FibroLaser uses the characteristics of glass fibre cables for a highly precise temperature sensor and fire localization system. The criteria that will ultimately sound an alarm can be individually defined – based on on-site conditions.
The principle – temperature sensoring with light reflection
The system components of FibroLaser are the control unit and the attached glass fibre sensor cable. The control unit sends a laser beam through the cable. The glass fibre reflects this light and scatters it back – split into “Stokes” and ”Anti-Stokes” signals (Raman Effect). While Stokes signals have nearly the same signal strength at all temperatures, this value rises proportionally to the temperature with Anti-Stokes signals. Thanks to semiconductor laser diodes, FibroLaser can measure these effects in glass fibres up to 10 km in length. By comparing Stokes and Anti-Stokes the control unit now reliably calculates the temperature and position of a heat source. Through optimization of temporal and local resolution, even slight temperature changes – such as an increase of a few degrees Celsius per minute – can be reliably and exactly displayed.
Quick, reliable heat detection and fire localization by determining the light reflection
Partitioning the sensor cable in up to 1,000 zones
Individually configurable alarm parameter to adapt to on-site conditions