沈新春,沈琪,申丽霞,刘芳,王微山.食品接触材料及制品的接触面积与容积的计算[J].包装工程,2018,39(5):82-86.
SHEN Xin-chun,SHEN Qi,SHEN Li-xia,LIU Fang,WANG Wei-shan.Calculation of Contact Area and Volume of Food Contact Materials and Their Products[J].Packaging Engineering,2018,39(5):82-86. |
| 食品接触材料及制品的接触面积与容积的计算 |
| Calculation of Contact Area and Volume of Food Contact Materials and Their Products |
| 投稿时间：2017-02-17 修订日期：2018-03-10 |
| DOI：10.19554/j.cnki.1001-3563.2018.05.016 |
| 中文关键词: 食品接触材料 接触面积 不锈钢 圆环胎 螺旋弹簧 球台 抛物面体 表面积 |
| 英文关键词: food contact materials contact area stainless steel torus helical spring spherical segment paraboloid surface area |
| 基金项目:山东省标准化项目（2015-1-061） |
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| 中文摘要: |
| 目的 研究不同形态的食品接触材料及制品接触面积（S）与食品模拟物体积（V）的测量方法。方法 食品接触材料及制品的检测一般先要准确地测定出S与V，但实际检测中由于样品结构的多样性以及某些样品S和V的计算公式不为人熟知，常采用估算方法，会造成较大的人为误差。以某些不锈钢制品为例，检索国内外数学手册，找到相关的计算公式并进行推导，同时综合测定非规则几何体S与V的方法。结果 得到了圆环胎、螺旋弹簧、球台、椭球体、桶形体、抛物面体等常见规则几何体的表面积、体积计算公式，以及测定非规则几何体S与V的方法。结论 由这些公式及方法可准确测定S和V，可避免人为误差，实现科学、准确的检测。 |
| 英文摘要: |
| The work aims to study the method used to measure the contact area (S) and the volume of food simulants (V) of different shapes of food contact materials and products. For the detection of food contact materials and products, generally S and V should be accurately determined; however, due to the diversity of the sample structure and the tester's unfamiliarity with the calculation formula of S and V during the actual detection, the estimation method was often used to calculate them, which usually led to a larger human error. Taking some stainless steel products as an example, the mathematical manuals at home and abroad were retrieved to find out the relevant formulas for derivation. In the meantime, the method used to measure the irregular geometric bodies S and V was synthesized. The surface area and volume formula of common regular geometric body, such as torus, helical spring, spherical segment, ellipsoid, barrel shape, paraboloid and so on, as well as the method used to measure the irregular geometric bodies S and V were obtained. By using these formulas and methods, it is easy to calculate accurately the S and V and reduce human error, which lays the foundation for scientific and accurate detection. |
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