抗磁性物质密度的精确测量方法

赵朋; 颉俊; 傅建中; 陈子辰

doi:10.3788/OPE.20162413.0387

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抗磁性物质密度的精确测量方法

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- 抗磁性物质密度的精确测量方法
- Accurate measurement method for density of diamagnetic material
- 光学精密工程 2016年24卷第10s期页码：387-393
- 作者机构：
  
  浙江大学机械工程学院浙江省三维打印工艺与装备重点实验室,浙江杭州,310007
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目（No.51475420）();浙江省自然科学基金资助项目（No.LY14E050017）();中央高校基本科研业务费专项资金资助项目（No.2
- DOI：10.3788/OPE.20162413.0387
  中图分类号： TQ320
- 收稿日期：2016-04-10，
  
  修回日期：2016-05-07，
  
  纸质出版日期：2016-11-14
- 稿件说明：
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赵朋, 颉俊, 傅建中等. 抗磁性物质密度的精确测量方法[J]. 光学精密工程, 2016,24(10s): 387-393

ZHAO Peng, XIE Jun, FU Jian-zhong etc. Accurate measurement method for density of diamagnetic material[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 387-393
赵朋, 颉俊, 傅建中等. 抗磁性物质密度的精确测量方法[J]. 光学精密工程, 2016,24(10s): 387-393 DOI： 10.3788/OPE.20162413.0387.

ZHAO Peng, XIE Jun, FU Jian-zhong etc. Accurate measurement method for density of diamagnetic material[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 387-393 DOI： 10.3788/OPE.20162413.0387.

摘要

针对现有的密度检测方法存在的精度低或操作计算过程繁琐的缺点，结合磁-阿基米德悬浮技术，提出了一种抗磁性物质密度的精确测量方法。该方法应用的磁悬浮测量装置可以保证被测样品在装置中达到稳定悬浮，并且在其他实验条件一定的情况下，样品悬浮高度仅与样品本身密度相关。建立了样品悬浮高度与样品密度的关系函数，可以由样品在装置中悬浮高度算出样品密度。通过拟合一组标准密度球在给定实验条件下的悬浮高度，得出了可在任意条件下根据样品悬浮高度进行密度计算的计算公式，并通过多组实验对公式的准确性进行了验证。还通过对几种高分子材料的实验，与传统浮力法进行了比对。实验及分析结果显示，该测量装置操作简便，具有很高的测量精度，可以达到0.0025 g/cm

，有很大的应用发展空间。相较于传统方法，该方法对小尺寸样品密度测量具有更高的测量精度。

Abstract

Aiming at disadvantages of low accuracy or complicated operation calculation process of the existing density detection method

and combined with technology of magnetism-Archimedes suspension

a kind of accurate measurement method for density of diamagnetic material has been proposed. Measuring equipment for magnetic suspension used by this method may guarantee that sample tested could reach stable suspension

and the suspension height of sample has correlation with density of sample itself under the condition where other experimental conditions are certain. The relation function between suspension height of sample and density of sample has been established

and the density of sample may be calculated through suspension height of sample in the equipment. By fitting a set of suspension height of standard density sphere under experimental conditions given

the calculation formula has been obtained

in which density could be calculated under arbitrary conditions according to suspension height of sample

and the accuracy of formula has been verified through many experiments. In addition

experiments with several kinds of high polymer materials are contrasted with traditional buoyancy methods. Experiment and analysis results show that:this measuring equipment has easy and simple operation

relatively high measurement accuracy (reaching 0.0025g/cm

) and great application and development space. Compared with traditional method

this method has higher measurement accuracy for density measurement of sample with small size.

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Keywords

references

王哲, 陈莉津, 肖爱玲,等. 塑料密度的测定理想气体状态方程法[J]. 塑料工业, 2006, 34(B05):247-248. WANG ZH, CHEN L J, XIAO A L, et al.. Determination of density of plastics-equation law of ideal gas state[J]. China Plastics Industry, 2006. (in Chinese)

王君, 张景元, 章广帅,等. 实心固体物质密度测量方法研究[J]. 吉林大学学报:信息科学版, 2015, 33(2):173-177. WANG J, ZHANG J Y, ZHANG G SH, et al.. Research on density measuring method for solids[J]. Journal of Jilin University, 2015,33(2):173-177. (in Chinese)

金艳, 吴大鸣, 何亚东,等. 超声波测量聚合物熔体密度[J]. 塑料, 2011, 40(5):102-105. JIN Y, WU D M, HE Y D, et al.. Ultrasonic measurement of polymer melt density[J]. Plastics, 2011, 40(5):102-105. (in Chinese)

许红, 吴大鸣, 刘颖,等. 聚合物熔体密度在线测量在精密注射成型中的应用[J]. 化工学报, 2012, 63(1):325-330. XU H, WU D M, LIU Y, et al.. Application of online measurement of melt density in polymer precise injection molding[J].Ciesc Journal, 2012,63(1):325-330. (in Chinese)

Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement[J].Astm.

IKEZOE Y, HIROTA N, NAKAGAWA& J, et al.. Making water levitate[J].Nature, 1998, 393(6687):749-750.

HIROTA N, KURASHIGE M, IWASAKA M, et al.. Magneto-Archimedes separation and its application to the separation of biological materials[J].Physica B Condensed Matter, 2004, 346:267-271.

ANDO T, HIROTA N, MAIE M. Development of recovery device for particulates in fluid by magneto-Archimedes separation[J].Separation & Purification Technology, 2015, 149:197-207.

MIRICA K A, SHEVKOPLYAS S S, PHILLIPS S T, et al.. Measuring densities of solids and liquids using magnetic levitation:fundamentals[J]. Journal of the American Chemical Society, 2009, 131(29):10049-58.

MIRICA K A, PHILLIPS S T, MACE C R, et al.. Magnetic levitation in the analysis of foods and water.[J]. Journal of Agricultural & Food Chemistry, 2010, 58(11):6565-6569.

LOCKETT M R, MIRICA K A, MACE C R, et al.. Analyzing forensic evidence based on density with magnetic levitation[J].Journal of Forensic Sciences, 2013, 58(1):40-45.

ATKINSON M B J, BWAMBOK D K, CHEN J, et al.. Using magnetic levitation to separate mixtures of crystal polymorphs[J].Chemical & Petroleum Engineering, 1995, 31(8):411-416.

SUBRAMANIAM A B, YANG D, YU H D, et al.. Noncontact orientation of objects in three-dimensional space using magnetic levitation[J]. Proceedings of the National Academy of Sciences of the United States of America, 2014, 111(36):12980-12985.

NEMIROSKI A, SOH S, KWOK S W, et al.. Tilted magnetic levitation enables measurement of the complete range of densities of materials with low magnetic permeability[J].Journal of the American Chemical Society, 2016,138(4):1252-1257.

赵朋,颉俊,傅建中,等. 塑料光学透镜的磁悬浮检测[J]. 光学精密工程, 2016,23(4):756-763. ZHAO P, XIE J, FU J ZH,et al.. The theory and method of magnetic levitation detection for plastic lens[J]. Opt. Precision Eng., 2016,23(4):756-763. (in Chinese)

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