The ID-2-3 is designed for measurement of optical fiber and cable elongation/strain under mechanical and/or temperature test.

The phase shift method is used (IEC 60793-1-22).

Optical fiber elongation/strain is measured in absolute and relative units (mm, %, ns).

The ID-2-3 has four channels: three measurement channels and a reference one.

The ID-2-3B has seven channels: six measurement channels and a reference one.

The ID-2-3 operating control and data processing are provided by a PC (software screenshot).

Software allows presenting graphically changes in the fiber length from the applied tensile force to the fiber, the time interval, temperature or elongation of the optical cable.

The changes of the refractive index of the optical fiber due to the applied force are taken into account.

Measurement results are automatically fixed via a timer or manually.