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Fine particle sensor

A technology of fine particles and sensors, applied in the measurement of scattering characteristics, etc., can solve the problems of low efficiency, cumbersomeness, air humidity effect, etc., and achieve the effect of convenient use, high efficiency and small size

Inactive Publication Date: 2013-09-25
CHENGDU JAALEE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of on-site sampling and analysis to detect fine particles is too inefficient; some portable fine particle detectors on the market are cumbersome and inconvenient to carry. One; in addition, the detection is easily affected by air humidity
The current national standard method has many problems in practical application, such as expensive equipment, troublesome operation, time-consuming (long sampling time), laborious, etc., and it is difficult to achieve actual supervision and monitoring
At present, there is no sensor in China that can quickly detect the parameters of fine particles

Method used

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Embodiment Construction

[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] see figure 1 , a fine particle sensor, comprising an infrared emitting unit, a dust passing hole, and a photoelectric detection unit, characterized in that the infrared emitting unit is connected to the dust passing hole, and the dust passing hole is connected to the photoelectric detection unit.

[0012] The photodetection unit includes a photodetector and a signal conditioning circuit.

[0013] In a word, the above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the patent of the present invention.

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Abstract

The invention discloses a fine particle sensor, comprising an infrared unit, dust holes and a photoelectric detection unit, wherein the fine particle sensor is characterized in that the infrared emission unit is connected to the dust holes, and the dust holes are connected to the photoelectric detection unit. The photoelectric detection unit comprises photoelectric detector and a signal conditioning circuit. The method, compared with a traditional method for detecting the fine particles, has a much higher efficiency. After a sensor module is manufactured, without knowing a concrete method for detecting the fine particles, a designer, only by means of provided the relation between parameters of the fine particles and output voltage, can directly apply the fine particle sensor on exploitation of equipment relative to the detection of the fine particles. The sensor module is convenient for using, and has a characteristic of small volume. When detecting the parameters of the fine particles, the fine particle sensor is not affected by air humidity.

Description

technical field [0001] The invention relates to the technical field of fine particles, in particular to a fine particle sensor. Background technique [0002] When air pollution reaches a certain level, it will threaten people's body and mind. One of the important parameters for evaluating air quality is fine particulate matter, namely PM2.5. The traditional method of on-site sampling and analysis to detect fine particles is too inefficient; some portable fine particle detectors on the market are cumbersome and inconvenient to carry. One; in addition, the detection is easily affected by air humidity. The current national standard method has many problems in practical application, such as expensive equipment, troublesome operation, time-consuming (long sampling time), laborious, etc., and it is difficult to achieve actual supervision and monitoring. At present, there is no sensor in China that can quickly detect the parameters of fine particles. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/49
Inventor 不公告发明人
Owner CHENGDU JAALEE TECH