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Automatic Laser Interferometer And Vision Measurement System For Stripe Rod Calibration

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In order to calibrate the stripe precision of a leveling rod, an automatic laser interferometer and a vision measurement system were designed by Xi’an University of Technology in China. The rod was driven by a closed-loop control and the data were collected at the stop state to ensure precision. The laser interferometer provided not only the long distance data but also a position feedback signal in the automatic control loop. CCD camera and a vision measurement method were used to inspect the stripe edge position and defect. Apixel-equivalent self-calibration method was designed to improve precision. ROI (regions of interest) method and an outline tracing method were designed to quickly extract multiple stripe edges. A combination of the image data with the interferometer data reduces control difficulty and ensures the measurement accuracy. The vision measurement method reached sub-pixel precision and the defective edges were reported. The system can automatically calibrate a stripe leveling rod with a high degree of efficiency and precision.
Rocznik
Strony
491--502
Opis fizyczny
Bibliogr. 19 poz., fot., rys., tab., wykr., wzory
Twórcy
autor
  • Xi’an University of Technology, School of Mechanical Instrumental Engineering, Xi’an 710048, China
autor
  • Xi’an University of Technology, School of Mechanical Instrumental Engineering, Xi’an 710048, China
autor
  • Xi’an University of Technology, School of Mechanical Instrumental Engineering, Xi’an 710048, China
autor
  • Xi’an University of Technology, School of Mechanical Instrumental Engineering, Xi’an 710048, China
Bibliografia
  • [1] Liu, J.N., Ye, X.M., Yang, S.J. (2009). The overview of digital electronic level principle. Journal of Electronic Measurement and Instrument, 23(7), 89-94.
  • [2] Gassner, G.L., Ruland, R.E. (2006). The SLAC Comparator for the Calibration of Digital Leveling Equipment. 9th International Workshop on Accelerator Alignment.
  • [3] Penzes, W.B., Allen, R.A., Cresswell, M.W., Linholm, L.W. (2000). Teague EC. A new method to measure the distance between graduation lines on graduated scales. IEEE Transactions on Instrumentation and Measurement, 49(6), 1285-1288.
  • [4] Takalo, M. (2000). On automation in precise height determination. Acta Polytechnica Scandinavica, 119, 7-24.
  • [5] Li, X., Zhao, N.N., Guo, J.J. (1990). On automatic measurement system of invar grade rod. Acta Geodetic Cartographic Sinica, 19(2), 130-137.
  • [6] Chen, C.S., Wu, C.T., Chang, M.W., Chang, W.C. (2008). Establishing an invar leveling calibration system. Journal of the Chinese Institute of Engineers, 31(5), 861-866.
  • [7] Wu, C.T., Chen, C.S., Chang, M.W. (2013). Uncertainties in the Calibration System for Invar Leveling Rods. Journal of Applied Science and Engineering, 16(1), 69-78.
  • [8] Zhao, M., Qiu, Z.M., Huang, Q.H., Zhu, L.J. (2008). Code-bar grade rod measurement by vision collimation and laser interferometry. Optics and Precision Engineering, 16(3), 537-542.
  • [9] Peter, W., Karl, F. (2006). A New CCD-based Technique for the Calibration of Leveling Rods. XXIII FIG Congress, Munich, Germany.
  • [10] Woschitz, H., Gassner, G., Ruland, R. (2007). SLAC vertical comparator for the calibration of digital levels. Journal of Surveying Engineering, 133(3), 144-150.
  • [11] Kim, J.A., Kim, J.W., Kang, C.S. (2010). An interferometric Abbe-type comparator for the calibration of internal and external diameter standards. Measurement Science and Technology, 21(7).
  • [12] Birch, K.P., Downs, M.J. (1993). An Updated Edlén Equation for the Refractive Index of Air. Metrologia, 30, 155-162.
  • [13] Takao, O., Tetsuo, S. (2010). Manufacturing processes and products of bar and wire rod in JFE steel group. JFE Technical Report, 15, 1-3.
  • [14] Djite, I., Magnan, P., Estribeau, M. (2010). Modeling and measurements of MTF and quantum efficiency in CCD and CMOS image sensors. Proc. of SPIE, 7536.
  • [15] Bloch, S., Betensky, E. (2001). Telecentric zoom lens used in metrology applications. Proc. of SPIE, 4487, 42-52.
  • [16] Huang, Q.H., Zhao, M., Qiu, Z.M. (2007). Online self-calibration method of code-bar grade rod imaging system. Journal of Optoelectronics Laser, 18(3), 353-355.
  • [17] Wu, T., Qin, K. (2012). Data field-based transition region extraction and thresholding. Optics and Lasers in Engineering, 50,131-139.
  • [18] Zhao, M., Qiu, Z.M., Huang, Q.H. (2002). A Method for Improving Resolution Power of Image Measurement. Journal of Xi’an University of technology, 18(1), 80-83.
  • [19] JJG 8-1991: Verification regulation of level rod. National metrological verification regulations of People’s Republic of China.
Uwagi
EN
This work was financially supported by grants from National Natural Science Foundation of China (No. 51405382, 51305346), the fund of education department of Shaanxi province of China (No. 2013JK1025)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-7c4c5fa9-365d-454f-adf5-c081f74411ef
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