A flame detector is a musical instrument which can be used as something for fire prevention. It detects the clear presence of an open flame and produces a visual or auditory warning. They are extremely useful in factories which deal with hazardous materials and are slowly starting to become more popular in houses as well. If you are looking to buy a flame detector for your house or business, you ought to be alert to the different possibilities to you. This helps you make a more informed decision.
Most flame detectors which are presently available detect flames by using methods like infrared and ultraviolet spectroscopy and visual flame imaging. The flame produced by the combustion of specific materials produces waves at specific wavelengths. The analysis of the wavelengths in an area helps the detector distinguish between dangerous fires and false alarms.
Here is a go through the various kinds of flame detectors.
Ultra Violet Detectors
These flame detectors react to waves in the UV spectrum. They are extremely sensitive and react quickly at short ranges. Because they are sensitive to other sources of waves like lighting, halogen lamps, arc welders, etc. they're not found in outdoor settings. Their sensitivity may also be affected by the clear presence of thick and soot smoke.
UV/IR Detectors
When an infrared (IR) device is attached with a UV sensor, it makes a detector which can be sensitive to both bands of the spectrum. This increases the effectiveness of the detector and works at moderate speeds over a bigger distance Flame Detectors. It's ideal for both indoor and outdoor uses as well. However, just as in UV detectors, their efficiency is affected by the clear presence of thick smoke.
Multi-spectrum infrared detector
The multi-spectrum IR flame detector uses multiple IR regions to greatly help it differentiate between flame regions and non-flame backgrounds. They are well suited to areas which have smoky fires. They are effective within a selection of about 200 feet and just work at a reasonable speed and are ideal for both indoor and outdoor use. In addition they exhibit a high level of immunity to most hot objects in industrial areas such as for instance welding, sunlight, lightning, etc.
Visual flame detectors
These detectors use charged couple device (CCD) sensors commonly found in closed circuit TV cameras, alongside special algorithms to detect flames. The algorithms have the ability to process a live video feed and analyze the design and progression of a flame to distinguish between various sources. Unlike other detectors, they're not dependent on the intensity of the fire or the sort of waves it produces. Therefore, they're found in factories to distinguish between an unintended fire and an intentional, process-related fire. These detectors cannot be used to detect flames which are invisible to the attention, such as for instance hydrogen fires. Their efficiency can be greatly affected by smoke.