Sensors And Sensing Systems

MSA-01 Mountable strain array sensor

Type: Multiple-gauge strain sensor

Application: Concrete or grout embeddable, surface mountable

Installation method: Mounting brackets – weldable, screwable

Pre-strain setup: At installation

Temperature compensation: Through external temperature sensor

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  • MSA-01 is a strain array sensor with variable number of FBG sensors (min = 1, max = custom) and various gauge lengths.
  • Effectively replacing numbers of individual sensors with multiple gauges in one-cable-array design.
  • Fully customizable in number of gauges and their individual lengths.
  • Strain profile in concrete and metal structures Borehole deformation.

Application note

MSA-01 with 1mm outer diameter needs approximately 30N per 1000µε and since the strain transfer is generated directly from the anchor points, a wavelength shift of 1,2pm will result in 1 µε.
The relationship between the length change and wavelength shift is linear, however, we recommend using the equation with coefficients from the calibration sheet.

Product Specification

Performance properties
Strain range
Accuracy (guaranteed)1)
<0.5% FS3)
Accuracy (typical)1)
<0.23% FS3)
Precision (guaranteed)2)
<0.25% FS3)
Precision (typical)2)
<0.15% FS3)
Temperature compensation External
Strain sensitivity 1.2pm/µε
Operating Temperature range
-20°C to +60°C
Ingress Protection rating
IP 67
Physical properties
Housing material
Stainless steel SS316 and PE
Anchoring distance
Adjustable parameter
Number of measuring sections4)
Up to 10
Dimensions (without cable)5)
Ø12 mm x L mm [Washer Ø24 mm]
Weight (without cable)
Cable type
3mm Dyneema reinforced cable
Cable length6) 1mtr
Cable Bend Radius (dynamic)
Cable Bend Radius (static)
Connector type7)
Mounting method Mounting brackets
Packaging Supplied on reel. Cardboard box with dimensions: 370x360x145mm
Quality Statement All sensors are 100% tested and calibrated at SYLEX The sensor is manufactured according to ISO 9001:2008 and ISO 14001:2004 The sensor is compliant with IEC 61757-1-1:2020 and IEC 61757:2018 .


  • 1) Accuracy is established for each individual sensor under laboratory conditions and it includes hysteresis, non-linearity and repeatability of the sensor.
  • 2) Precision is established on a batch basis and it includes hysteresis, non-linearity, repeatability and reproducibility of the sensor.
  • 3) FS: full scale range
  • 4) Number of measuring sections depends on customer’s requirement
  • 5) For further dimensions details see the product drawing
  • 6) Cable length is extendable on request
  • 7) Other connector types available on request

Related products

WCP-01 is a IP67 watertight connector protection for FC/APC connectors

Type: Mounting bracket

Installation: Glue, screw, spot welding

Material: Stainless steel

LCP-03 is an optional product modification for extending sensors cable lengths.

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