Anchor Strain Cable ASC-01

Anchor Strain Cable ASC-01

 

The fiber optic Anchor Strain Chain ASC-01 contains different strain segments in series. The sensor chain has a small diameter and is designed to become embedded inside structures (e.g. concrete, grout, plaster, …).

Each strain segment contains a single strain sensor in between two anchoring points. A relative displacement between the two anchor points is transferred into a change in the strain of the segment. The Anchor Strain Chain ASC-01 can be customized to the needs of the application i.e. the number of segments and the segment length can be chosen. The standard length of a segment ranges from 0.5 m to 5 meters. The sensor has a connector at both ends in order to make series  configurations possible.  

Features

  • Chain of strain sensors that can be directly embedded in grout or concrete.
  • Measurement of complex strain distributions with a single optical cable.
  • Detection of strain changes over base lengths up to 5 meters.
  • Monitoring compression as well as tension.
  • The displacement can be derived from the distance between the anchoring points.

Technical parameters

Parameter

Value

Strain resolution

  0.85 µε

Strain precision

1.7 µε

Strain range

5000 µε

Temperature range

-20 °C to +60 °C

Gage lengths

0.5 m to 5 m

Number of segments

up to 10

Tube diameter

4 mm

Tube material

polyamide

Fixation type

anchor embedding

Anchor material

SS316

Pigtail diameter

3 mm

Pigtail leng th

1.5 m

Pigtail material

LDPE

Connector type

FC/APC

Applications

  • Monitoring of strain distributions in reinforcement bars and anchors
  • Displacement monitoring in concrete walls, tunnels, boreholes, …
  • Crack and fissure detection in concrete structures