DiTeST HDPE Strain Sensor
The DiTeSt HDPE Strain sensor is a unique sensor for the evaluation of distributed strain over several kilometers. It is used in a wide range of applications that require distributed strain sensing, such as soil movement and ground monitoring.
- Strain range
- Up to 1%
- Operating / storage temperature
- −40 °C to +85 °C
- Installation temperature
- −10 °C to +50 °C
Overview
In detail
Cable construction
The DiTeSt HDPE Strain sensor is a small flexible mini armored fiber optic strain sensing cable with central metal tube, metallic armoring wires and HDPE outer sheath. The central metallic tube contains 1 optical fiber offering a strain range up to 1%. The cable is built from an HDPE outer sheath with interlocking system, special grade SS 316L armoring, an SS 316L metal tube for protection and hermetic seal, and a special strain optical SMF.
Built for direct burial
This sensor is particularly suitable for outdoors environment for direct burial applications, both ground and concrete. Thanks to the special package design, the DiTeSt HDPE Strain sensor offers high tensile strength, crush resistance, longitudinal lateral water tightness, abrasion resistance with an optimized outer sheath to improve strain transfer and excellent rodent protection.
System compatibility and applications
The DiTeSt HDPE strain sensor is fully compatible with the DiTeSt system and all its accessories. Applications include civil infrastructure, tunnel monitoring and distributed pipeline strain monitoring.
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Specifications
Technical specifications
- Strain range
- Up to 1%
- Operating / storage temperature
- −40 °C to +85 °C
- Installation temperature
- −10 °C to +50 °C
- Outer diameter
- 3.5 mm
- Weight
- 19 kg/km
- Max crush resistance
- 800 N/cm
- Max tensile strength
- 700 N (installation)
- Min bending radius
- 70 mm (with tensile), 53 mm (without tensile)
- Hydrostatic pressure
- 300 bar
- Fiber
- 1 optical fiber, SMF 9 / 125 µm ITU-T G.657
- Fiber attenuation (cabled @ 20 °C)
Related
Often specified alongside
Geosystems
Vibrating Wire Strain Gauge SM-5
- Range
- 3000 µε
- Accuracy
- +/- 0.5% F.S.
- Temp
- −20 to +80°C
- Range
- 200 to 35,000 kPa (standard steps up to 35,000 kPa)
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