1) efficacy measurement of shielded magnetic field
屏蔽效能测试
1.
An experiment system of efficacy measurement of shielded magnetic field in low frequency band is described in the paper.
介绍了一种自行研制的低频屏蔽效能测试实验系统的组成、基本原理及相应相的制作 ,并给出了实验实例与结
2) shielding test
屏蔽测试
3) shielding efficiency
屏蔽效能
1.
Study of shielding efficiency on electromagnetic radiation shielding wool clothes;
防电磁辐射毛服装屏蔽效能的研究
2.
An Auto-testing System of Testing Shielding Efficiency Based on VB and LabVIEW;
基于VB和LABVIEW的屏蔽效能自动测试系统设计
3.
Investigation of shielding efficiency against pulse magnetic field based on FDTD method;
基于FDTD方法的脉冲磁场屏蔽效能研究
4) shielding effectiveness
屏蔽效能
1.
Study of Electromagnetic Shielding Effectiveness of Nano-meter Structural Carbon Black/ABS Composites;
纳米炭粉/ABS复合材料屏蔽效能的研究
2.
Electromagnetic shielding effectiveness of doped polyaniline composites;
低频聚苯胺/硅橡胶复合材料屏蔽效能的分析
3.
Principle and simulation analysis software of multi-core cable shielding effectiveness;
多芯电缆屏蔽效能原理及其仿真分析软件
5) shield efficiency
屏蔽效能
1.
Based on the transmission line theory,the shield efficiency calculate formula of folder-filler formed by metal silk screen is established.
基于电磁屏蔽的传输线理论 ,提出了以金属丝网为原材料的褶皱芯材结构电磁屏蔽效能的计算公式。
2.
Analytical approach and numerical approach are combined to calculate the magnetic inductive intensity in the space nearby the busbars so as to research shield efficiency.
鉴于室内配电房广泛使用的平板形大电流母排,根据母排实际尺寸、位置参数等构建了其工频磁场分布的计算模型,将解析法与数值分析相结合求得空间各点的磁感应强度,以便于磁场屏蔽效能的研究。
6) shielding effect
屏蔽效能
1.
I discussed the shielding effect by the different grades and their potential value, and these results maybe bring some important information on the basic research on terahertz absorption and stealthy materials.
5THz范围内的屏蔽效能曲线,根据屏蔽等级的划分分析了这些物质在太赫兹波段的屏蔽效能,及可能的应用价值,这些结果为THz波段的吸波屏蔽材料的研究奠定了基础。
2.
, the shielding film was deposited on the surface of the plastic PET by magnetron sputtering to form a composite film of which the adhesion exceeded 5MPa with the shielding effect over 60dB in the range from 2 to 4GHz.
本文采用磁控溅射技术在聚酯塑料(PET)上制备出附着力大于5MPa、2GHz~4GHz频率范围内屏蔽效能大于60dB的复合结构的电磁屏蔽膜,并研究了导电膜、导磁膜及其复合膜层的电磁屏蔽特性。
3.
The terahertz spectra of four stealthy cloths including gray shielding cloth,brick-red shielding cloth,light and dark calibration shielding cloth were studied experimentally,the shielding effect is discussed.
对灰色、砖红色、深浅迷彩色四种屏蔽布的屏蔽性进行了太赫兹光谱实验研究,得到了这几种屏蔽布的屏蔽效能曲线。
补充资料:测试结果可接受性的检查和最终测试结果的确定
测试结果可接受性的检查和最终测试结果的确定
check of the acceptability of test results and determination of the final test result
C凡(3)二3.3d,时,取此3个结果的平均值作为最终侧试结果;否则取它们的中位数作为最终测试结果。。,为重复性标准差(即在重复性条件下所得侧试结果的标准差)。 在口田T 11792一1989中还对重复性和再现性条件下所得侧试结果可接受性的检查方法和最终测试结果的确定做了详细讨论和规定。(马毅林)ceshi 11叩uo kejieshCxjxing d6 iiancha he zuizhong ceshi】i闪旧de que心ing测试结果可接受性的检查和最终测试结果的确定(checkof山eac,ptability of test,ults助ddsterminationofthefi耐testresult)在商品检验中进行一次测试的情形不多见,当得到一个测试结果时,所得结果不可能直接与给定的重复性标准差作可接受性的检查。对测试结果的准确性有任何疑问时都应再进行一次测试。所以,对两个测试结果进行可接受性的检查是一般的情况。 可接受性的检查,实际上是一种统计检验。任何两个测试结果只要能通过可接受性的统计检验即可认为是一致的,均可接受。比如,在重复性条件下,所得结果之差的绝对值(下称绝对差)不超过相应的重复性限r(见重复性和再现性)的值,则认为两个结果是一致的,均可接受;如果两个侧试结果的绝对差超过r,则认为它们是不一致的,必须增加测试。 按国家标准《测试方法的精密度在重复性或再现性条件下所得测试结果可接受性的检查和最终测试结果的确定》(GBIT 1 1792一1989),在重复性条件下,如果两个测试结果的绝对差不超过r的值,可取两个侧试结果的平均值作为最终测试结果。如果两个结果的绝对差超过r的值,并且测试费用较低,须再做两次测试。当4个结果的极差(即其中的最大值与最小值之差)不超过相应的临界极差c,瓜(4)二3.6a,时,取4个结果的平均值作为最终测试结果。如果两个结果的绝对差超过r的值,并且测试费用较高时,只须再作一次测试。当3个结果的极差不超过相应的临界极差
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