High-concentration particle counting method by using space division and time correlation
A time-correlated and particle counting technology, which is applied in the analysis of materials, individual particle analysis, particle and sedimentation analysis, etc., can solve the problems of counting accuracy drop, signal overlap, pulse superposition, etc., and achieve counting error reduction and missed detection probability. Effect
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[0036] Such as figure 1 As shown, a schematic diagram of the working principle of a space-divided and time-dependent high-concentration particle counter. Its structure includes a laser source 1, an aspheric mirror 2, a spherical mirror 3, a photosensitive area 4, a light trap 5, a spatial array structure detector 6, a front Amplifier 7, time-dependent comparison circuit 8, pneumatic system 9 and so on. The direction of the light path, the direction of the gas path, and the direction of the detector collecting light signals are perpendicular to each other, and a cuboid sensor is inserted in the three-way intersection for interaction. The laser emitted by the laser source passes through the aspheric mirror to form a photosensitive area. The particles to be measured enter the photosensitive area at a uniform speed through the air pump system and then scatter light. The scattered light signals generated by the particles in different spaces are collected by different ...
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