FFE has been awarded a UK patent for the ‘innovative new light cancellation technology’ used in its Fireray range of infrared beam smoke detectors.
The technology works by actively monitoring ambient light levels on the detector, and ‘subtracting’ them from the ‘real’ signal, reportedly allowing the detector ‘to work under the most difficult light conditions’, including sunlight, sodium lamps, and fluorescent lighting.
“It is no exaggeration to say that this technology is unique,” said FFE research engineer, Dr. Daniel Waldron. “No one else offers ambient light cancellation technology that allows the beam to cope with all manner of challenging light conditions, both natural and man-made. This means fewer false alarms and false readings.”
FFE claims that, by using infrared beams, Fireray beam detectors can identify smoke over much larger areas than ‘traditional’ fire detection devices. Usually wall-mounted at near-ceiling level, they transmit a beam of invisible infrared light across the space to be protected.
A receiver detects and measures the light, and can recognise smoke interference anywhere along the beam path, triggering the alarm signal when the pre-determined threshold is reached.
