| 基于磁致伸缩效应的液体密度在线测量方法 |
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| 引用本文： | 李一博,靳世久,孙墨杰,徐晗.基于磁致伸缩效应的液体密度在线测量方法[J].天津大学学报(自然科学与工程技术版),2004,37(4):368-372. |
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| 作者姓名： | 李一博 靳世久 孙墨杰 徐晗 |
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| 作者单位： | [1]天津大学精密测试技术及仪器国家重点实验室,天津300072 [2]哈尔滨昊维科技开发公司,哈尔滨150076 [3]东北电力学院应用化学系,吉林132012 |
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| 摘 要： | 在分析磁致伸缩液位传感器工作原理基础上，针对磁致伸缩液位计不能进行密度测量的问题，提出多浮子相对位移测量法，在磁致伸缩液位计上实现了液体密度的在线高精度测量。同时分析了被测介质密度的变化对液位测量精度的影响，给出了液位测量的密度校正方法，进一步提高了磁致伸缩液位传感器的液位测量精度。
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| 关 键 词： | 磁致伸缩效应 液体密度 在线测量 多浮子相对位移法 磁致伸缩液位传感器 |
| 文章编号： | 0493-2137(2004)04-0368-05 |
| 修稿时间： | 2003年3月18日 |
Liquid Density On-Line Measuring Based on Magnetostriction Effect |
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| LI Yi-bo.Liquid Density On-Line Measuring Based on Magnetostriction Effect[J].Journal of Tianjin University(Science and Technology),2004,37(4):368-372. |
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| Authors: | LI Yi-bo |
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| Abstract: | This paper analyzes the principle of liquid density measurement of magnetostrictive sensor, and brings forward a multi-floater relative displacement method aiming at the viewpoint that magnetostrictive li-(quidometer) cannot measure liquid density. As a result, on-line high precision measurement on magnetostrictive liquidometer has been achieved. Furthermore, a density correction method is given on the basis of the above measurement results, in order to solve the problem of media density variation which may affect the liquid surface measurement precision. Thus, the measurement precision of magnetostrictive liquidometer has been greatly increased. |
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| Keywords: | magnetostriction multi-floater relative displacement method on-line measurement density |
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