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| Monitoring Absolute Amount of Deformation with Relative Displacement Method |
| XU Wan-peng |
| The Fifteenth Engineering Bureau Co. Ltd. Of China Railway Luoyang, Henan 471013, China |
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Abstract Research purposes: The purposes are to make exploration on how to solve the problems of monitoring absolute amount of deformation of plasmodium under condition of no way to establish measuring datum in narrow space.
Research methods: The absolute deformation of plasmodium is measured through measurement of relative deformation. First, the relative amount of deformation of the reference point surrounding the plasmodium is measured with nylon yarn base line and dialgauge measuring rod. At the same time of making relative measurement, the absolute position of reference point is measured with common measuring method and from which the absolute amount of deformation of plasmodium can be derived.
Research results: The computing model for amount of deformation is derived on the base of program selection and analysis principle.
Research conclusions: The application and analysis of measured accuracy show the result of measured deformation confirms to the deformation from theoretical analysis and the monitored accuracy reaches at submillimeter level, which can reflect the real deformation of plasmodium sensitively and meet the demands of monitoring deformation with high accuracy.
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Received: 25 May 2006
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2006, Vol. 23 
