This method of green laser pointer is very easy

The first article of green laser pointer means the first piece or the first several pieces
Laser particle size analyzer and its principle is introduced. The laser particle size analyzer instrument is based on the principle of light scattering measurement of the powder particle size, is a common particle size analyzer. Which is characterized by the measurement of wide dynamic range, measurement speed, ease of operation, and is particularly suitable for measuring particle size distribution of a wide range of powder and liquid droplets. Uniform particle size of powders, such as abrasive micronized to carefully selected. Laser Particle Size Analyzer integrates laser technology, modern photovoltaic technology, electronic technology, precision machinery and computer technology, with fast measurement speed, dynamic range, simple operation, good repeatability, etc., has become the world's most popular granularity test equipment. The laser particle size analyzer as a new type of particle size measurement instrument. However, not every owns the power meter of green laser pointer .
Already been widely used in powder processing and applications. It is characterized by speed, good reproducibility, good accuracy, easy to operate. Of great significance to improve product quality, reduce energy consumption. The principle of laser particle size analyzer. The laser particle size analyzer according to the particles make laser scattering test of the physical phenomenon of particle size distribution. Laser with monochromatic and highly directional, so will not hindered infinite space laser radiation to infinity, and in the communication process, there is little divergence phenomenon. Shown in Figure 1. Schematic diagram of the laser beam spread in the state without hindrance. Mie scattering theory suggests. This method of green laser pointer is very easy and convenient for the one.
When the beam encounters particles blocking part of the light scattering phenomenon occurs, the direction of propagation of the scattered light with the main direction of propagation of the beam to form an angle θ, and θ the angle of size and particle size, the larger particles, the scattering the smaller the angle θ of light; the smaller the particle, the greater the angle θ of the scattered light. Small angle (θ) the scattering light is caused by the large particles; scattering angle (θ1) light caused by small particles, as shown in Figure 2. Further study showed that the intensity of scattered light represents the number of particles of the particle size.