Dust detectors are mainly used to detect dust concentration in the environment. Currently, people's requirements for living, working and living environments are getting higher and higher, and the harm of production dust to the human body is becoming increasingly prominent. Its working principles are mainly light absorption, light scattering,
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rays, microcomputer laser and AC electrostatic induction. It is mainly applicable to various research institutions, meteorology, public health, industrial labor hygiene engineering, atmosphere pollution research, etc. Dust detectors are widely used in centers for disease control, mining and metallurgy, chemical manufacturing, health supervision, environmental monitoring, etc.
. There are mainly
methods for rapid detection instruments: light scattering method,
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ray method and microweight balance method, electrostatic induction method, and piezoelectric balance method.
. Microweight balance instruments are basically monopolized by a few American companies, with high prices and high maintenance fees.
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In addition to imported
manufacturers, X-ray instruments are produced by several domestic companies such as Tianhong and Xianhe.
. The instrument of electrostatic induction method is generally used to detect whether the bag is leaking after the bag dust collector.
. The use of the piezoelectric balance method is troublesome and there are few manufacturers.
. There are many foreign and domestic manufacturers of light scattering instruments. It is divided into ordinary light scattering and laser light scattering. Because the laser light scattering instrument has good repeatability and stability, it has completely replaced the ordinary light scattering method in Europe, the United States and Japan. If you choose a good manufacturer, you can achieve high cost performance. The quality of domestic laser method instruments varies greatly, so attention should be paid to choosing manufacturers with guaranteed quality.
. The main application areas of dust detector:
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Suitable for the determination of dust concentration at the production site of the labor department of industrial and mining enterprises
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Hygiene and epidemic prevention Monitoring of respirable particulate matter in public places
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Environmental protection monitoring department atmospheric dust detection, pollution source investigation
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Municipal smoke supervision
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Scientific research, filter material performance testing and other aspects of on-site testing
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On-site dust concentration measurement, exhaust dust concentration monitoring
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Pharmaceutical manufacturing Test