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7 March 2019 Establishment of standard device for high rotational speed generation
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Proceedings Volume 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation; 110530U (2019) https://doi.org/10.1117/12.2517180
Event: 10th International Symposium on Precision Engineering Measurements and Instrumentation (ISPEMI 2018), 2018, Kunming, China
Abstract
The high rotational speed standard device based on brushless DC coreless micro motor and FPGA technology for highaccuracy rotational speed control was investigated and established, with resolution of 1 r/min in the measurement range of 40000 r/min to 100000 r/min. The expanded calibration uncertainty of this standard device is 1×10-5, k=3 The structure of the device and key technology involved were described.The dual closed-loop control solution was explained. The calibration results were provided.This high rotational speed standard device is used as an important working standard for the feasible traceability of high-precision optical tachometers and rotational speed measuring instruments at measurement range above 40000 r/min.
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Qiao Sun, Jie Bai, Lei Du, Zhe Fan, and Hongbo Hu "Establishment of standard device for high rotational speed generation ", Proc. SPIE 11053, Tenth International Symposium on Precision Engineering Measurements and Instrumentation, 110530U (7 March 2019); https://doi.org/10.1117/12.2517180
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