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Infrared ultraviolet composite flame detector and detection method thereof

A flame detector and ultraviolet technology, used in fire alarms that rely on radiation, optical device exploration, etc., can solve problems such as inability to detect small signals, limited detection distance, false alarms, etc.

Active Publication Date: 2014-12-10
HUBEI JIEXUN PHOTOELECTRIC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Both of these two flame detectors have certain limitations: single infrared or single ultraviolet flame detectors have poor anti-interference ability, and are more likely to be affected by background light such as sunlight, heat sources, fluorescent lamps, and incandescent lamps to cause false alarms
Therefore, this type of flame detector cannot meet the requirements of rapid response to flames
In addition, the existing flame detectors mostly use linear amplification technology in the signal processing process, which cannot detect tiny signals. At the same time, the dynamic range is small, resulting in low sensitivity of flame detectors and limited detection distance.

Method used

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  • Infrared ultraviolet composite flame detector and detection method thereof
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  • Infrared ultraviolet composite flame detector and detection method thereof

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Embodiment Construction

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0016] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the It should not be construed as limiting the invention ...

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Abstract

The invention provides an infrared ultraviolet composite flame detector. A log amplifier is utilized to convert current from an ultraviolet photoelectric tube and an infrared photoelectric detector to enable the flame detector to detect tiny signals. A detection method of the flame detector can be further provided, and the tiny signals can be detected by utilizing the method to conduct flame detection.

Description

technical field [0001] The invention relates to the field of fire protection, in particular to an infrared-ultraviolet composite flame detector and a detection method thereof. Background technique [0002] Existing flame detectors are roughly divided into two types, one is a single infrared or single ultraviolet flame detector, and the other is an infrared-ultraviolet composite flame detector. Both of these two flame detectors have certain limitations: single infrared or single ultraviolet flame detectors have poor anti-interference ability, and are more likely to be affected by background light such as sunlight, heat sources, fluorescent lamps, and incandescent lamps to generate false alarms. Therefore, these flame detectors are only suitable for use in enclosed spaces with limited natural light. The traditional ultraviolet-infrared composite flame detector is limited by the use of ultraviolet photocells and has a long response time. Therefore, this type of flame detector...

Claims

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Application Information

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IPC IPC(8): G01V8/10G08B17/12
Inventor 谢永杰杨昕
Owner HUBEI JIEXUN PHOTOELECTRIC
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