Domestic dust particle counters need to break the technical bottleneck before they can reach a higher level

[Pharmaceutical Network Technical Article] Dust particle counter is an instrument for testing the particle size and distribution of air dust particles.
It has many advantages such as fast detection speed, wide dynamic dispersion, and no human influence.
It is currently widely used in pharmaceutical workshops , semiconductor, optical or precision machining, plastics, painting, hospitals, environmental protection, inspection institutes and other production enterprises and scientific research departments
.

In the pharmaceutical industry, drugs are special commodities, and it is necessary to strictly control the cleanliness of the environment to meet relevant standards and ensure product quality
.

The function of the dust particle counter is to monitor and detect the purification effect and cleanliness level of various cleanliness levels of workbenches, cleanrooms, and cleanrooms
.

Specifically, a dust particle counter is an instrument used to measure the number and particle size distribution of dust particles per unit volume in a clean environment, which can provide a basis for the evaluation of air cleanliness
.

The basic principle is that the detection laser of the sensor is scattered by the dust particles and is received by the photosensitive element to generate a pulse signal.
The pulse signal is output and amplified, and then digital signal processing is performed.
parameters are shown
.

The instrument's measurement parameter setting, measurement result display, key press, timing, printing, time, date, data storage, etc.
are all controlled and realized by the built-in microcomputer.
The instrument can simultaneously display the temperature and humidity of the environment and monitor and report the working status of the laser particle sensor
.

 　　In recent years, with the development of the pharmaceutical industry and the stricter drug regulation, the application of dust particle counters has also been deepened.
At the same time, users have also put forward higher requirements for the detection accuracy, stability, and life of the equipment
.

In this context, new detection technologies and new products are in urgent need of research and development
.

 　　It is understood that the light source, as a key component of the dust particle counter, has a great influence on the performance of the instrument
.

The light source requires high stability, long life, and no interference
.

The laser dust particle counter is a dust particle counter that has appeared in recent years, and its light source is divided into two types: ordinary light source and laser light source
.

Due to the good monochromaticity of the laser and the stable light energy concentration, the sensor of the laser dust particle counter using the laser light source has a high signal-to-noise ratio and is widely used in the pharmaceutical industry
.

 　　In order to better serve the pharmaceutical industry and help pharmaceutical and other companies detect dust particles and improve cleanliness, some equipment manufacturers are also making efforts to upgrade equipment using laser technology
.

For example, the dust particle counter of some manufacturers adopts semiconductor laser light source, high brightness digital tube display, small size, light weight, high detection accuracy, simple and clear function operation, microprocessor control, can store and print measurement results, and automatically determine Purification level, testing clean environment is very convenient
.

"This counter can be used in medicine, electronics, precision machinery, color tube manufacturing, microorganisms and other industries to monitor the purification effect and cleanliness of workbenches, clean rooms and purification workshops of various cleanliness levels to ensure product quality.
quality
.

" The manufacturer introduced
.

 　　It is worth mentioning that currently in the domestic dust particle counter market, high-end equipment is basically imported, such as the United States, Japan, etc.
, while domestic dust particle counters basically need to rely on imported technologies, such as imported electronic flow sensors, imported Semiconductor laser tubes, semiconductor photosensitive receiver tubes, etc.
Therefore, in the face of the considerable prospects of dust particle counters, if domestic dust particle counters can be made domestically, it will undoubtedly help China's analysis equipment to a higher level
.