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Million workers were on the arc of large radius of the workpiece precision measurement of non-centering Discussion Paper of the views

Heart volume by Pu precision guillotine paper (hereafter referred to 'JIA),[link widoczny dla zalogowanych], reading that there are different views on the following few, then put forward the views open to question. First, find the arc on any two points P. (,), Pz (x2.) the middle point of the formula: _ limonene 【II (4):: 』(6, is clearly wrong. Because in the mid-point location in a Cartesian coordinate system formula: to cause the final result to also wrong. Second, removing the bullock on the man-machine dialogue described in the section of a large error (see JIA II) is also due to scientific and precise. because the general error theory of excavation there is some big error removed is not only the original Mann lf soil components (arc) in different parts of a measurement test set can be the result of the Code, excluding the poor treatment Huan Tai Ming. original data obtained according to a number of center radius and the number of position values. is based on the arc different parts of the measurement data obtained, in essence, instead of waiting for accuracy. the error size and the location of measurement points taken,[link widoczny dla zalogowanych], and the actual processing of the measured arc related to the quality. In a certain extent, reflect the actual processing of the arc quality, so the method used to associate subjective judgments than is wrong. Third, Zhi Wen on the number of measurement points (Ⅳ) and perpendicular bisector of the article number (charge) the relationship between; a B-correct = 4X Ⅳ rain A 10 ( Cool

We believe that the lack of theoretical basis. pigsty arc on the axis of the section number () and the number of measurement points (Ⅳ) Taiwan relations should be based on group theory to calculate, that is, = following the results of this formula. JIA formula proposed list of comparison. measuring points Ⅳ 345B7891OH = 4 Ⅳ. a chaos 2B3645 10261O1l1822263O_H = ctr3610l5 can be seen from the table. by the n = 4 Ⅳ perpendicular bisector of a line of 10 obtained less than the number = only in = 4 and Ⅳ = 5 the same. Fourth,[link widoczny dla zalogowanych], a view of error analysis. JIA method used by the center square and the coordinates reported to the limits of error. their conclusions given the premise is wrong. There is a clear confusion set direct measurement and indirect guillotine The concept of error calculation. JIA find in the center coordinates of () is the amount obtained by indirect O i, the error of indirect measurement should be calculated for data processing,[link widoczny dla zalogowanych], which should be drug through the maggot = Lu + z . Therefore, a simple square and the center coordinates of the root obtained by the limits of error of the actual error is greatly reduced. In addition. JIA analyzed only four errors. ignores the measurement error of the workpiece size of pointing error with the aim of its way The differences vary. If; image method,[link widoczny dla zalogowanych], optical contact method. In addition, the machining accuracy and workpiece good ring (surface quality of the pros and cons) also have a greater relationship. on the cream a try kV meter ■

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