 Wysłany: Śro 18:14, 15 Gru 2010 Temat postu: ugg italia Hydrogen Concentration Measurement Tech |
|
| ,ugg italia
Hydrogen Concentration Measurement Technology 1995,stivali ugg, the smallest achievable residual unbalance is defined as: rotor balancing machine can reach the minimum amount of residual unbalance. It is a measure of the maximum balance balancing machine main indicators. In the wheel balancing machine for testing,ugg boots günstig, calibration and quality control,ed hardy clothing, we need to measure this value. How to accurately and scientifically measured this value is a technical issue worth exploring. Although the ministerial standard OB/T9390-1998 horizontal hard bearing balancing machine \Testing is judgmental. Dynamic balancing machine as long as they are given according to the measured minimum achievable residual unbalance u ~ (or the minimum achievable residual unbalance e ~) to determine test weight,air jordan shoes cheap, and re-tested in Canada after a group of collected amplitude imbalance A; meet: 0.88 ~ A <A ? <1.1 (12) (amplitude imbalance of the group A; the average), then given that the dynamic balancing machine minimum achievable residual unbalance u ~ qualified. For example given u ~ = 60g. I assemble, measured satisfaction (12), then that u,. . . r should be less than or equal to 60g. r puzzle, in line with the provisions of the technical requirements. However, the exact value of u ~ How much is not known. Industry experts and technical staff on this issue has been the study and has developed some valuable measurement method, the following two are recommended. ① The estimated residual rotor unbalance is equivalent to 5 to l0 times the test re-u added, followed by equal portions added to each angle of the rotor position l2, start balancing machine and read the corresponding angle of a uneven indication l2 (cell number), find the arithmetic mean of readings l2 A, the balance of dynamic balancing machine calibration coefficient k is: k = U plus / A (g.mm /, {s) (13) is the smallest achievable residual unbalance u a can be expressed as: a = k ・ (g.mm) (14) where the A a, A are the maximum and minimum values. ② According to the test order \. The actual minimum achievable residual unbalance u ~ has the following relationship: one. : A =: 0.12A, namely:,, Br. Wire divinatory r1 gas, ~ 20.12A, ... by (14), (15), we know, by adding trial weights u add, or give the minimum achievable residual unbalance u and a set of data can be measured accurate The minimum achievable residual unbalance u ~, by the relationship: emar = U a / M16) can be measured minimum achievable residual unbalance e ~. Experiments show that the same test conditions, the results of the above two measurement methods are consistent. <<<'<<<<<<<<<<<<<<<<''<<<<< ;<<'<<<<<<<<< ≮ <<<<<<<<<<<<< ;\;'<<<<<<<<<'<<<\I ~ TEL's 89C51 single-chip microprocessor, together with other typical external circuit. Its task is to complete the monitoring process control, data processing, computing, storage, and display, as shown in Figure l. 3 Conclusion protect the safety of the existing turbine's normal operation, the social and economic benefits are obvious. Development of the hydrogen concentration in the domestic line monitoring system, real-time monitoring of the generator hydrogen cooling system for improving the power factor of safety of 6 machines, and its significance. The success of this technology in the metallurgical, chemical and other departments are also great application value. Barriers Bu 'l!:::: CPU -. Turn factory-1H - + plant in Figure 1 相关的主题文章： ugg stivali Special post-harvest fruit handling _1327 air jordan shoes cheap The adjusting of electric m air jordans Generating units based DASYLAB virtual |
|
