starting frequency

Through starting DDS, the output of corresponding frequency is steady at level of about 6V after sending the data of RAM to DDS, and then data are sent to LED for display.

通过启动DDS，把内存缓存区的数据送到DDS后输出相应的频率，使输出信号峰-峰值稳定在6V左右，并送到LED（发光二极管）显示器进行显示。

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The paper introduces principle and application of variable frequency starting system of high voltage synchronous motor by UKL "Khemz" import.

介绍一种由乌克兰汉姆斯引进的高压同步电动机的变频起动装置。

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Dynamic benefits come from its fast starting and flexible operation, including frequency regulation, synchronous condenser operation, fast coverage of steep load gradient and synchronous spinning reserve.

动态效益则是由于蓄能电站启动迅速、运行灵活，在承担系统调频、调相、负荷调整和紧急事故备用等动态任务，满足系统动态运行需要而产生的经济效益。

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The slewing mechanism: Stepless speed regulated and frequency control make starting and braking.

回转机制: 无级调速调节和频率控制使启动和刹车.

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The spectral function P(ω) of the spin pair correlation function in a coupled quadrupole system are evaluated using the pade approximation starting from the exact derivation of frequency second and fourth order moments at high temperature limit.

精确计算出四级耦合系统中高温极限情况的二阶、四阶级矩，在Pade近似下获得自旋对关联函数的谱函数P（ω）。

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Application study is made by starting with variant frequency the diesel engine set of diesel locomotive.

通过变频启动内燃机车柴油发电机组试验对该方案进行了应用研究。

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Time frequency information of starting period is very useful to diagnosis of electric motors.

电机起动过程中有关电机状态时频信息对电机故障诊断有很大的作用。

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In this paper, the wireless data radio takes the GPS differential positioning as a starting point, takes the FSK modulation mode, can complete the wireless transmission of data in S frequency band with the time division duplex operation mode.

本文设计的无线数传电台以用于GPS差分定位为出发点，采用FSK的调制方式，能在S频段以时分双工的工作模式完成数据的无线传输。

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