KontrollVahend ja Tehnika (KVT) OÜ
Exclusive representative
Hottinger Baldwin Messtechnik GmbH, Germany
+372 6006190
+372 6006680


Products

Weldable Optical Strain Gauge OL-W

Special features

  • Optical strain gauge, based on fiber Bragg grating
  • Installation by spot welding method
  • Application to curved surfaces possible
  • High robustness of Bragg signal against mechanical disturbances
  • Insensitive to electromagnetic interferences
  • Application in Ex-areas possible

Construction

OptiMet-OMF glass fiber with Bragg grating installed on stainless steel with X120 adhesive

Core diameter of glass fiber, ca.

μm

6

Diameter of cladding, ca.

μm

125

Outer diameter of coating, ca.

μm

195

Diameter of jacket, ca.

mm

1.5

Thickness steel plate (material X8Cr17 , 1.4016)

mm

0.1

Dimensions

mm

60±0.1

Length

Width

mm

12±0.1

Height

mm

2.5±0.3

Connector

FC/APC

Available Bragg wavelengths

nm

1520,1525,1530,1535,1540,1545,1550,1555,1560,

1565,1570,1575, 1580

Tolerance of Bragg wavelength

nm

±1

k factor

0.76

k factor tolerance

%

±3

Maximal reflectivity

%

15

Cross sensitivity

%

0

Reference temperature

°C

23

Application temperature

°C

-40…+100

Storage temperature

°C

-40…+100

Thermal cross sensitivity (TCS)

Thermal contribution of the sensor to strain signal

μm/m/°C

7.5

Tolerance of thermal cross sensitivity (TCS)

μm/m/°C

±1

Maximal Strain at reference temperature

μm/m

10,000 (1%)

Strain in positive direction

Strain in negative direction

μm/m

10,000 (1%)

Minimal bending radius at room temperature

cm

30

Bonding method

Spot welding method

Strain-related restoring force

N (lbf)

1, 000 µm/m

< 400 (<90)

Weldable Optical Strain Gauge OL-W - technical parameters PDF, 0.07 Kb