Faseroptische Temperatursensoren in einem Verteilten Rauchmeldesystem

Details

Veröffentlichungs-Nr.

EP3742138

Aktenzeichen

EP19212781

Anmeldetag

2. Dezember 2019

Veröffentlichung

24. Januar 2024

Erteilung

24. Januar 2024

Rechtsraum

EP

IPC

G01K1/02G01K11/32G08B17/107G01N15/06G01N15/14G01N33/00G01K11/3206G08B17/06G08B29/18// G01N15/00

Abstract

A smoke and temperature detection system includes a plurality of fiber optic cables terminating in a plurality of nodes positioned to monitor a fire or smoke condition at one or more protected spaces, and a temperature detection fiber optic cable having a plurality of fiber Bragg gratings arrayed along the temperature detection fiber optic cable. A control system is operably connected to the plurality of fiber optic cables and to the temperature detection fiber optic cable. The control system includes a first light sensitive device configured to receive a scattered light signal from the plurality of fiber optic cables, and a second light sensitive device configured to receive a reflected light signal from the fiber Bragg gratings. The control system is configured to detect a temperature at the fiber Bragg gratings based on one or more properties of the reflected light signal received at the second light sensitive device.

Anmelder

Firma

Kidde Technologies, Inc.

Land

🇺🇸 USA

Fachgebiete