monitoring • Structural damage event detection via acoustic emission monitoring(see FLAEMS) • Composite joint integrity monitoring Case Study Case Study Case Study

  29. Market Activity > Marine • Hull stress and load monitoring • Ship Structural Health Monitoring • LNG tank condition monitoring • Mast and stay load monitoring Case Study Case Study Case Study Case Study

  30. Market Activity > Civil Engineering • Long-term health monitoring of • Bridges • Buildings • Monuments • Tunnels • Foundations • Road Pavements • Structural assessment following seismic events

  31. Market Activity > Rail • Pantograph Condition Monitoring • Train condition monitoring • Train weigh-in motion • Bridge Monitoring • Characterisation of rail foundation • (Potentially) bearing monitoring

  32. Market Activity > Nuclear • New Market Sector for Smart Fibres, potential applications: • Pressure monitoring in steam pipes • SHM of reactor containment • SHM of steam generator • Temperature monitoring of nuclear waste • SHM of Cryostat infrastructure

  33. Market Activity > Medical • Temperature monitoring during laser heart ablation • Pressure feedback to surgeon during laser heart ablation • Enabled by miniature sensor and no electric power

  34. Market Activity > Selected References • A list of our extensive project references, and further information on certain projects, can be found at the webpage www.smartfibres.com/references

  35. Latest version of this presentation available at: www.smartfibres.com/docs/SF_Presentation.pptx Further information available at www.smartfibres.com

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