Dust environment simulator and calibration method for dust concentration measuring instrument by using same
An environmental simulation device, a technology of dust concentration, which is applied in measurement devices, scientific instruments, analysis of suspensions and porous materials, etc., can solve the problems of difficulty in ensuring the uniformity of dust concentration, inconsistent concentration, affecting the accuracy of dust concentration measuring instruments, etc. Achieve the effect of improving uniformity, concentration and uniformity
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[0041] The present invention will be further described in detail below through specific embodiments.
[0042] Such as figure 1 , 2 , 3, a dust environment simulation device, including a dust generating device 2, a simulation chamber 1 and a test support 6. The simulation chamber 1 includes a cylindrical mixing section 1 from top to bottom, a closed end Concentration section 12, flared diffusion section 13 at the lower end, cylindrical test section 14; the mixing section 1, concentration section 12, diffusion section 13, and test section 14 are connected vertically and sequentially, and the lower end of the concentration section 12 is closed, thus The diameter of the upper port is larger than the diameter of the lower port, so that the volume is deformed, the dust is concentrated, and the horizontal distribution of the dust is changed; the mixing section 1 is provided with an air inlet, and the direction of the air inlet is tangent to the inner wall of the mixing section 1. The bo...
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