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concrete steel reinforcement bar FBG strain sensor


product description:

CRD-rebar is a Fibre Bragg Grating sensor mounted on the steel reinforcement bar of interest. The sensor can be installed both before the rebar placement or on already placed rebars in the construction site. After the concrete has cured, the CRD-rebar sensor measures the reinforcement bar's strain.

technical specifications:

sensor mount specifications:
mount material: concrete reinforcement bar (steel)
mount dimensions: all rebar sizes
means of installation: attached on the reinforcement bar
either before or after its placement
connectivity: custom length optical fibre cable
with connectors or continuous
(two cables: front and back)
sensor specifications:
sensor type: Fibre Bragg Grating
sensor resolution: 1μstrain
sensor accuracy: 5μstrain
sensor range: 4000μstrain
maximum strain: 9000μstrain
reflected wavelength range: 1525nm - 1570nm
operating temperature range: -10°C - +100°C
optical fibre specifications:
fibre type: single mode SMF-28
fibre diameter: ∅9/125μm
fibre cable type: plain or steel armored cable
fibre cable diameter: ∅3mm
connector type: FC/APC

photo gallery:

typical CRD-rebar FBG sensor
typical CRD-rebar FBG sensor
CRD-rebar FBG sensor installation on a beam's rebar
CRD-rebar FBG sensor installation on a beam's rebar

Contact Information

+30 210 6519502

Mobile: +30 6906851736

Office Hours

9:00 to 17:00
Monday to Friday

Postal Adress

5, Nevrokopiou Str. Papagos, 15669

Athens - Attiki, Greece

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