FIELD: physics.
SUBSTANCE: proposed device of a linear fibre-optic signaling device for fire alert systems includes a two-spectral detector, a radiation source for monitoring the state of the optical fibre, a connecting optical fibre, and a sensitive element made in the form of a long segment of metallized quartz optical fibre (100-1000 mcm in diameter), the thickness of the optical envelope is 0.05-0.1 of the diameter of the optical fibre core, in which the metal coating acts as a source of IR radiation ("black body").
EFFECT: ability to continuously monitor the temperature in the protected compartment, flexible control of thresholds, low inertia, resistance to aggressive external environment, high operating temperature.
4 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FIBER-OPTICAL ALARM FOR FIRE ALERT SYSTEMS | 2016 |
|
RU2639069C2 |
| FIBRE-OPTIC LINEAR FIRE ALARM | 2011 |
|
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| FIBER-OPTIC TEMPERATURE SENSOR | 0 |
|
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|
RU2688596C1 |
