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MuST FBG Multiplex SMART profile Deformation Sensor

SMARTEC - MuST FBG Multiplex - LONG-GAUGE DEFORMATION SENSOR ROBUST AND EASY TO INSTALL

SMARTEC – MuST FBG Multiplex SMART profile Deformation Sensor

The SMARTprofile strain sensors are transducers that transform a strain variation into a change in reflected wavelength of a FBG encapsulated into a surface mountable patch. These sensors are compatible with SMARTEC MuST Reading Units. Small cross-section (width ~8 mm; thickness ~3 mm) and composite packaging properties make it ideal for its application in harsh on-site conditions. It features high mechanical, chemical and temperature resistance.
It can be effectively used in the following applications:

  • Structural monitoring of naval structures
  • Sub-sea applications; e.g. monitoring of shallow and deep-water risers, off-shore platforms, and other oil & gas structures
  • Industrial and military structures etc.

The SMARTprofile can be simply bonded or clamped to any kind of surface such as steel, composite, concrete, etc. The SMARTprofile sensor is composed of an active and a passive zone. The active zone contains the composite sensing profile with embedded one or two Fiber Bragg Gratings (the second for temperature measurement and compensation). The metallic tube containing the optional temperature sensing FBG is also embedded in the same profile. The active zone serves as a measurement basis of the sensor. The passive zone is composed of the interconnection cable and a connector. Up to 4 such sensors can be chained to form a single sensing array. The temperature sensor can only be installed in the terminal sensor of the chain. Standard E-2000 connectors with a built in protective cover are used to connect the sensor with the reading unit or extension cables.

Key Features
  • High resolution
  • Insensitive to temperature variations
  • Insensitive to corrosion, vibrations and EM fields
  • No calibration required
  • Ideal for harsh on-site conditions
  • Suitable for extreme pressure conditions
  • Extended temperature range
  • High chemical resistance
  • Applicable in deep water
  • Long lifetime
Applications
  • Ship-hull monitoring
  • Riser monitoring

 

  • Length of active zone (LA, measurement basis):
 20 cm to 2m
  • Length of passive zone (connecting cable):
 1 to 200 m (longer distances available on request)
  • Pre-tensioning of the measurement fiber:
 0.5% of the length of active zone (others on special request)
  • Measurement range:
 Strain: 0.5 % in shortening, 0.75 % in elongation
 Temperature: -40 °C to +80 °C
  • Measurement resolution/ Accuracy:
 0,2 µε / 2 µε (using SMARTEC Reading Units)
  • Connecting cable protection options (see specific datasheet for details):
 Standard cable: Gray (for embedding or surface mounting in normal conditions); Stainless steel reinforced cable: Black (recommended in harsh conditions); Simple unprotected cable: Yellow (only for laboratory conditions)
  • Optical connectors:
 E-2000 AC (8°)
  • Operating temperature:
 Passive zone: -40 °C to +80 °C; Standard active zone: -50 °C to +110 °C; Special active zone (upon request): -50 °C to +170 °C
  • Waterproof:
 5 bars (15 bars with extra protection on anchoring points)

 

SMARTEC – MuST FBG Multiplex – LONG-GAUGE DEFORMATION SENSOR ROBUST AND EASY TO INSTALL

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+359 2 426 08 82

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