Measurement method for air particle distribution through laser light scattering method, and apparatus thereof

Abstract

The invention relates to a measurement method for air particle distribution through a laser light scattering method, and an apparatus thereof. The apparatus is characterized in that: the apparatus comprises: an air pump with a measurement chamber and an air pipe; a laser arranged on an opening position of the air pipe and a side of the measurement chamber; a light trapping area arranged on the opening position of the air pipe and the other side inside the measurement chamber; a photoelectric detection sensor, wherein the photoelectric detection sensor is arranged on the opening position of the air pipe and a side inside the measurement chamber, and has a focus-focus lens; a microcomputer control device connected with the electrical signal output of the photoelectric detection sensor; and a display screen. The electrical signal input of the display screen is connected with the electrical signal output of the microcomputer control device. The photoelectric detection sensor adopts a high-sensitivity avalanche diode. Compared to the prior art, the apparatus provided by the present invention has advantages of real availability, long time and real-time measurement, direct acquisition of measurement results, realizations of functions of data storage, data output, automatic measurement, alarm and the like, small size, light weight, convenient operation, high stability and high reliability.

Description

technical field [0001] The invention relates to a method and a device for measuring air particle distribution. Background technique [0002] With the rapid development of the national economy, dust pollution is becoming more and more serious. At present, my country's air is polluted by soot, and the total suspended particulate matter (TSP) in the air of many cities has remained high for a long time, which is far from the air quality standard given by the World Health Organization. Dust is extremely harmful to humans, especially small-sized particles, because small-sized particles can float in the atmosphere for a long time, it is difficult to settle to the ground, and it is easy to enter the human respiratory tract, and the smaller the particle size, the lower the settlement position in the human respiratory tract The deeper it goes, the greater the danger. Therefore, the measurement of dust concentration is of great significance in the field of environmental protection, ...

AI Technical Summary

Problems solved by technology

Although the measurement based on the sampling method is easy to implement, it is not easy to carry out real-time measurement in theory; the dust concentration measurement is carried out by using the principle of light scattering. Data output, automatic measurement, communication and other functions, small size, light weight, easy operation, high stability, and high reliability are also obvious advantages of this type of instrument, but so far, there is no reliable, practical and practical The device uses the above principles

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