How much stretching can a standard fiber cable withstand without affecting distributed measurements?
A standard optical fiber cable can typically withstand an elongation of 1% to 2% (10,000 to 20,000 microstrain, με) before irreversible damage or breakage occurs. However, for precise and reliable distributed strain measurements, particularly for long-term stability and accuracy, it is generally recommended to operate within a more conservative range, typically up to 10,000 με (1%). Exceeding these limits can compromise the integrity of the optical fiber and the sensing elements, potentially affecting measurement accuracy or leading to sensor failure.
For applications requiring robust strain measurement, OFSCN offers various Fiber Bragg Grating (FBG) strain sensors designed to operate reliably within these ranges, with a default strain range of ≥10,000 με. These sensors are often packaged to enhance protection and ensure stable performance in challenging environments.
Below is an example of an OFSCN FBG strain sensor:
You can find more detailed technical parameters on our website:
OFSCN® Fiber Bragg Grating Strain Sensors
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