Dust free purification workshopDust particle counterIt is an instrument used to measure the quantity and particle size distribution of dust particles in the air of a clean workshop.

Dust particle counters are mainly used in industries such as medicine, electronics, precision machinery, color tube manufacturing, microbiology, etc., to monitor the purification effect and cleanliness level of workbenches, purification rooms, and purification workshops of various cleanliness levels to ensure product quality.

Dust particle counterworking principle:

Particles in the air will emit scattering phenomena under the irradiation of light, which is called light scattering. Light scattering is related to factors such as the volume of particles, the length of light waves, the refractive index of particles, and the absorption characteristics of particles towards light. The intensity of scattered light from particles increases with the surface area of the particles.

Dust particle counter workflow:

Firstly, the vacuum pump system in the cleanroom allows the gas to be detected to pass through the particle counter laser head at a specified flow rate. The dust particles in the gas scatter the laser signal in the particle counter, causing the optical sensor to receive and generate a pulse information signal.

Then, the pulse signal is output and amplified, converted into a digital signal for processing, and compared with the particle signal to represent the comparison results with different parameters. The number of electrical pulses corresponds to the number of particles, and the amplitude of electrical pulses corresponds to the size of particles.

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