Patent ID: 8959985
Filing Date: 2015-02-24
Classification: G01N

Abstract:
1. A microparticle detecting apparatus, comprising: at least one detection unit, each of which comprises: a first sieve having at least one first mesh; a separator stacked on one side of the first sieve and having a separator hole; a second sieve stacked on one side of the separator and having a plurality of second meshes, wherein the diameter of the second meshes is smaller than that of the first mesh, and the first mesh and the second meshes are misaligned with each other in a vertical direction of the first and second sieves; and at least one sensor aligned with the first mesh or the second meshes, and detecting microparticles falling into the first mesh or passing through the second meshes; wherein the at least one sensor comprises at least one second sensor, the second sensor is mounted on one side of the second sieve opposite the first mesh, and the diameter of the second sensor is greater than that of the first mesh.