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PM2.5 concentration detection method and detection device

A technology of concentration detection and concentration value, which is applied in the direction of measuring devices, suspension and porous material analysis, instruments, etc., can solve the problems of inability to collect air quality data and is not suitable for long-term detection work, and achieve accurate and fast detection and detection The effect of fast time and accurate test results

Pending Publication Date: 2019-08-16
TAIZHOU SAILING MOLD & PLASTIC TECH
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Problems solved by technology

[0004] In the above structure, the operation of each device needs to manually press the function button to confirm the normal operation of the device, which is not suitable for long-term detection work, and cannot collect long-term air quality data

Method used

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  • PM2.5 concentration detection method and detection device
  • PM2.5 concentration detection method and detection device
  • PM2.5 concentration detection method and detection device

Examples

Experimental program
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Embodiment Construction

[0042] The specific embodiments described herein are merely illustrative of the spirit of the invention.

[0043] The PM2.5 concentration detection method comprises the following steps:

[0044] Step 1, sampling:

[0045] like Figure 6 and Figure 7 As shown, the suction force generated after the fan 2 is running sucks the air into the air duct base 1, and samples the air in a certain proportion;

[0046] Step two, irradiation:

[0047] like Figure 6 and Figure 7 As shown, the laser emitter 40 starts to emit light beams to the sampled air, so that the dust in the sampled air produces light scattering;

[0048] Step three, detect and collect data:

[0049] like figure 1 As shown, the photoelectric converter 5 periodically collects the scattered light beam and converts it into a pulse signal, collects once in each cycle to form a pulse signal in an interval, and then sends the pulse signal to the micro-processing system module 6, and the micro-processing system module...

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Abstract

The invention provides a PM2.5 concentration detection method and detection device, and belongs to the field of measurement tests. The PM2.5 concentration detection device comprises an upper shell, alower shell, a PCBA board fixed in the lower shell and a data processing module capable of integrating dust data; the device is characterized in that an air flue module capable of sucking dust, a signal conversion module capable of converting the number of dust particles into digital signals, and a micro-processing system module capable of collecting data are arranged on the PCBA board; and the micro-processing system module can transmit the collected data to the data processing module for processing. The device has the advantages that the concentration of PM2.5 in air can be accurately and rapidly detected.

Description

technical field [0001] The invention belongs to the field of measurement and testing, and relates to an environmental detection technology, in particular to a PM2.5 concentration detection method and a detection device thereof. Background technique [0002] With the rapid development of industry, factories and other manufacturing enterprises inevitably emit waste gas into the atmosphere, causing air pollution and damaging human health. [0003] In the Chinese patent document [authorized announcement number: CN20151026557] a PM2.5 detection device and detection method, including a detection part and a control part: the detection part includes a dust blower, the dust blower is connected to the air inlet, and the upper end of the dust blower is provided with a filter device , a detection box is installed at the lower end of the dust blower, and a laser beam sensor and a photoelectric conversion tube are installed in the detection box. The laser beam sensor and the signal tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06G01N33/00
CPCG01N15/06G01N33/007G01N15/075
Inventor 黄伟军
Owner TAIZHOU SAILING MOLD & PLASTIC TECH
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