The magnetic leakage field distribution above linear defects of a tube sample under the geomagnetic field was modeled according to magnetic dipole theory.
利用磁偶极子理论,建立稳恒微弱地磁场作用下管类试件线状缺陷段产生的漏磁场模型。
Under different longitudinal magnetization, the shape and characteristic of the zero value line of the normal component for the magnetic leakage field which was an important criteria...
分析了不同纵向磁化强度下,作为磁记忆检测方法重要判据的磁场法向零值线形状及分布特点。
The magnetic memory method, through examining the leakage magnetic field on the surface of the parts, can effectively find out the defects in fillet joints, which can diminish the leakage.
磁记忆法通过对部件表面漏磁场的检测,可以有效检测管座角焊缝中存在的缺陷,减少泄漏现象的发生。
Mining can not cause leakage of reservoir water body or affect infiltration flow field near the dam.
煤层开采不会造成库区水体渗漏,不会对大坝附近的渗流场产生影响。
On the basis of investigating groundwater dynamic feature and groundwater distribution feature, the distribution rule of seepage field is ascertained and leakage by-pass dam field is confirmed.
通过坝址两岸地下水动态特征和地下水分布特征研究,阐明了地下渗流场的分布规律并确定了产生绕坝渗漏原因和途径。
Ever since 1998, corrosion of drill rod and minor corrosion leakage have occurred in Pinghu oil Field in East China Sea.
从1998年开始,东海平湖油气田在钻井中接连出现了钻杆腐蚀与刺漏现象。
According to the features of dam temperature field under seepage or leakage conditions and evaluate the influence factors of temperature distribution of drill hole are evaluated.
从渗流和渗漏情况下堤坝温度场特征、温度场示踪基本原理,分析了影响钻孔温度分布的因素。
The causes for the serious leakage of the reinforced concrete face dam of Zhushuqiao Reservoir are analyzed based on the design, construction and field measured data.
根据设计、施工和现场检测资料,分析了株树桥水库钢筋混凝土面板堆石坝严重渗漏的原因。
Based on changes in electric property of underground media and natural potential field caused by landfill leakage, an online electricity monitoring system is designed to detect the leakage.
根据垃圾场渗滤液渗入地下后引起的地下介质电性变化及对自然电位场的改变,设计了用于垃圾填埋场渗滤液渗漏的在线电学监测系统。
In the case of small leakage or small size perforation of gathering pipeline, field patching approach is often adopted in doing rush repair.
当集输管道泄漏或穿孔尺寸比较小时,往往采用现场补焊的方法进行抢修。
Flow pattern and velocity field of air leakage in goaf.
采空区漏风流态及速度场。
The rotor bar resistance and slot leakage inductance considering frequency effect are gotten by mean of bar loss calculation and leakage magnetic field energy calculation.
通过直接计算导条损耗与漏磁场能量得出了计及频率影响时转子导条电阻与转子槽漏感。
The wake is mixing with the last rotor tip leakage vortex in the stator passage, leading to more substantial fluctuations in the flow field.
转子尾迹在静子通道内追赶上从前一转子叶片通道内下来的叶尖泄漏涡,二者的相互作用和掺混导致静子尖区更为复杂的二次流动。
The technical terms air leakage rate and air leakage coefficient are always used in boiler field.
推导并建立了“漏风率”与“漏风系数”的关系公式,以便于换算。
Furthermore, it has satisfactory computation precision due to the use of multi - section method for the calculation of leakage magnetic field and the circulating current losses.
同时,由于计算漏磁场和环流损耗时采用了多截面法,还具有较高的计算精度。
In this paper, the influence of tip leakage flow on the 3-d viscous flow field is investigated for different blade tip gap shapes under the condition of rotating hub or stationary hub.
本文针对几种不同形态的叶栅顶部间隙,在环壁转动与静止的不同情况下,研究间隙内的泄漏流动对三维粘性流场的影响。
Based on full current theory, derive formula of slot leakage reactance from magnetic field energy calculation.
采用全电流定理,由磁场能量的计算推导出槽漏抗计算公式。
The paper introduces the principle, implementation method, data analysis and application field of E-field inductive technology including its application in leakage detection of tanks.
介绍了利用电场感应技术进行储罐泄漏检测的原理、实现方法、试验数据分析及应用领域等问题。
The utility model relates to the technical field of a gas leakage alarm for a fire extinguisher.
本实用新型涉及灭火器气体泄漏报警技术领域。
Research results show:(1)the original temperature field of cement layer surface were quickly destroyed in initial coil pipe leakage, while the changes of floor surface were weaker;
研究结果表明:(1)盘管泄漏初期,水泥层表面原始温度场迅速被破坏,而整个地板表面变化较弱;
In moderate field region, traps can be filled by both FN current and direct tunneling of electron into the traps. It results in a quasi-saturation in the leakage current.
在中等电场区域,注入电子能通过FN电流和直接隧穿到达能被填充的陷阱,从而使漏电流产生准态饱和。
Finally, a series of field and laboratory tests have been carried out with this sample machine, which provides data support for further study on the rule of insulator leakage pulse current.
最后,利用该样机,完成了一系列线路实测和实验室试验,为进一步研究绝缘子泄漏脉冲电流的规律提供数据支持。
The third part is about the environmental risk evaluation and the risk identification of the red mud residue field, as well as risk-influence analysis and leakage forecast of the residue field.
第三部分为赤泥渣场的环境风险评价,对赤泥渣场进行风险识别,风险影响分析和渣场渗漏预测。
To hence calculation precision, the leakage should be considered, and the leakage coefficients of permanent field and excited one are calculated separately by 2-d FEM of the magnetic bearing.
为精确计算磁轴承性能,需考虑漏磁的影响,通过分析该磁轴承的二维磁场,分别计算出永磁磁场和电励磁磁场的漏磁系数。
The field test results indicate that the proposed method reduces the error of leakage locating.
实际检测结果表明,该方法减小了泄漏定位的误差。
However, when oxide thickness increased to a fixed value at a specific oxide field, the increase in gate leakage current caused by a single oxygen vacancy could be neglected.
但当厚度在特定值及特定电场下时,单个氧空位引起的栅漏电流增加可以忽略。
The magnetic seeding element has the advantages of lowering magnetic leakage and improving magnetic-field strength and magnetic energy utilization of magnetic end faces thereof.
这种磁吸式排种元件降低了漏磁率,提高了排种元件磁吸端面的磁场强度和磁能利用率。
So it is an urgent task to analyze the flow field and air leakage ratio of ring cooler.
因此,环式冷却机的流场分析和漏风率测试研究是一个急待解决的课题。
Area which was floor steady state temperature area had weak effect by leakage, the temperature was mainly controlled by the original floor temperature field.
受泄漏影响较弱区域为3区地板稳态温度区,其温度主要由原始地板温度场控制。
With the triode working characteristic in saturation field we implemented the conversion from constant-current charge to tiny-current charge and decreased leakage.
利用三极管在饱和区的工作特性,方便地实现了由恒流充电至涓流充电的转换,减不了充电过程中的水损耗。
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