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| Non-integer-period Sampling Influence on Rectification Error of Multi-directional Vibration Accelerometer |
| DONG Xue-ming,WANG Min-lin,DU Mei-lin |
| Changcheng Institute of Metrology & Measurement,Beijing 100095, China |
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Abstract To evaluate the influence of non-integer-period sampling on rectification error caused by vibration acceleration, the mathematical model of rectification error caused by singal directional vibration acceleration under non-integer-period sampling is established. By calculating the average value of vibration signals in all directions, the mathematical model of rectification error caused by multi-directional vibration acceleration under non integral period sampling is deduced. Based on the analysis of multi-directional vibration acceleration model, an approach to reduce the influence of non-integer-period sampling on rectification error is given. In simulation, the relative measurement error of rectification error is introduced to verify the effectiveness of the rectification error model of unidirectional vibration acceleration and multi-directional vibration acceleration under non-integer-period sampling.
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Received: 16 June 2022
Published: 10 October 2023
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| Fund:National Natural Science Foundation of China |
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2023, Vol. 44 
