• 数字集成电路测试内容包括逻辑功能测试、直流参数测试交流参数测试。

    Digital IC test content includes logic functional test, test of DC parameters and test of AC parameters.

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  • 最大正向整流电流参数功率有关所选二极管额定电流值至少交流母线峰值电流3以上

    Biggest positive the parameters associated with the lamp power rectifier current, the rated current value of the selected diode should be a peak current in ac bus at least more than 3 times.

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  • 连接交流电源之前,请验证交流电压相位频率是否控制装置外壳参数的相应数据相同。

    Verify ac line voltage phase and frequency with the controller data plate on the enclosure door prior to connecting ac power.

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  • 论述了交流调谐滤波器工作原理固有缺点,说明滤波器参数变化所引起导致滤波性能恶化的主要原因

    The principle and the inherent demerits of tuned AC filter are discussed, the detuning due to variation of filter parameters is the main cause of deterioration of filtering performance.

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  • 系统采用软件方式实时计算交流传动系统运行参数包括变压器四象限整流器直流中间回路逆变器电机负载

    Its software is designed to calculate the running parameters of the AC drive system, including transformer, quadrant rectifier, DC circuit, inverter, AC motor and train load.

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  • 介绍交流接触器电气参数自动化测试装置测试原理测试方法,给出了相应的测试结果

    This paper describes the design and principle of automatic testing device for electrical parameters of AC contactor. The testing result is given.

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  • 数字式工频交流参数多用i2c总线数字式电位器ad5242核心采样算法一点两点多点

    I2C bus digital potentiometer AD5242 was used as core of digital alternating current parameter multi-function meter, it has a point, two point and multiple point sampling arithmetic.

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  • 交流调速中直接转控制具有坐标变换运算量小电机参数变化影响特点

    Direct Torque Control (DTC) has the advantages of less reference frame commutation-computation and less influence by motor parameter variations in AC drives system.

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  • 交流采样测量装置作为电网测量参数在线测量仪器具有较好的准确度稳定性

    Ac sampling measurement unit has better accuracy and stability as the online measuring instrument of the electrical parameters of power network.

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  • 感应电机高性能交流调速方法电机参数准确性严重影响着电机控制系统控制品质

    The precise motor parameters affect the quality of the motor control system seriously in high performance ac drives of induction machine.

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  • 最佳磁场参数作用下无论是直流磁场还是交流磁场,堆焊层中硬质细小成“六角形分布此时堆焊金属硬度磨损量均达到最佳状态。

    Regardless of DC or AC magnetic field, the hard phase in weld metal overlay is fine and distributed "the hexagon" in optimum parameters, then hardness and wear extent in weld metal overlay are higher.

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  • 介绍交流变频调速技术龙门刨床电气改造中的应用总体改造方案有关参数设置

    The paper introduces the application, main alteration plan and the setting of relational parameters of technique of alternating current frequency conversion in Longmen planer′s electrical alteration.

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  • 本文讨论了直流输电交流滤波器选型参数优化

    Selection of the type of AC filters used in HVDC Projects and optimization of their parameters are discussed.

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  • 论述了以数字控制器DMC300A核心数字式交流伺服系统硬件软件设计,对设计过程中所涉及重要参数给出了设定方法

    The software and hardware of a digital AC servo system using a digital controller DMC300A as the control center is designed. This method to obtain some important parameters is proposed.

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  • 介绍铁合金电炉单片机电力参数交流采样方法

    It introduces the methods of alternating current sampling for the power parameter of sing chip computer in ferroalloys furnace.

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  • 目前,交流电力测功机进行发动机性能试验重要装置,其优点在于试验条件容易控制,参数便于采集处理,测量精度较高

    AC electrical dynamometer is an important device for engine test with easy-controlled testing conditions, easy-collected and managed parameters as well as high measuring precision.

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  • 击穿破坏电压交流介电容器主要技术参数也是最难解决的技术难题

    Breakdown voltage is not only a key characteristic of ac ceramic capacitors, but also the most difficult technical barrier.

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  • 本文随后交流滤波器参数整定计算进行研究

    The following chapter has a thorough research on the parameter calculation of ac filters.

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  • 交流通道设计如何合理选择热通道宽度风口布置玻璃种类三个关键性参数设计经验

    The design experience of how to choose three key parameters: the width of thermal channel, the layout of inlet and outlet and the type of glass is discussed.

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  • 复合材料交流电性能参数频率变化规律表明活化炭黑聚丙烯基体中形成导电网络

    The variation of ac electrical properties as a function of frequency shows that the conduction network of carbon black has been formed in the composites.

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  • 以直动式B系列交流接触为例,就结构动态特征设计参数改变灵敏程度进行分析

    The paper discusses the dynamical characteristic of the B-contactor structure, which is a primary analysis and study of the sensitivity of the design parameter variance.

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  • 计算电缆群载流量时,交流电阻一个重要参数其中邻近效应是计算交流电阻的一部分。

    Ac resistance of cable conductor is an important factor to calculate the ampacity of cable bundles, and proximity effect factor is an important parameter to affect ac resistance.

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  • 交流系统受到扰动通过跟踪交流系统某些参数变化调节直流输送有功功率从而达到阻尼整个系统功率振荡的目的。

    Following up the change of some parameters in ac systems, it can regulate the active power transmitted by DC link and damp power oscillation in systems.

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  • 测量测量容量相当其它交流电动机参数

    The test meter also can be used to test electric parameters of other alternatingmotors which has corresponding capacities.

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  • 内置整流器电压调节器汽车交流发电机,其建压转速一项重要性能参数

    The speed of voltage buildup is an important performance parameter for the automotive alternator.

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  • 主要思想就是一个周期内若干交流信号瞬时描述交流信号波形计算有效值其它有关参数

    Its main ideas are that the AC waves are described through some AC instantaneous values in a period, and then RMS values and other concerned parameters are worked out.

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  • 方法不仅能够同时诊断元件的故障参数偏移故障,而且能够同时运用于直流测试交流测试。

    The presented approach can not only diagnose both catastrophic faults and parametric faults, but also can be applied for both DC test and ac test.

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  • 大规模交直流网络高压直流控制保护系统进行参数优化设计保证灵活交流输电系统暂态性稳定性良好的重要手段

    The optimal design of HVDC control and protection parameters in the case of large-scale ac and DC power system network is a valid measure to ensure achieving good transient and stable performance.

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  • 大规模交直流网络高压直流控制保护系统进行参数优化设计保证灵活交流输电系统暂态性稳定性良好的重要手段

    The optimal design of HVDC control and protection parameters in the case of large-scale ac and DC power system network is a valid measure to ensure achieving good transient and stable performance.

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