屏蔽罩

熔体与绝缘瓷套之间还设有金属屏蔽罩。

A metal screening can is provided between the weld flux and the insulating porcelain bushing .

HVDC换流阀系统屏蔽罩的电场分析和电容参数提取

Electric Field Analysis and Parameter Extraction of Shielding Cover of HVDC Converter Valve System

通过对电源布线设计原则、PCB设计中完整性原则、合理的布线规则、金属屏蔽罩法的分析，阐述了抗干扰的技术方法和措施。

The author illustrates antijamming technical ways and measures by analyzing the design principle of power wire layout , PCB design integrality , rational wire layout and mode of metal screen .

几十次大电流实验后，解剖开圆盘型TVS，发现主电极的阴极、阳极表面，以及金属屏蔽罩烧蚀都很严重。

After a dozen times of high current experiment , when the disc-type TVS were dissected , it has been found that cathode , anode and metal shielding were severely eroded .

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。

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 .

本文详细介绍了FT-619型肾图仪的准直器设计，屏蔽罩设计、探测效率及国内外同类仪器对比情况等。

It is also described in this article in detail that the design of the lead collimator and the shielding as well as the detection efficiency have achieved the optimum level and made a comparison with foreign products .

推导了含悬浮电极时的轴对称结构的有限元方程，并利用该方法计算了550kV六氟化硫终端中有无悬浮电位屏蔽罩时的电场分布。

FE equation of the electric field in axial symmetrical structure employing the suspending electrode was derived and the FEM for analyzing the electric field distribution in the sulfur hexafluoride ( SF6 ) terminations was employed in this paper .

真空灭弧室中屏蔽罩电位动态测试及分析

Dynamic Test and Analysis of Shield Potential in Vacuum Interrupters

屏蔽罩对真空灭弧室性能影响的研究

Research on the Effects of Shield on the Properties of Vacuum Interrupter

辐射屏蔽罩一般用于降低辐射误差。

Radiation shields are commonly used to reduce radiation errors .

屏蔽罩工艺改进及模具的优化设计

Technological Improvement and Optimized Die Design for Shield Case

真空灭弧室屏蔽罩电位的测试方法

Measurement of Potential at the Shield of Vacuum Interrupter

真空灭弧室主屏蔽罩电位静态测量分析

Static Potential Measurement on the Shield of Vacuum Interrupters

试验结果表明，该磁屏蔽罩可有效地提高真空灭弧室的开断性能。

The experimental results show this magnetic shield case can improve the interrupting performance effectively .

用合适的工具压出夹紧垫圈，并拆下罩和带铆钉螺栓的屏蔽罩。

Press off clamping washers with a suitable tool , remove shield and shield cover with rivet bolt .

屏蔽罩能够调节感应器内的磁场分布，使感应器内的熔体处于合理状态；

Screen can regulate the magnetic flux density distribution to assure melt in ideal state in shaping inductor .

实验结果表明，对于合适的屏蔽罩的参数，降噪效果达5分贝以上。

Experimental results show that the noise can be generally reduced by more than 5 dB at the right shield parameters .

最后从理论上分析了引起屏蔽罩衰减误差的若干因素，给出了这些影响因素对衰减误差的影响程度。

Next , through theoretically analyzing the factors that cause errors in the attenuation , degrees of their effect on the attenuation are given .

对电熔爆机床工作时所产生的电磁干扰进行了分析，并在计算、测量、分析的基础上，提出了防护的措施，即用电磁屏蔽罩体来控制电磁辐射。

On the basis of calculation , measurement and analysis , it puts forth the protecting measures in the electro-magnetic radiation is controlled by electro-magnetic shielding .

因而提出了一种磁屏蔽罩，以避免真空电弧受到外部磁场的影响。

A kind of magnetic shield case , which can prevent the arc from being affected by the external magnetic field , is developed in this paper .

当真空灭弧室的真空度劣化时，其内部触头电极与屏蔽罩间隙的放电电流会逐渐增大，且预放电电流含有高频脉冲信号。

When vacuum pressure deteriorates , pre-discharge current between electrodes and shield will increase gradually with the operation of inner electrods and contains high frequency impulse signals .

结果表明，屏蔽罩虽然使用方便，但对薄壁结构表面声辐射这类抗性很强的声场。

The results indicate that these shades are improper for measuring intensity of sound radiated from a thin walled structural surface , which has strong reactive sound field .

介绍了空空导弹总体试验中引信屏蔽罩收发隔离度、正向传输插损的标定技术和引信启动特性测试方法。

Introduces the calibration technique of fuze shielding transmit-receive isolation , forward transmission and the test method of fuze initiation property in the air to air missile system test .

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。

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 .

为了深入了解真空电弧的引燃过程，测量了直流真空电弧起弧阶段的电弧电压、屏蔽罩电位以及屏蔽罩收集离子电流等有关参数。

Some parameters as initial arc voltage , potential of shield and ionic current gathered by the shield are measured for further understanding the ignition process of vacuum arc .

应用等效图示的方法，分析求解平行板电容器插入电介质和加上屏蔽罩后的电容。

Apply the method of equivalent diagrams , analyze and solve the capacitance of the parallel board capacitor when insert dielectric in it or put shield cover on it .

试验发现真空度下降到一定值时屏蔽罩上形成的交流电位幅值会发生变化，同时屏蔽罩上还会有直流电位生成。

In the process of experiment , it is found that alternating potential ( AP ) on shielding has changed when the vacuum degree descends to a certain degree .

探讨了利用这两种声发射波进行真空断路器真空度在线检测的可能性，分析及实验结果显示利用电极对屏蔽罩放电声发射原理在线检测真空度是一个可行的方法。

The probability of on-line monitoring vacuum of vacuum breaker with the two acoustic emissions is researched . The analytical and experimental results show that the second method is feasible .

探讨了磁极数、气隙、永磁材料、工作温度、退磁和屏蔽罩对永磁齿轮传递最大转矩的影响。

The influence on the maximum transmittable torque from the number of magnetic poles , air gap , permanent materials , operating temperature , demagnetization and magnetic masking is studied .

室内的系统实验研究表明，采用γ透射法测量土壤含水量时，在探头的前端设置铅屏蔽罩对提高层间分辨率及测量精度极为有效。

The effects of thickness and collimator diameter of the lead probe shield on spatial resolution of soil water content measured by γ - ray attenuation method was studied experimentally .