文中导出了计算直流电机换向器片间电压分布曲线的基本公式和试验验证；
Basic formulas for the calculation of bar to bar voltage distributing curve of DC motor commutator are derived and test-verified.
开关电源经试验验证性能良好，直流电压输出纹波不大于0.3%，效率高于85%。
The variety of the output DC voltage is less than 0.3% and the efficiency is higher than 85%.
介绍了俄罗斯两油田用直流电场提高原油采收率的技术措施和试验情况。
This paper introduced the technological measures and tests of increasing recovery efficiency with direct electric field conducted in two oil fields of Russia.
通过大量室内试验，详细分析研究了外加直流电场作用下对油水两相渗流规律及储层岩石性质的影响。
The effects of external direct electric field on the seepage characteristics of oil and water phases and rock property were studied by means of a great many of laboratory tests.
本文叙述在电感储能电路系统中，采用人工过零方法开断脉冲高压强流直流电路时，开断电路参数的匹配，并给出了用真空开关进行试验的结果。
This paper describes the breaking research in HVDC circuit with inductor-energy-storing aad high implue current , also gives the parameter matching of breaking circuit and the test results.
对该功率因数校正电路进行了分析和设计，试验结果表明，该直流电源电路达到了很高的功率因数。
This paper analyse and design the boost PFC, the experiment result show that DC circuit attain high high power factor.
直流电回馈加载是一项广泛应用于电机试验、变速箱试验、发动机试验等的先进技术。
DC feedback loading is an advanced technology that is widely used in motor test, gearbox test, engine test etc.
直流电压试验作为一种对油浸纸绝缘电缆非常有效的方法应用至今，但它对塑料绝缘电缆是无效而且有害的。
The DC test, which is an effective means for the diagnostics of oil impregnated paper insulated cable, is still used even now, but it is ineffective and harmful for the plastic insulated cable.
阐述航空高压270V稀土永磁直流电动机的设计原则、工艺措施及计算和试验结果。
This paper presents the designing rules of high voltage 270V rare earth permanent magnet DC motor, the measure of technology and the results of calculation and tests.
试验结果表明这种直流电动机的换向性能是较好的。
The test results show that commutation performance of the D. C. motor is better.
本文主要介绍了监测直流接触器的机械寿命试验直流电源设备在选用时注意的事项，论述了相关要求。
This article mostly introduces the adoption announcements of the life testing equipment that used in! DC contactor production surveillance, and discusses correlated requirement.
采用自行研制的试验装置，用直流电弧等离子体蒸发法制备了高纯度的纳米镍粉。
The pure nickel nanopowders were prepared by DC arc plasma evaporation method using self-designed and fabricated experimental apparatus.
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.
本文采用了PC机、GMC2407运动控制专业平台来构成一个基于DSP的无刷直流电动机控制的试验平台。
In this paper, a brushless motor control platform which is based on DSP and made of PC and GMC2407 is adopted.
采用位移门槛电压控制焊接过程，对Q 235 - A钢进行了变压式和等压式扁钢带直流电阻对焊试验。
A displacement threshold was used to control DC upset butt welding process, and constant pressure and varied pressure tests were carried out on Q235 a steel strips.
研究了直流电封闭加载技术的实现，设计QR 512系列手动变速箱交检加载试验台。
Investigates the realization of DC electrical-closed loading technology and designs the QR512 MT gearbox test bench.
利用纳秒级脉冲电源、毫微秒级脉冲电源和直流电源，进行了电解加工试验。
Nickel is electrochemical micromachininged using nanosecond pulse power, millisecond pulse power and direct current power.
首先，在所搭建的试验平台上，用软件设计了无刷直流电动机的全数字双闭环调速控制，验证了DSP控制器的高性能、高精度等优点。
First, speed control of motor based on DSP is designed with this platform, which approves good performance and good precision of DSP controller.
通过加速试验方法研究了直流电流作用下混凝土筛余砂浆的溶蚀性能，并建立了其与广州地铁工程混凝土在杂散电流下的溶蚀性能之间的关系。
The dissoluble corrosion of Guangzhou metro engineering concrete in direct current was studied by an accelerated DC dissolving test of the residue mortar and correlating it with concrete.
以镀层表面形貌和显微硬度为考核指标，采用正交试验法优选了脉冲镀银参数，采用优选的脉冲参数电镀与直流电镀的银镀层作了比较。
Acoording to the surface appearance and the microhardness of coating, the parameters of silver plating with pulse current are optimized by the orthorhombic experiment.
根据XLPE绝缘电缆用直流电压进行现场试验的经验，要求开发新的方法。
There exist major defects in conventional site tests of XLPE insulated cables with DC voltage, therefore, a new method with better testing results must be found.
文章介绍了该混合动力电动汽车用稀土永磁无刷直流电机的结构特点和设计方法，通过样机试验验证了设计的合理性。
The structure peculiarity and design method of this brushless DC motor for HEV are introduced. It is shown that the design is rational by prototype trial of the brushless DC motor.
将稀土永磁无刷直流电机应用于试验车并进行了近千公里的道路试验，结果良好。对一种液体循环式锌-空气电池做了实验室与道路试验并进行了性能分析和评价。
A rare earth permanent magnetism brushless direct current motor is set in the test-EV and runs in order during a course of the test on roads near one thousand kilometers.
介绍采煤机牵引部直流电力回馈加载试验台的组成、工作原理及特点，加载方法和控制，测试数据的采集、输出及显示。
Introduced a new implementing method for loading cutting part with high power of shearer, and expound working theory of loading test, main components and main technical feature.
实验结果证实该方案能很好的解决直流电源出厂试验问题。
The experimental results verify that some questions in some applications such as DC power source performance test are well solved.
本文设计是一套基于PIC单片机的直流电机控制器，作为其配套的试验装置。
This design is a system of DC motor multiple speeds Based on PIC MCU is designed, as its necessary test equipment.
文中介绍了该无刷直流电机的设计和控制方法，通过样机的试验和应用效果良好。
The design method of this brushless DC motor speed-adjustable system is introduced. It is shown that the design is rational by prototype trial. The fine applying result is obtained in practice.
本文从解析法、有限元分析和试验三方面探讨了直流电位法用于缺口问题的有效性。
In this paper, the validity of DC potential drop method applied to notch problem has been investigated by means of analytical method, finite element analysis, and experimental method.
本发明具有以下优点：需要新建的整流设备数量大大减少，只需在现有设备的基础上增加一组容量很小的直流电源即可满足试验用电的要求；
The low voltage DC current of the examination electrolyte tank has two power supplies that one is the existing DC power supply, and the other is a new added DC power supply.
本发明具有以下优点：需要新建的整流设备数量大大减少，只需在现有设备的基础上增加一组容量很小的直流电源即可满足试验用电的要求；
The low voltage DC current of the examination electrolyte tank has two power supplies that one is the existing DC power supply, and the other is a new added DC power supply.
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