 Posted: Mon 3:20, 13 Dec 2010 Post subject: ugg boots billig Improve the measurement accuracy |
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| Improve the measurement accuracy of the computer the way electronic belt
Under load and the belt tension will be obvious deformation, after processing, the belt weighing a total of four measurement techniques ■ connecting rod 24 all use 20mm diameter steel rod after the big box enhances the intensity scale . Pull the main lever arms while the three ropes material is also directly affect the weighing accuracy, the first wife is from the manufacturers for the use of domestic materials, the use of a period of time after the deformation appears to be stretched and pulled off twice, Later, all the four ropes electronic belt use ropes made imported quality materials, and after re-adjustment of the boom all the ropes at right angles to the main lever, which in turn better the overall performance improved electronic belt scale, and finally monthly physical calibration, the average error before the school dropped to 0.365 percent from 0.653 percent. After the error all the blame fell to 02% less. After rectification of the three stages of four, four electronic belt weighing reached high precision, long-term objective of stability in the past two years has been in reliable operation, the plant coal into the plant, accurate measurement of coal into the furnace to provide a strong guarantee . ■ (on the next page 20), the formation of a de facto secondary transmission. Second, the error distribution requirements are not rational. Regulations Article 8, the indication of the block than the tolerance is ± 1.0%, while the work called for in Article 7.4 of the benchmark show the value of tolerance for ± 1.0% which is obviously not achieved by Comparison of WI and W2 we can see that the work of reference to make Brinell hardness machine error to ± 1.0% Brinell hardness requirements of the work only to improve the accuracy of base machine, reducing errors caused by experimental conditions and improve the indentation measurement Accuracy is no longer a great deal, only greatly improve the accuracy of the block than the (strictly limited to its uniformity, reducing the error indication to improve stability, etc.) to enable the work to achieve precision reference machine. However, to improve the accuracy of the block than it is not easy, it is organized by the lattice of the block than the consistency, uniformity of decision, and materials,ugg boots billig, processing technology, heat treatment, and many other countries also affected by claims on consolidated basis hardness error (total uncertainty) limit, this is not a department to solve the problem. A more realistic solution is to abolish the existing test procedures using the hardness of the block than the revised terms of reference work, reference work to eliminate the introduction of error in the national benchmarks, secondary standard, the work of the same level between baseline comparison,ugg milano, the same time, strict control other error components, in order to achieve the required accuracy at all levels or a reasonable allocation of the integrated error, the delivery system rationalization. 6 Conclusion These are our work, we study some of the knowledge and ideas, hoping to interact with peer value transfer Brinell hardness of solving some problems exist, the better for scientific experiments and industrial services. ■ References [1] 304 series hardness of the defense industry measurement site measurement and hardness. 1979 [2] Institute of Metrology and hardness values measured force manual Science Press. 1980 [3] JJC147-83 second-class standard Brinell hardness test blocks of order [4JJcl47-91 standard Brinell hardness test blocks of order, \],[f spoon base standard known book encyclopedia. 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