查询词典 magnetic performance

Nanjing University of Aeronautics and Astronautics,Nanjing,210016Switching power amplifier of magnetic bearing was a nonlinear system.The performance of the switching power amplifier affected the stability of the magnetic bearing control system.A way of establishing the closed-loop system model of magnetic bearing was presented.

磁悬浮轴承开关功率放大器系统为一非线性系统，开关功率放大器的性能影响磁悬浮轴承控制系统的稳定性，为此，提出了一种建立磁悬浮轴承开关功率放大器系统模型的方法。

The performance of magnetic suspension is determined mainly by its control system. Due to the inherent nonlinearities and open-loop instability of the magnetic suspension system, as well as the problem of uncertainties caused by parameter variety and disturbance, increase the difficulty of magnetic suspension control technology.

悬浮性能的好坏主要取决于控制系统的设计；由于悬浮系统本身固有的非线性特性和开环不稳定性，以及参数摄动和外干扰引起的不确定性等问题，增加了悬浮控制技术的难度。

The performance of magnetic levitation is determined mainly by the characteristic of its controller and solving the problems of the high precision, high esponse frequency, output immune from the disturbance, the parameter perturbation and the uncertain factors from outside is very difficult. The traditional methods can not meet the needs of the system. So it has great significance to study the control method of magnetic levitation.

磁悬浮系统性能的优劣很大程度上取决于控制器的特性，高精度、高响应频率和输出不受外界干扰的特性以及磁悬浮中参数的摄动和外界不确定的干扰因素都是难以解决的棘手问题，传统控制难以满足系统要求，因此对控制方法的研究有其非常重要的意义。

The performance of magnetic levitation is determined mainly by the characteristic of its controller and solving the problems of the high precision, high response frequency, output immune from the disturbance, the parameter perturbation and the uncertain factors from outside is very difficult. The traditional methods can not meet the needs of the system. So it has great significance to study the control method of magnetic levitation.

磁悬浮系统性能的优劣很大程度上取决于控制器的特性，高精度、高响应频率和输出不受外界干扰的特性以及磁悬浮中参数的摄动和外界不确定的干扰因素都是难以解决的棘手问题，传统控制难以满足系统要求，因此对控制方法的研究有其非常重要的意义。

Firstly, a scalar and vector potential analysis models of tooth-layer magnetic field in a two-degree-of-freedom motor is developed, which is the same as standard hybrid step motor. By applying the finite element method, the distribution of the tooth-layer magnetic field is studied in detail. It provides an effective means for further calculation of performance and parameters of the motor.

首先，对两自由度电机产生转矩的关键部分——齿层区域的磁场进行了细致深入的分析，提出了齿层磁场的标量位和向量位分析模型，并通过有限元的数值计算，对各种情况下齿层磁场的分布规律从微观上进行了形象的分析和研究，为完整电机的进一步计算提供了有力的工具。

MPH plastic magnetic pump complies with JB/T7742-1995Standard for Small Magnetic Transmission Centrifugal Pump. Its flow-through parts adopt PPS with corrosion resistance to most acid, alkali and salt (except oxidable acid like strong sul-furic acid, nitric acid and aqua regia). Its performance is close to the chemical performance of F4, which can resist to most organic solvents under 100℃, especially to the mixture of gas and carbinol. Thus it is an ideal pump for acid and alkali industries.

MPH型塑料磁力泵符合JB/T 7742-1995《小型磁力传动离心泵》标准，过流部件采用聚苯硫醚，不受大多数酸、碱、盐的侵蚀(除氧化性酸如浓硫酸、硝酸和王水等)，其性能接近于聚四氟乙烯的化学性能，在100℃以下能耐大多数有机溶剂，特别能耐汽油和甲醇的混和液，是酸碱工业中的理想用泵。

The magnetic nanocapsules with good physicochemical performance are obtained through vaporizing various magnetic metals in the methane atmosphere.

在甲烷气氛中蒸发各种磁性金属可获得具有良好物理化学性能的磁性纳米胶囊。

Maglev health beauty weight loss health beds is a Magnetic support for a complex electronic and mechanical high-tech products of the alternative, suspended in the air bed, its role as a magnet beneath the bedstead and bed base interactions of magnets bedstead bed base and leave them suspended, and then to bed magnetic base of the bedstead can transform the whole magnetic vibration; before and after; around; rocking movement, etc.; in the bedstead campaign process, without any linkage, or gears or belts, twisted Lian passive body without motor or hydraulic arm of the initiative institutions, and its actuation process without any oil or exhaust noise and pollution generation, magnetic levitation force bed, and consumption of reactive small, control is simple, safe and reliable, such a novel concept, design reasonable, full-featured, performance, a wide range of applications; can be described as a collection: physical therapy, fitness, leisure, sleep and other motor function as one design.

磁悬浮养生美容减肥健康床是一种以磁力支撑，为一种电子与机械复合之另类高科技产品，悬浮於空气中的床，其作用为床架下方的磁体与床底座磁体相互作用而使床架离开床底座而悬浮起来，再以床底座磁极之变换而使床架能做上下磁震动；前后；左右；摇摆等运动；在床架的运动过程中，无需任何连杆，或齿轮或皮带，绞炼之被动机构，亦无需马达或油压臂之主动机构，且其作动过程中无任何噪音与油污或废气的污染产生，磁悬浮床作用力大，耗功小，控制简便，安全可靠，此种构思新颖，设计合理，功能齐全，性能优良，应用广泛；可谓集合：理疗，健身，休憩，睡眠等多种运动功能为一体的设计。

Its merit of higher energy density results in its wide use in modern industry and electronic technology such as: loudspeakers, high performance steppers, DC′s, servos, linear motors, generators, magnetic resonance′s, magnetic separations, iron removers, magnetic suspension, computer ＆car parts, communication equipment, machine meters, wax ＆ leakage resistance .

高能量密度的优点使钕铁硼永磁材料在现代工业和电子技术中获得了广泛应用。如：电动机、发电机、核磁共振、磁选机、磁传动、磁悬浮、除铁器、防泄漏、仪器仪表、医疗器械、音响设备、汽车行业、通讯设备、计算机等行业和领域。

Its merit of higher energy density results in its wide use in modern industry and electronic technology such as: loudspeakers, high performance steppers, D C′ s, servos, linear motors, generators, magnetic resonanc e′ s, magnetic separations, iron removers, magnetic suspension, computer ＆ car parts, communication equipment, machine meters, wax ＆ leakage resistance .

电动机、发电机、电动自行车电机、核磁共振、磁选机、磁悬浮、除铁器、防泄漏阀门、仪器仪表、医疗保健器械、音响设备、手机、汽车行业、电子油门、通讯设备、计算机、礼品盒、箱包扣、衣服扣等行业和领域。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。