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 Posted: Sun 2:21, 12 Dec 2010 Post subject: ugg boots günstig Seamless line straightness meas |
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| Seamless straight-line measurement of the degree of laser vision
The resulting tube straightness error, calculated by analysis of the straightness measurement system repeatability of measurement error 2a = 0.04mm. Table 1 The experimental results mm6 Conclusion This paper presents a new laser vision straightness of seamless steel pipe-line measurement method can effectively solve the straightness of seamless steel pipe ten meters long, large-scale equipment axis spindle spindle straightness and concentricity ladder other online measurement problems, has broad application prospects. References [1] SunChangku, LuRongsheng, LiuYue, eta1. Alaservet. siontestmethodfor8efllllles8steelpipestraightness [A]. In: Volume 3 23 databases and other long-Sun: Seamless straight-line measurement of laser vision 177 degrees (on the next page 163) Thus equation (  , the error term in a: * Lu 2 × 10 (13) Eq (11), (13) into (,ugg boots günstig, 5. × 10 A (14) 541014 ≈. × 'L when d: 4.6mm when, 8d a 2.5m. In good agreement with the experimental results. 5 summarizes the synthesis described in this article using tunable wavelength chain absolute distance interferometer system has the following features: distance for different analytes can choose different synthetic wavelength chain measured from coarse to fine to complete the process of measuring; the phase meter near zero phase in the phase measurement accuracy was low, the measurement process can be avoided by tuning the wavelength of zero-phase measurements; the system does not require the laser wavelength tuning characteristics of a continuous; synthetic wave decimal grade of interference fringes by a single wavelength interference signal phase measurements calculated. Can be seen from the error analysis, the main error source is the synthetic wavelength stability and environmental disturbances,ugg prezzo, if the sources of error make the following improvements for: ① uncertainty of the wavelength of dollars raised to 2 × 10. (Abroad have been able to achieve the accuracy of product); ② laser wavelength stability of 3 × 10 A (an increase of about one order of magnitude); ③ laser wavelength tuning range extended to 10nm; ④ temperature changes during the experiment is less than the workpiece 0.05oC, temperature changes caused by the relative change in length of the gap is about 2 × 10 ~. Calculation of the time available 8d/d4.5 × 10 ~,stivali ugg, that is, in this case, the measurement in the range of 2mm can be achieved in the measurement uncertainty is better than 0.1m. Therefore, the system described in this article, based on a little improvement, the interferometer can be more successful applications in high-precision internal and external size measurements,tory burch shoes, particularly in the small size of the application of the probe have great prospects. References [1] TilfordCR. Analyticalprocedurefordetermininglengthfromfractionalfringes [J]. ApplOpt, 1977,16 (71): 1857 A l860. [2] StoneJA, StejskalA, HowardL. Absoluteinterferometrywitha670amexternalcavitydiodelaser [J]. But zOpt, 1999,38 (2: 598l a 5994. [3] DeGrootP,ugg stivali, KishnerS. Syntheticwavelengthstablizationfortwo-colorlaser-diodeinterfemmetry [J]. ApplOpt, 1991,30 (29) :4026-4033. [4] TetuM, CyrN, eto2. Towardtherealizationofawavelengthstandardat780ambasedonalaserdiodefrequencylockedtorubidiumvapor [J]. IEEETransOnIM, 1991,40 (2): 191 for a l95. [5] Chaozhi Xia, Jian Wu, Yanchun Yong, Xu Yi. Method can be used to beat Perot interferometer 633am a tunable external cavity semiconductor laser [J]. J. (to be published). [6] Wang Gang, Shen is a shock, Weizhan Kai, Zhang Zhiyong, Liang Yansheng. The principle of infrared laser wavelength meter and its development [J]. MEASUREMENT AND TEST ,1994,3:6-12.
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