FIBER-OPTICAL ALARM FOR FIRE ALERT SYSTEMS Russian patent published in 2017 - IPC G08B17/00 

FIELD: fire safety.

SUBSTANCE: device of a fiber-optic alarm device for systems of the notification on ignition is offered. The device includes a quartz optical fiber sensor enclosed in a stainless steel capillary, which is both an IR source, a multimode fiber, optical couplers, optical connectors, a radiation source, a two-spectral photodetector or a spectral ratio detector, an execution unit that generates the necessary Signals for the fire extinguishing system. In the case of the use of the multipoint control method, the two-spectral detector can be made both in the form of a matrix with many elements and in the form of a matrix of two elements.

EFFECT: reduced inertia, increased noise immunity.

3 cl, 3 dwg