本文前面就已经说到有好多种测量粉尘浓度的方法，下面就再介绍一下会使用到

Speaking earlier in this article already has a good variety of methods to measure dust concentration, the following re-introduce the optics will be used to, of a total of two, not too much, respectively Yes Lambert - Beer law and Mie theory. The design of this time is going to use the principle of optical detection, this detection method should be said is relatively simple, but also very convenient, the error is very small, for us to operate. Lambert - Beer's law is stronger than the beam of light emerging through the measured medium, the dust concentration is determined based on the measurement. Then when the light through the material, it will produce scattered there will be other absorption of light becomes low light phenomenon will appear.

Earlier in this article has said that there are a number of methods to measure dust concentration, the following will be introduced to the optical principle stoic, a total of two, not much, respectively, Lambert-Bill's law and rice theory. This design this time intended to use the optical principle detection, this detection method should be said to be relatively simple, but also very convenient, the error is also very small, easy for us to operate. Lambert-Bill's Law determines the concentration of dust by measuring the ratio of light to appear after a beam of light passes through the medium under test. Then when light passes through the material, there will be scattering and other absorption, there will be the phenomenon of strong light weakening light.

As mentioned earlier in this paper, there are many ways to measure dust concentration. Next, we will introduce the optical principles that will be used. There are only two, not many, which are Lambert Beer law and meter theory. This design intends to use the optical principle detection this time, this detection method should be relatively simple, also very convenient, the error is very small, easy for us to operate. Lambert Beer's law is to determine the concentration of dust by measuring the light intensity ratio of a beam of light passing through the measured medium. So when there is light passing through the material, there will be scattering and other absorption, and the phenomenon of strong light becoming weak will appear.<br>