Shulou(Shulou.com)11/24 Report--

CTOnews.com, March 14, CTOnews.com learned from the website of the State Administration of Market Supervision that the General Administration of Market Supervision recently approved the launch of the "linear angle reference device" newly developed and established by the Chinese Academy of Metrology, while abolishing the original "linear angle reference device".

According to the General Administration of Market Supervision, the line angle reference device is an important part of the national plane angle datum, which reproduces the plane angle values through circular raster lines. It provides a reference source with the highest accuracy for circular indexing devices such as dial, circular grating and angle encoder, and meets the measurement requirements of rotary positioning of CNC machine tools, flight attitude control of aerospace spacecraft and spatial orientation of surveying and mapping instruments. It plays a basic supporting role in precision machining, construction engineering, aerospace, frontier science and other fields. The developed manufacturing countries give priority to the development of linear angle measurement as the basic link of the industrial chain. Germany and Japan have established the international leading circular indexing device industry by virtue of their linear angle reference devices, which effectively supports the high-end development of their manufacturing industry.

According to reports, the newly established linear angle reference device is in the range of 0 °~ 360 °, the measuring step is better than 0.005 ", the sampling rate is six orders of magnitude higher than the original level (that is, 1 million times), and can realize the cross-scale measurement ability of macro and micro angles. it is equivalent to being able to observe a hair in any direction 1 km away with a telescope. The International comparison of key parameters of Line Angle (APMP.L-K3), organized by the Bureau of International Metrology, continuously measures 20,000 positioning points within the prescribed measurement range, and its technical ability reaches the international first echelon level, and the international mutual recognition of this value is obtained for the first time.

The General Administration of Market Supervision pointed out that the newly-built line angle reference device has realized the reproduction of the whole circle continuous ultra-high resolution force value, solved the precision evaluation problem faced by the upgrading of China's circular indexing device industry to high-end, and realized the domestic replacement for the core devices of circular indexing measurement and control of high-end CNC machine tools, industrial robots, aerospace measurement and control equipment and precision scientific instruments, and provided the source of measurement with international advanced level. It provides an effective measurement technical support for the high-end and intelligence of China's manufacturing industry.

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