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7 March 2019 Accurate measurement of displacement using acceleration signal
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Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 110533L (2019) https://doi.org/10.1117/12.2512175
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China
Abstract
The accurate measurement of displacement and load in the oil well dynamometer diagram is the need to achieve energy saving, efficiency and stable production. Wherein, the displacement signal is calculated from the acceleration signal in the dynamometer. Theoretically, the acceleration signal can be integrated by two time-domain integrations to obtain the displacement signal. However, the noise and direct-current(DC)components in the time-domain signal would produce a drift-type principle error after two integrals. In order to solve this problem, this paper has proposed a frequency domain integral-based displacement solution method. Meanwhile, this paper has expounded the principle of frequency domain integration and analyzed the possible sources of error of the obtained results. An evaluation model was proposed experimentally verified. Test results indicated this method can be used to improve the accuracy of displacement measurement. This research has important implications for improving the economic benefits of the oil field.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jiawei Ding, Jiandong Ma, Yunliang Qin, Jing Fan, Bo Fang, and Jiacheng Hu "Accurate measurement of displacement using acceleration signal", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 110533L (7 March 2019); https://doi.org/10.1117/12.2512175
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