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A metal material Elongation Uncertainty of Measurement Results

Data. This efficient, safe, easy to query the data and print processing. Used inside the VB ADODC control and database to connect, with a record of DataGrid controls the display of the grid. (5) interface control module The module is mainly used to dynamically display changes each parameter, numbers and curves show the coexistence of dynamic graphics, real-time displays and historical curve curve similar to control configuration software are used in the data curve approach, the interface, clear and concise, visual effect is good. This method is worth learning from. (6) There are many other modules of the system auxiliary modules,ugg boots günstig, such as statements of the historical curve and the printing module, the standard Windows format, with the help of the module, and the operation of the system may be used as a magnifying glass tool module (for local amplification curve), calculators. 4. Conclusion The system is oil production for the problems encountered in the process,true religion jeans, improve the degree of automation and development field. It solves the logging process, high input, high-risk problems, improve efficiency of oil and gas field development. After the success of the system developed, the initial test in JiI East gas mining test result is good, then, through Xinjiang test Taxinan used in actual production, and achieved very good results. Therefore, the promotion of this system has a higher value. References [1] GreyPerry: TeachyourselfVisualBasic5in24hourySmsPublishing [21 have Meng Xiong, Wu Haihua. VB-based environmental control system for hydraulic experiments. Juice volume and test technology, 2002. No. 5 ● (on the next page 16) (2) calibration (Lf,) 2: Certificate micrometer accuracy of ± 0.01mm, that is evenly distributed, so \B component) degrees of freedom y (Lu) 2 = OO irrelevant because the two components, so the U (Lu) = \ \(L (,)/(\(A) ULU (A) = f (Of / aL 【,) 『.\(1) standard provides that \.2887 measurement and testing technology from lI 2003 ・ № .3 (B component) degrees of freedom: y (L0) l = ∞ (2) calibration (Lu) 2: Certificate of accuracy of vernier caliper test ± 0.02mm, that is uniform distribution, so \) Wink

= 0.2889 degrees of freedom y (Lr )):\the width of the sensitivity coefficient obtained L0 uncertainty components (A) (A) = f (af / aLo) 『.\Uncertainty about components of (A) because A revision of about 0.5%, the maximum deviation is generated ± 0.25%, that is the uniform distribution, so (A): 0.253 = 0.1443 (B component) degrees of freedom: y, = oo6. calculated combined uncertainty of the above components are not relevant,ugg italia, so the combined uncertainty for the (A) = √ u (A) + UL0 (A) + U, (A) = 1.3258 free degree: 7, ff: U = '(A )/(,( A) / y 【,) + .0 (A) / r (L0) + (A) / y,) = 217. Expanded uncertainty calculated check t distribution table, when y = 21, P = 95%,ugg boots billig, seven = 2.08 (A) = seven p ・ (A): 2.7577 based on whichever is greater not take the principle of small U ( A) = 38. Conclusion The above analysis has been based on metal elongation A = 34% ± 3%, the report of the expanded uncertainty of the coverage factor k: 2.08,ugg milano, confidence probability P = 95%. ● ■

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