|
|||||
|
|
| 基于激光跟踪仪的拖曳水槽车速动态校准 | |
| 引用本文： | 朱云龙,胡鹤鸣,金仲佳,窦英伟,谢代梁. 基于激光跟踪仪的拖曳水槽车速动态校准[J]. 计量学报, 2019, 40(2): 272-277. DOI: 10.3969/j.issn.1000-1158.2019.02.16 |
| 作者姓名： | 朱云龙 胡鹤鸣 金仲佳 窦英伟 谢代梁 |
| 作者单位： | 中国计量大学,浙江杭州310018;中国计量科学研究院,北京100029;中国计量科学研究院,北京,100029;中国船舶科学研究中心,江苏无锡,214082;山东省水文仪器研制中心,山东潍坊,261031;中国计量大学,浙江杭州,310018 |
| 基金项目： | 国家重点研发计划课题(2017YFC0405705);质检公益性行业科研专项(2015100003) |
| 摘 要： | 针对拖曳水槽测速轮静态标定后动态使用可能导致系统偏差的问题,提出一种基于激光跟踪仪的拖曳水槽车速动态校准方法。首先对激光跟踪仪的测速偏差进行了校准和修正,然后利用其开展了拖曳水槽车速动态校准研究;比较了水槽测速轮系统动态校准和静态校准的差异,发现采用测速轮系统在低车速下示值偏低,建议不同车速下采用不同的编码器系数;分析了车速稳定性和测速轮动态性能对校准结果的影响,探讨了实际情况下校准不确定度的评估方法。 |
| 关 键 词： | 计量学 车速 拖曳水槽 激光跟踪仪 动态校准 编码器系数 |
| 收稿时间： | 2017-12-04 |
Dynamic Calibration of Towing Tank Speed Based on Laser Tracker |
|
| ZHU Yun-long,HU He-ming,JIN Zhong-jia,DOU Ying-wei,XIE Dai-liang. Dynamic Calibration of Towing Tank Speed Based on Laser Tracker[J]. Acta Metrologica Sinica, 2019, 40(2): 272-277. DOI: 10.3969/j.issn.1000-1158.2019.02.16 | |
| Authors: | ZHU Yun-long HU He-ming JIN Zhong-jia DOU Ying-wei XIE Dai-liang |
| Affiliation: | 1. China Jiliang University, Hangzhou, Zhejiang 310018, China 2. National Institute of Metrology, Beijing 100029, China 3. China Ship Scientific Research Center, Wuxi, Jiangsu 214082, China 4. Shandong Hydrologic Instrument Development Center, Weifang, Shandong 261031, China |
| Abstract: | Towing tank usually measures its speed using a tachometer wheel, of which there is a systematic bias due to static calibration without considering dynamic characteristics. A dynamic calibration method of towing speed is introduced based on laser tracker. We firstly calibrate and correct the laser tracker on a long-rail speed facility, and then use it on the towing tank. Results show tachometer wheel with only static calibration has a lower indication, and the slower speed has the lower indication. It is better to use different encoder coefficients at different speeds. The uncertainty estimation method are also discussed, including the influence of towing speed stability and dynamic performance of the tachometer wheel. |
| Keywords: | metrology speed towing tank laser tracker dynamic calibration encoder coefficient |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《计量学报》浏览原始摘要信息 | |
| 点击此处可从《计量学报》下载全文 | |