Principle of the Optical Strand



Optical Strand

 

Fibre Optics Monitoring with OSMOS Optical Strand (Strain Sensor)

OSMOS expertise is possible as a result of its unique technology - the Optical Strand. Positioned where phenomena occur, it has a unique capacity for collecting data and is accurate down to the nearest micron. The unique OSMOS process, based on the principle of the modulation of light intensity by measuring analog attenuation, ensures the instantaneous response of the sensor. The physical principle applied consists in detecting the changes in the transmission properties due to the transformation of the absorption ratios, emission ratios and light refraction. By using light as the sole vector for collecting and transmitting information, the OSMOS sensors preserve their stability over time and are insensitive to electromagnetic effects.

 

Static measurement

Static data are scanned at a rate of 100 Hz. An average value is formed from these individual values over a configured measurement interval and saved in a memory with a depth of 300 locations. The static interval can range from 100 seconds to one day.

 

Dynamic measurement

A dynamic threshold value is specified by default for the system for dynamic measurements. If a measured value exceeds this dynamic threshold value, the raw measurement values before and after the event are saved in a file.