Intelligent Distributed Acoustic Sensor (IDAS)
Listen at every point
The IDAS measures the true acoustic field every 1m over up to 50km of sensing fibre.
It does this by sending an optical signal into the fibre and looking at the naturally
occurring reflections that are scattered back all along the glass. By analysing these
reflections, and measuring the time between the laser pulse being launched and the signal
being received, the IDAS can measure the acoustic signal at all points along the fibre.
The IDAS measures from one end of a standard single, standard telecoms fibre – there are
no special components, such as fibre gratings, in the optical path. It can even be used
on existing cables, although custom cables will give a better response.
Sounds impossible? Silixa’s founders have been at the forefront of distributed fibre sensor
development for many years and are proud to have brought the technology to a new level
with the Silixa IDAS.
More details...