[China Instrument Network Instrument R&D] A few days ago, the optical direct reading differential detection method (project number: KJ175958) and the new dust concentration measurement instrument verification standard device (project number: KJ175927) declared by the Metrology Center of Xuzhou, Jiangsu, passed the province The approval of the Bureau of Quality Supervision has entered the implementation stage. The next step will be to carry out specific project work according to the requirements of the Provincial Quality Supervision Bureau.
Dust concentration meter, picture from the network, invaded.
The optical direct reading differential correction test method mainly adopts an optical direct reading method to directly detect the change of the liquid crystal display, quickly and conveniently perform the verification of the daily differential of the quartz electronic stopwatch, and can be used for stopwatch verification, and finally developed for measurement. The electronic stopwatch test equipment replaces the electromagnetic induction method used in the previous differential calibrator to solve the problems of easy interference, inconvenient operation, high cost of the instrument, extended detection range of the time interval measuring instrument, and reduction of the cost of related testing equipment. .
The new dust concentration meter measurement verification standard device project aims to develop a dust dust emission device that can be used as a measurement standard, and aims to fill the gaps in the country that do not have a molding dust tester. This type of dust measurement instrument is widely used in environmental monitoring and mines. In the prevention of occupational diseases, the accuracy of measurement results is of great significance for environmental protection and safety protection. In addition, the dust evaluation system developed during the project development process can provide technical support for relevant research.
(Original title: Xuzhou Metrology Center approved two provincial science and technology projects
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