DiTeSt SMARTape II Strain Sensor
The DiTeSt SMARTtape II is a distributed strain sensor in a flat tape form factor, for average-strain monitoring over long distances using BOTDR/BOTDA (Brillouin scattering) technology. It can be surface-mounted or embedded directly into composite materials.
- Operating temperature
- -40 °C to +120 °C
- Strain range
- -1% (compression) to +1% (elongation)
- Tape dimensions
- 9.90 mm × 0.32 mm
Overview
In detail
How it works
A single-mode optical fiber (SMF 9/125 µm, ITU-T G.652.D compliant) is embedded in a glass-fiber-reinforced polymer tape, which is bonded to a structure or embedded in composites to give a continuous strain profile along its length via Brillouin scattering.
Deployment
Suited to surface mounting on smooth surfaces (glued or clamped) or embedding into composite materials, for use in harsh civil and oil & gas engineering environments.
Physical characteristics
The tape is approximately 9.90 mm wide and 0.32 mm thick, weighs about 3.8 kg/km, and is supplied on reels up to 800 m. Tensile strength is rated at ≥400 MPa with elongation at break of ≥2.5%, and a minimum long-term operating bend radius of 100 mm.
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Specifications
Technical specifications
- Operating temperature
- -40 °C to +120 °C
- Strain range
- -1% (compression) to +1% (elongation)
- Tape dimensions
- 9.90 mm × 0.32 mm
- Weight
- 3.8 kg/km
- Max cable length
- 800 m per reel
- Tensile strength
- ≥ 400 MPa
- Elongation at break
- ≥ 2.5%
- Minimum bending radius
- 100 mm (operating, long-term)
- Fiber type
- SMF 9/125 µm, ITU-T G.652.D compliant
- Hydrostatic pressure rating
- 300 bar
Related
Often specified alongside
ESS Earth
Resistance Wire Extensometer RWE
- Application
- Underground hard rock and coal mine displacement monitoring
- Monitoring points
- Pillars, stope walls, roof
Geosystems
JM Series Vibrating Wire Jointmeter
- Range
- 25, 50, 100, 150, 200, 250, 300 mm (200/250/300 mm not available for JM-E)
- Accuracy
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