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 Wysłany: Wto 8:21, 14 Gru 2010 Temat postu: tory burch Evaluation of instrument characteristic |
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Evaluation of instrument characteristics and measurement of the maximum tolerance of Uncertainty
Test procedures or the technical specifications of the measurement methods used to measure the scope of that section or under given the measurement uncertainty. In this case, measurement uncertainty, as measured by the assessment instrument parameters may seem very complicated. After 4 Views on the above discussion, the paper made the following observations: (1) measurement uncertainty is characterized by measurement of the parameters, and measurement data should be linked with the measuring instruments are generally not linked to JI. (2) the characteristics of evaluation index measuring instruments measurement uncertainty does not apply, because the measurement uncertainty is the standard device used to measure certain environmental conditions in the measurement data obtained under the parameters associated with a different standard device, measured by different technical specifications in the relevant provisions, but not the same assessment of the environmental conditions down the measuring equipment,[link widoczny dla zalogowanych], measurement uncertainty based on the evaluation method has been assessed in the same indication instruments have different measurement uncertainty, the characteristics of the instrument can not be said. (3) of the reference material or measuring instruments in a single parameter measurement data given at the same time gives the measurement uncertainty. Should be clear: in this case, the measurement uncertainty is given by the parameters in the uncertainty. (4) uncertainty of measurement used to indicate a calibration body (with a device) or parameters of an instrument calibration capabilities; measurement uncertainty can also be used to indicate the ability of a test measurement device. Must be clear: in this case is the use of the device being measured by the school instrument calibration parameters, measurement uncertainty for the specific parameters of the instrument by the school, not the appropriate test device obtained in the measuring instruments standard value of measurement uncertainty, the measurement results and uncertainty of measurement should be the best measurement capability 34 No. 5 Chen Min et al: Evaluation of instrument characteristics of the maximum tolerance and the definition of measurement uncertainty of 35 measurements of the measurement of environmental and other conditions of constraint. (5) characteristics of measuring instruments should be used JJF1094-2002 Evaluation of the method, in the 1094 assessment of the characteristics of the measuring instruments are summarized 1O term indicators for assessing, the main [Indication】 error, repeatability, response and stability indices where you can select one or more of the indicators reflect the assessment of measuring instruments [10】. (6) If you find a useful measure to express the uncertainty of measuring instruments or measurement standards for performance, it can be understood by the instrument under certain conditions provided in the reproduction of a typical value of the measurement uncertainty. Calibrated and is known for its indication error of measuring instruments, can be understood as the calibration error of indication from the measurement uncertainty. 5 Conclusion In summary, the correct understanding of the definition of measurement uncertainty and understanding of how to get the channels of data measurement uncertainty, we know: measurement uncertainty is related to the parameters and measurements used as an instrument characteristic evaluation parameters are inappropriate. When the measurement uncertainty as a standard material, a single parameter of the measuring instruments and testing equipment measuring the technical parameters, we should be treated differently, the correct understanding of the technical content of this article their implicit interpretation were carried out. References [1] J. W1094-2002, Evaluating Characteristics of measuring instruments 【S]. Beijing: China Metrology Publishing House, 2002. [2】 2JJg1033-2001, Check for Standard of measurement [S]. Beijing: China Metrology Publishing House, 2001. 【3】 JJF1001-1998, general terms and definitions of measurement 【S】. Beijing: China Metrology Publishing House. 1998. [4] JJF1059-1999,[link widoczny dla zalogowanych], Measurement Uncertainty and said 【S】. Beijing: China Metrology Publishing House, 1999. 【5】 Li Xiaodong, Li Xiaoling. Uncertainty of measurement and evaluation methods related concepts of 【J]. TESTING physical volumes, 2002,38 (11) :510-513. [6】 Wang Lixin, Liu Jingli,[link widoczny dla zalogowanych], Tian Yun. Indication error and the correct application of measurement uncertainty concept. China Metrology, 2005 (9) :81-82. [7] Chen Jianwei. Error of indication on the measuring instruments Thinking uncertainty 【J]. Measurement and Testing Technology,[link widoczny dla zalogowanych], 2004,17 (12) :38-39. [8] 8JJF1059-1999, Evaluation and Expression of Measurement Uncertainty to discuss Six: Measurement uncertainty 【s】. Beijing: Industrial Measurement Press ,2006:39-41. 【9】 Fei Yetai. Research and development of error theory 【J]. Measurement Technology, 1998 ( : 4O-41. 【L0] Chen Minghua, Shi Changyan. Error of relative uncertainty and relative error of the uncertainty [J]. China Metrology, 2003 (10) 72-73.
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