equivalent volume diameter的意思|示意

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\\"Equivalent Volume Diameter\\" is the measure of the diameter of a particle with the same volume as the particle being measured. It is commonly used in particle size analysis, and is often abbreviated to EVD.

Equivalent Volume Diameter is used in analyzing the size of a particle and its associated properties, such as porosity and surface area. The EVD is determined by measuring the volume of a particle and then calculating the diameter of a sphere that has the same volume. EVD is commonly used in pharmaceutical applications, such as material characterization, aerosol delivery of drugs, and powder flow characterization.

In particle size analysis, EVD is a useful metric for determining the size and shape of a particle, as well as other properties related to it. This is because the measurement of the equivalent volume diameter allows the particle to be compared to a sphere of the same volume, which is a useful reference. For example, if the analysis is focused on the porosity of a particle, then the EVD of the particle can be used to determine how much air is trapped in its pores.

In addition to particle size analysis, EVD is also used in chemical engineering and industrial applications, such as sizing chemical reactors, pipes and filters. It is also used in the characterization of aerosol particles and particulate matter, such as the measurement of particle size distribution.

Overall, equivalent volume diameter is an important measure for understanding the size and properties of particles. It is used in numerous applications and provides a useful measure for determining the size and shape of particles.