DYNAMIC MASS MEASUREMENT AND APPROPRIATE FILTER ANALYSIS

Year 2016, Volume: 16 Issue: 2, 3033 - 3036, 23.09.2016

İsmail Yabanova

Abstract

The output signal of the load cells used in weighing systems always has an oscillating response and a certain amount of time is needed for this signal to settle to its real value. On the other hand, the output signal of the load cell in conveyor belt type checkweighers is significantly noisy due to the system's own vibrations and the fact that the object is moving. It is necessary to use effective filters in order to eliminate the effect of these noises and to improve the response of the load cell.  Increasing the effect of the filter improves the accuracy of the measurement; however, it leads to an increase in measurement time as well.  Therefore, it is necessary to use effective and quick-response filters in applications where measurement speed and accuracy are important.   In this study, an electronic and mechanical system that can weigh moving products was designed and appropriate filters were tested and analyzed to reach the desired weighing speeds.

Keywords

Dynamic mass measurement, low-pass filter, signal processing, in motion weighing

References

• M. Niedźwiecki, A. Wasilewski, Application of adaptive filtering to dynamic weighing of vehicles, Control Engineering Practice, Volume 4, Issue 5, May 1996, Pages 635-644, ISSN 0967-0661
• Yamazaki, T.; Sakurai, Y.; Ohnishi, H.; Kobayashi, M.; Kurosu, S., "Continuous mass measurement in checkweighers and conveyor belt scales," SICE 2002. Proceedings of the 41st SICE Annual Conference , vol.1, no., pp.470,474 vol.1, 5-7 Aug. 2002 doi: 10.1109/SICE.2002.1195446
• Giovanni Boschetti, Roberto Caracciolo, Dario Richiedei, Alberto Trevisani, Model-based dynamic compensation of load cell response in weighing machines affected by environmental vibrations, Mechanical Systems and Signal Processing, Volume 34, Issues 1–2, January 2013, Pages 116-130, ISSN 0888-3270
• Przemysław Pietrzak, Michał Meller, Maciej Niedźwiecki, Dynamic mass measurement in checkweighers using a discrete time-variant low-pass filter, Mechanical Systems and Signal Processing, Volume 48, Issues 1–2, 3 October 2014, Pages 67-76, ISSN 0888-3270, http://dx.doi.org/10.1016/j.ymssp.2014.02.013.
• Ryosuke Tasaki, Takanori Yamazaki, Hideo Ohnishi, Masaaki Kobayashi, Shigeru Kurosu, Continuous weighing on a multi-stage conveyor belt with FIR filter, Measurement, Volume 40, Issues 7–8, August–October 2007, Pages 791-796, ISSN 0263-2241, http://dx.doi.org/10.1016/j.measurement.2006.05.010.
• Jacek Piskorowski, Tomasz Barcinski, Dynamic compensation of load cell response: A time-varying approach, Mechanical Systems and Signal Processing, Volume 22, Issue 7, October 2008, Pages 1694-1704, ISSN 0888-3270,
• Kaszynski, R.; Piskorowski, J., "Selected Structures of Filters With Time-Varying Parameters," Instrumentation and Measurement, IEEE Transactions on , vol.56, no.6, pp.2338,2345, Dec. 2007 doi: 10.1109/TIM.2007.908278
• Yamazaki, T.; Ono, T., "Dynamic problems in measurement of mass-related quantities," SICE, 2007 Annual Conference , vol., no., pp.1183,1188, 17-20 Sept. 2007
• Jafaripanah, M.; Al-Hashimi, B.M.; White, N.M., "Application of analog adaptive filters for dynamic sensor compensation," Instrumentation and Measurement, IEEE Transactions on , vol.54, no.1, pp.245,251, Feb. 2005
• H.B. Bahar, D.H. Horrocks, Dynamic weight estimation using an artificial neural network, Artificial Intelligence in Engineering, Volume 12, Issues 1–2, January–April 1998, Pages 135-139
• Halimic, M.; Balachandran, W.; Enab, Y., "Fuzzy logic estimator for dynamic weighing system," Fuzzy Systems, 1996., Proceedings of the Fifth IEEE International Conference on , vol.3, no., pp.2123,2129 vol.3, 8-11 Sep 1996
• Xu Jian; Ma Bin, "Investigation of discrete wavelet transform for signal de-noising in weight-in-motion system," Future Computer and Communication (ICFCC), 2010 2nd International Conference on , vol.2, no., pp.V2-769,V2-772, 21-24 May 2010
• Juncheng Xiao; Pengmin Lv, "Application of Wavelet Transform in Weigh-in-Motion," Intelligent Systems and Applications, 2009. ISA 2009. International Workshop on , vol., no., pp.1,4, 23-24 May 2009
• Ma Bin; Zou Xinguo, "Discrete Wavelet Transform for Signal Processing in Weight-in-Motion System," Electrical and Control Engineering (ICECE), 2010 International Conference on , vol., no., pp.4668,4671, 25-27 June 2010
• Lee D. Han, Sung-Seok Ko, Zhongren Gu, Myong K. Jeong, Adaptive weigh-in-motion algorithms for truck weight enforcement, Transportation Research Part C: Emerging Technologies, Volume 24, October 2012, Pages 256-269
• Bernard Jacob, Vronique Feypell-de La Beaumelle, Improving truck safety: Potential of weigh-in-motion technology, IATSS Research, Volume 34, Issue 1, July 2010, Pages 9-15
• Axel Liljencrantz, Raid Karoumi, Per Olofsson, Implementing bridge weigh-in-motion for railway traffic, Computers & Structures, Volume 85, Issues 12, January 2007, Pages 80-88
• CS5530/31/32/33/34: Rejection of 50 Hz & 60 Hz Line Interference