电阻的

A small generator called a magneto is contained within the megohmmeter housings.themagneto furnishes the power for the instrument,just as batteries do for for an ohmmeter.the magneto can be hand powered or driven by batteries or other sources of electricity.megohmmeters have many different voltage ratings.some of the most common are designed to operate on oine of the following values:500V,1000V,and 10000V.the amount of volage the magneto should generate depends upon the ohmic value and the type ofresistance being measured.

兆欧计内置了一种小型磁发电机。磁发电机为兆欧计供电，就如同电池为欧姆计提供电力一样。磁发电机可以手摇，电池或者其他电源驱动。兆欧计有许多不同的电压等级。一些最常用的兆欧计电压为（原文此处有错，采用意译）：500伏，1000伏，和10000伏。磁发电机需产生的电压值取决于待测电阻值和电阻的类型。

This paper discusses the methods and instruments frequently used in the multipoint grounding resistance measurement,and points out the shortcomings in practice.

介绍了几种常用的多点接地电阻的测量方法与仪器，指出其存在的缺陷；提出一种新的测量模型和方法，通过实测证实了有效性。

The design and make of a simple electric arc plasma generator;2. Mathematics expressions of arc curr en t are deduced considering the circuit resistance of the arc furnace,based on the assumption that electric arc voltage follows rectangle wave,and the elect ric parameters related to continuous and non-continuous electric arc are obta ined.

推导了在假定电弧电压为矩形波条件下，电弧电流的瞬时值数学表达式，明确了电弧连续性与随操作参数I/Is之间关系，推导中考虑了线路电阻的影响；分别求得了电弧连续与不连续情况下的无量纲电气参数；得到了电弧连续性准则；给出了计算临界功率因数的线性高精度近似计算式。

Therefore, compensation for the drift should be given; the main reason for the temperature drift is theoretically analyzed which lies in the temperature coefficient of the coil resistance, and then a new compensation method utilizing non-inductive winding is presented and illustrated in an example; the experimental results show that the sensor obtains good compensation effects under 20-90℃, and the temperature stability reaches 0.7%.

电涡流传感器的温度漂移制约了其测试精度，因此需要给以温度补偿；理论分析出导致传感器温度漂移的主要原因在于线圈电阻的温度系数过大，因此提出采用无感线圈进行补偿的方法，并给出了设计实例；实验表明该方法在20~90℃度范围内补偿效果良好，温度稳定性达到0.7%；该方法简单、有效且成本低，可扩展应用于其他类型电涡流传感器。

The high TMR value of 9050% can be attributed to the use of the La0.96Sr0.04MnO3 barrier which can minimizes interfacial disorder and strain.

结果表明：高质量的中间绝缘层和各层间良好的晶格匹配是产生9050%的巨大隧穿磁电阻的关键。

The Au/AuGe(88/12)/Au back-contact metal structure was deposited on the GaAs substrate using an electron-beam evaporator. Various post thermal treatments were employed including conventional furnace and rapid thermal annealing. It was found that the outer Au layer thickness and furnace annealing temperature had large effects on the specific contact resistance.

在实验中我们在砷化镓基板背面进行蒸镀背金结构，而此背金结构是由三层金属所组成，分别为金/锗(12%)金(88%)/金，我们控制最外层金的厚度来量测与观察特徵接触电阻的大小，同时改变炉管加热的温度与快速热退火系统做比较，背金结构之元素分布比较可由欧杰电子分析得到，而扫描式电子显微镜可分析其两者之间的表面形貌差异。

Some problems exist in the traditional protection method: it may perform maloperation in time of power swing; the existence of transition resistance may result in tripping missing or maloperation.

但是距离保护的性能也存在一些问题：当系统发生振荡时距离保护可能会误动作，过渡电阻的存在可能会使距离保护误动或拒动等等，这些对距离保护的性能有很大的影响并且难以避免。

It is necessary to study the regularity of the back corona which is one of the chief hitches in operation of electrostatic precipitator.

反电晕是影响电除尘器正常运行的主要障碍之一，本文在实验室内的电除尘器模拟台上，利用高比电阻的有机玻璃板间的窄缝空气隙，在冷态条件下产生反电晕。

Electrical insulators are materials that are most resistant to the flow of electrons through them.

电的绝缘体是对流经他们的电子流有最大的电阻的物质。

That is attributable to the fall of the film resistance of the passive film and the decrease of content of chromium oxides in the passive film.

硫离子的浓度越大，测得的光电流越大，而Eg越小，这可归因于钝化膜膜电阻的降低及钝化膜中氧化铬含量的减少。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。