ARTICLE DETAILS

There is a basic law of high flow laser dust particle counter

日期:2020-09-24 12:04
浏览次数:23
摘要:High flow laser dust particle counter USES all semiconductor laser and semiconductor photosensitive diode receiver to ensure the stability of light source and accuracy of signal receiver. It greatly reduces the stray light in the scattering cavity and improves the SNR of the sensor. Large flow laser dust particle counter USES LCD display and control, display data clearly, easy to operate. The accuracy of sampling flow is ensured by using imported electronic flow sensor. Large flow laser dust par
High flow laser dust particle counter USES all semiconductor laser and semiconductor photosensitive diode receiver to ensure the stability of light source and accuracy of signal receiver. It greatly reduces the stray light in the scattering cavity and improves the SNR of the sensor. Large flow laser dust particle counter USES LCD display and control, display data clearly, easy to operate. The accuracy of sampling flow is ensured by using imported electronic flow sensor. Large flow laser dust particle counter can automatically judge various purification levels according to the standards selected by customers. The product is widely used in medical, pharmaceutical, electronic, chemical, optical, food, cosmetics, biological products, aerospace and various detection institutions as dust particle detection.



Light scatters particles in the air. This phenomenon is called light scattering. Light scattering is related to particle size, wavelength of light wave, refractive index of particle and absorption characteristics of particle to light. However, as far as scattering light intensity and particle size are concerned, there is a basic rule of large flow laser dust particle counter, that is, the intensity of scattering light increases with the increase of particle surface area. In this way, the particle size can be deduced by measuring the intensity of scattered light, which is the basic principle of high flow laser dust particle counter.



Large flow laser dust particle counter imported diode receiver, stable light source, strong signal, hd display, easy to operate, widely used.



The light from the light source is focused on the measurement cavity by the lens group. When each particle in the air passes through the measurement cavity rapidly, it scatters the incident light once, forming an optical pulse signal. This optical signal is sent to the optical detector through lens group 2, which is converted into electrical pulse signal in proportion, and then through amplification and discrimination of electronic circuit of laser dust particle counter with large flow, the signal needed is picked out and displayed through the counting system.