www.public4you.fora.pl

90nike5657fv

Prestressing hydraulic jacks used in the construction equipment calibration uncertainty assessment

No error symbol _ size () half-width of the distribution factor a. () U. Or s (%) lO. 303O. 15O. 0526.0033.00llO031.02l_024R5.002.5Oll451. DOO. 5OO. 296 & O. 310.15O. W 09 units into the uncertainty of the relative expanded uncertainty of a 2.06 w 2w a disability of a relative expanded uncertainty of 4.11 W ± 6.17 pairs 15MPa a 3Wd point error symbol number size () distribution factor half actually hut a,[link widoczny dla zalogowanych], () u. Or s. () 1ad0.3030.150. O524.0032 +000.6731.021. O24R3.331.670.9650670.330. 】 960.210.100.06 Taiwan into uncertainty w = l_57 relative expanded uncertainty of ± 3.14 w a 2wd a relative expanded uncertainty Wo a 3Wa a disability. 719 596 Table 3 continued 20MPa point error symbol number size () half-width of the distribution factor a, () u. Or s () l0.3030.15O. 0523. O031.500.5O31. O2I. 024R2.5Ol_250.725aO. 50 plant iO. 25O1460.15 the 0.080.04 combined uncertainty wI. Relative expanded uncertainty of 36 W for a 2Wd = ± 2.72 relative expanded uncertainty of a stag W SW 4.08 pairs 25MPa point number who sign the size of the error () half-width of the distribution factor a. () U, or s. () 1O. 3030.150.052 Sapporo 2.403l_2O0.403l_02I. 024R2. O0. Plant il. OOO. 585O. 40O. 200. I26 chaos 0.12O. 060.04 combined uncertainty WI. Relative expanded uncertainty of 25 W = 2Wd = ± 2.50 relative expanded uncertainty W = 3Wt a disability 3.75 pairs 30MPa point error symbol number size () half-width of the distribution factor a-() u or () lO303O . 150.052,[link widoczny dla zalogowanych], such as 2. O031. O00.333l_02l_024R1.670.830.4858 【0.33. Factory i0.17O. 106B01O. Factory i0050.03 homes Qi uncertainty W = 1.19 relative expanded uncertainty W = 2Wj a relative expanded uncertainty ± 2.37 W = 3Wa a number who point error of 3.56 pairs of 35MPa symbol size () half-width of the distribution factor a, (%) or s. () L8a0.3030. I5O. 0521.710O. 860.293l_02I. 024RI. 430.7l0.4I80.29.0.140.086a0.1i0.010.03 combined uncertainty Qi W = ll15 w relative expanded uncertainty of a 2W = ± 2.29 relative expanded uncertainty of a 3Wd = ± W 3.44 To simplify the calculation, take the standard calculation of R a relative uncertainty of 3.0 s. Each calibration point on the calculation of uncertainty, we find that: ① the calibration results combined uncertainty W ... 3711.15,[link widoczny dla zalogowanych], Wa ~ a 3.71, that is: the biggest change in the range of measurement of 3.71, in line with norms the requirements of the provisions of ± 5.0, calibration results are reliable; ② When taking a coverage factor k 2, W obtained a relative expanded uncertainty ± 7.42 ~ 2.29, remove the pressure gauge in the measurement of segment 0 is invalid ~ 15MPa, got w ... a ± 3. -14; When taken for a coverage factor k 3, the relative expanded uncertainty of W obtained a disability l1.12 ~ 3.4,4, remove the pressure gauge in the measurement section of O ~ 15MPa invalid, got a-r-W 4.17, can meet the specification requirements of {③ ± 5 in the calibration results of the various uncertainty components, the pressure gauge the accuracy of the relative standard uncertainty of calibration results s, the three contributions to gauge resolution R max. The above three error sources are related to gauge the accuracy of the rating, while improving the accuracy of pressure gauges, after,, R values will decrease, combined uncertainty is conducive to the reduction and the improvement of precision. 3 Conclusion When using O. 3 strain dynamometer calibration of the hydraulic jack device when doing error analysis and synthesis method of uncertainty assessment is correct. Strain by 0.3 Dynamometer calibration device for hydraulic jacks,[link widoczny dla zalogowanych], the results are reliable, able to meet the specification requirements of ± 5. 97
More articles related to topics：

polo outlet online 预应力锚索应用于边坡防护工程_46

discount cosmetics mac 要重视工程项目的投标管理_76

polo outlet online 浅述“四车之机”改造采取的技术