• Continuous monitoring of distributed strain or temperature in large civil engineering structures
• Dedicated cables for both high resolution strain measurement as well as temperature monitoring
• Multiple sensing channels for combined temperature monitoring of complex structures
• Cross compensation between structure deformation and thermal expansion of the material
• Detection of cracks occurence with resolution better than 1 mm
• Very large optical loss budget (up to 20 dB) to overcome the inherent loss of strain sensing cable integration.
• Permanent continuous monitoring with the automatic detection of abnormal conditions and interface with third party’ systems.

DITEST-STA

• Monitoring distance : > 3 km per sensor
• Spatial resolution : 0.5 m (*)
• Sampling resolution : 0.1 m
• Strain / Temperature resolution : 10 microstrain / 0.5°C (*)
• Optical loss budget : >20 dB (*)

(*) Temperature resolution, spatial resolution, distance range and acquisition time are inter-related. See DITEST datasheet or technical note for more information about performance specifications.

DITEST-SHM includes an application oriented software package which features:

• Measurement of distributed strain with temperature compensation
• Automatic compensation of temperature effects on strain measurements, as well as thermal expansion effects
• Detection and localization of cracks
• Configuration of Zones with associated alarms and relays activation
• User defined alarm settings
• Data management, system interfacing and communication

Long range Distributed temperature Optical Fiber Cable
The LTM OFC can accommodate up to 8 fibers. It is a robust cable suitable for direct burial as it integrates rodent protection. The cable includes the optical fibers used for temperature monitoring as well as spare fibers for data communication between the instruments and the control room.

In each project, Omnisens in collaboration with its solution providers offers project management, specific design specifications with respect to project requirements, complete documentation and implementation plan, installation drawings, training, commissioning and deployment capabilities.

DiTeSt Optical Switches SO-N Series
The SO-N Series is designed to extend the monitoring capabilities of the DITEST measuring unit by adding multiple measurement channels to the reading unit. The SO-N Series is used for the monitoring of large and complex infrastructures where multiple measuring channels are required.