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- pulse frequency control 脉冲频率控制
- Switching Power Supply has three kinds of control circuits: Pulse Width Modulation (PWM), Pulse Frequency Modulation (PFM), Pulse Width and Frequency Modulation (PWM-PFM). 开关电源有三种控制方式：脉冲宽度调制(PWM)、脉冲频率调制(PFM)、脉冲宽度频率调制(PWM-PFM)。
- Simply inputting one pulse on the STEP input drives the motor one microstep.There are no phase sequence tables, high frequency control lines, or complex interfaces to program. 每次给步进电机一个脉冲信号，电机就会动作一步（整步，半步，四分之一步，八分之一步还是十六分之一步取决于两个逻辑输入）。
- Frequency control limits the number of stations you can tune into. 频率控制限制了你们能调谐进的台站数量。
- The paper introduces the composition,principle and dynamical performances of the closed loop VVVF system using magneto electric pulse tacho apparatus to constitute the slip frequency control. 介绍采用磁电脉冲测速构成转差频率控制的闭环变频调速系统的组成、原理及动态性能。
- J. A. Brown and G. R. Lockwood, “A Low-Cost, High Performance Pulse Generator for Ultrasound Imaging,” IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL, pp. 848-851, 2002. 叶人豪;“都卜勒超音波系统在微小振动频率及生物体器官微共振模拟系统量测之应用”;成功大学电机工程研究所硕士论文;民国九十一年六月.
- Hardware pulse distribution, and can be controlled stepper pulse frequency to the governor. 硬件脉冲分配方式，可以控制步进脉冲的频率来调速。
- Increase in intensity,retention time and the pulse frequency could enhance the efficiency. 增加磁场强度、处理时间和脉冲频率可以提高杀菌效果.
- Describes a new design of pulse frequency dividers in which timers NE556 and sequencecontrol unijunction transistors are used. 利用定时器NE556和程控单结晶体管，设计了一种新型多路脉冲分配器。
- Based on the model,the relationship between the main pulse frequency of supply power and the balanceable inter-electrode gap is discussed. 给出了脉冲电化学加工极间平衡间隙的数学模型,并据此讨论了高频群脉冲电化学加工中,电源主脉冲频率与平衡加工间隙的关系。
- Starting with your EQ flat, remove ALL be bottom end by turning the low frequency control to full cut. 在开始得时候;让你得eq保持平治(零)然后对低频做低切.
- pulse frequency modulation control system 脉冲调频控制系统
- Laser scribing of InSb with a Q switched Nd:YAG laser was studied in this paper and the relationship between pulse frequency and groove depth and width has been obtained. 研究了利用调 Q Nd： Y A G 激光对 In Sb 的激光划片，得出了刻槽深度和宽度与脉冲重复频率之间的关系。
- Starting with your EQ flat , remove ALL be bottom end by turning the low frequency control to full cut . 在开始得时候;让你得EQ保持平治(归零);然后对低频做低切.
- Multiple functions available : start/crater arc current, increase/decrease time,base/crest value current,pulse frequency,pulse rate,post flow time, HF welding. 功能丰富：起始/收弧电流、上升/下降时间、基值电流、峰直电流、脉冲频率、占空比、滞后关气时间分别可调，高频引弧。
- The imported frequency control of motor speed adapts to different printing speeds. 进口变频电机调速，适应不同印刷速度。
- NEB delays the time of first ovulation through inhibition of LH pulse frequency and low levels of blood glucose, insulin and insulin-like growth factor-I (IGF-I). NEB可通过抑制LH脉冲频率、降低血浆葡萄糖、胰岛素和胰岛素样生长-1(IGF-I)因子浓度,从而造成奶牛分娩后首次排卵间隔延长;
- This method is to control the stator current as a vector quantity on the basis of slip frequency control. 在这一控制方法中,定子电流在转差频率控制的基础上作为一个矢量进行控制。
- The Increase of pulse voltage and pulse frequency is beneficial to refinement and improvement of solidification structure of hypereutectic gray cast Iron. 脉冲电压的升高和脉冲频率的增大都有利于过共晶灰口铸铁凝固组织的细化和改善。
- Use bi-directional frequency control，spary guns oscillation and transportation speed can be adjustable freely. 采用双向变频调速;喷枪摆动及输送速度均可自由调节.
