| 陈丕通.密度法无损测定黄金饰品中金量的原理及影响因素讨论[J].地质找矿论丛,1995,(3):80-85 |
| 密度法无损测定黄金饰品中金量的原理及影响因素讨论 |
| A PRINCIPLE ABOUT NON-DISTRUCTIVE TEST OF GOLD CONIENT IN GOLD ORNAMENTS BY DENSITOMETRY AND DISCUSSION OF INFLUENCE FACTORS |
| 投稿时间：1995-04-05 修订日期：1995-06-27 |
| DOI：10.6053/j.issn.1001-1412.1995.3. 010 |
| 中文关键词: 密度法 无损测定 黄金饰品 |
| 英文关键词: |
| 基金项目: |
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| 中文摘要: |
| 本文根据物理学的基本定律,通过严密的数学推导,详细讨论了密度法无损测定黄金饰品含金量的基本原理、影响测定准确度的诸因素以及测量误差的估计等问题,阐明了该法的实用性和局限性。在此基础上初步探索了以X射线光谱法与密度法联合,进行金饰品含金量准确测定的途径。 |
| 英文摘要: |
| A principle about non-distructive test of golid content in gold ornaments by densitometry was described in this paper. It is expounded that the relation between gold content in ornaments and reciprocal of its density is linear:ω(Au)= A-B·ρs-1. The calculative nethod of the coefficients of A and B in the mathematical model was reported and various effcting factors of testing accuracy were discussed. On the basis of error analysis it is pointed out that the error of densitometry depend on testing accurecy of buoyancy in varying degrees. To increase testing accurecy a new way,which unites densitometry and XRF for nondistructive test of gold content in gold ornaments, was explored. |
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