The utility model relates to the manufacturing field of money counters, particularly to a money counter which has a shielding case arranged on a switching power board. 本实用新型涉及点钞机制造领域,特别是开关电源板装有屏蔽罩的点钞机。
A shielding case is arranged on the inserting part to prevent electromagnetic interference and is provided with through-holes corresponding to the through-holes of the body. 一遮蔽壳体,设置在上述本体的插接部上,用以防止电磁波干扰,且该遮蔽壳体设有与所述本体的贯穿孔相对应的贯穿孔;
This paper deals with the shielding effect of coil case on magnetic field in the superconducting toroidal magnets. 研究了超导环向场磁体线圈盒对磁场的屏蔽效应。
Measuring shielding effectiveness of metallic case of electronic facility before assemblage is an important subject in EMC researching and designing. 预测试金属机柜的屏蔽效能一直是电磁兼容性研究与设计的一大课题。
This paper studies the electromagnetic shielding of computer case, analyses the theory of its leakage, connectes the relationship with mathematical models, discusses the shielding measures to take and makes some compare. 研究了机箱的电磁屏蔽特性,分析其产生电磁泄漏的机理,与相应的数学模型建立联系,给出可以采取的屏蔽电磁泄漏的措施,并做了一定的比较。
When PCB or PCB with cooling board or shielding box will be inserted into the slot of case, the same kind of this locking device can be used to satisfy the different dimensional requirement of three different kinds of insertion mode. 使用同一规格的该锁紧装置,可同时满足印制板单独插入、印制板带冷板插入和屏蔽盒插入三种不同方式插入机箱插槽时不同的尺寸要求。
The principle, setup and key points of shielding effectiveness testing for high frequency electromagnetic field were introduced in detail and case study was presented. 对高频电磁场屏蔽效能测试的基本原理及配置、测试要点作了详细的介绍,并提供实例以供参考。
The results indicate that this shielding effect has obvious difference to the different directional field. The coil case presents relatively strong shielding effect to the penetration of the tangential field. 研究结果表明,线圈盒对磁场的屏蔽效应因磁场的方向不同有很大的差别,线圈盒对切向磁场的渗透呈现较强的屏蔽效应。
Measuring Method of Shielding Effectiveness of Metallic Case 金属机柜屏蔽效能的测试方法
Electromagnetic Shielding Measures in Relay Case Design 微机保护装置机械结构设计中的电磁屏蔽措施
Design of Shielding Case and Measurement of Shielding Effects 机箱屏蔽设计和屏蔽效果测量
This article introduced a method to measure the shielding effectiveness of metallic case using a wide band signal source. 本文介绍了用广谱信号源作为发射装置进行机柜屏蔽效能测试的原理和方法。
Introducing how to use transfer impedance of conducting gasket to calculate shielding effectiveness of case and the influencing factor of shielding effectiveness is analyzed and ameliorating method is given. 介绍了如何用导电衬垫转移阻抗法计算机箱的屏蔽效能,并分析了影响机箱屏蔽效能的因素及改进措施。
The results show that the 'shielding' of the E-fie-Ids are caused by the region 2 field-aligned currents in our case, and under the distribution of the field-aligned currents used here the enhancement of Hall conductivities in the auroral zone may even weaken the 'shielding'. 结果表明,电场集中在极光区是由2区场向电流引起的.在本文所用的场向电流分布形式下,加上Pederson电导率的升高。
A common spin-forming technique for the shielding case has been discussed, considering the determination of blank, the design of model plate, the choice of spinning parameter and the spinning machine. 通过对毛坯尺寸确定、模板设计、旋压参数选择、旋压机床等等几方面对屏蔽罩零件的普旋成形工艺进行讨论;
The shielding effect of coil case is related to the field produced by the eddy currents. 线圈盒对磁场的屏蔽效应则与涡流产生的磁场有关。
Then attention is turned to the feasibility of isolating and shielding noise being sensitive to people, in the case of building composite structure consisting of phononic crystals. 探讨了构建声子晶体复合结构用于隔断和屏蔽人体敏感噪声谱的可行性。
In the 3C industry, the increasingly popular consumer mobile phones, including mobile phone industry has a very high profit value of metal parts – shielding case, the role of the shielding, anti-magnetic and dust. 在3C产业中,手机消费日趋大众化,其中手机产业中有一个利润值相当高的金属件&屏蔽罩,作用为屏蔽,防磁,防尘。