At the same time using Holzer sensors will be converted into pulse frequency motor speed feedback to the MCU, realize the speed closed-loop control, to achieve speed detection.
同时利用霍尔传感器将电机速度转换成脉冲频率反馈到单片机中，实现转速闭环控制，达到转速检测目的。
In order to obtain the dynamic model of the process to be used by robust PID, closed-loop model identification algorithm in frequency domain is researched.
为了获得鲁棒pid参数整定所需的过程模型，进行了闭环频域模型辨识的研究。
The simulation results show the open-loop and closed-loop frequency responses, output saturation, and the slew-rate of operational amplifier are truly reflected by this model.
仿真结果显示，运放开环与闭环时的频率响应、输出饱和、转换速率等特性得到了真实的反映。
The algorithmic relaxes the strict limit on sample frequency, and can guarantee SGUUB(semi-global uniform ultimate boundedness) of the closed-loop system.
该算法对采样频率无严格限制，最终可确保系统闭环半全局一致有界收敛。
The high frequency gain of the regulator is limited to suppress the high frequency oscillation of the control signal while assigning the closed-loop poles.
在配置闭环极点的同时，对调节器的高频增益加以限制，以减弱控制信号的高频振荡。
Then the comprehensive evaluation and an optimum design method of active safety in the closed-loop system are provided by using the statistical analysis in frequency domain.
应用频域统计分析方法，提出闭环系统主动安全性的综合评价与优化设计方法。
Using this virtual instrument, the frequency characteristics of both open-loop system and closed-loop system can be measured.
设计的虚拟仪器既适用于对开环系统又适用于对闭环系统的频率特性进行测试。
Each module is controlled by voltage current two closed loops. The common voltage loop controls system output voltage & frequency, and generates a common reference current signal.
三台航空静止变流器模块均为电压、电流双环控制，通过公用电压调节器稳定并联系统的输出电压及频率，同时产生统一的模块电流给定信号。
By adjustment to control signal, systems might realize variable voltage, variable frequency, steady voltage, steady frequency closed loop control.
通过对控制信号的调整，系统可实现变压、变频、稳压、稳频的闭环控制。
The phase-locked system is a closed loop automatic control system that can follow the frequency and phase of the input signals.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
Utilizing the information observed, a new type of slip frequency controlled torque-speed double closed loop system is developed.
基于观测出的状态信息，构成了转差频率控制的转矩速度双闭环新型变频调速系统。
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。
Frequency characteristics calculation of the digital closed loop FOG was conducted based on error analysis between the transfer function and the model.
分析传递函数与FOG模型的误差，得出数字闭环FOG频率特性的计算方法。
This paper introduces the 16-bit MC9S12H256 MCU and describes the design of closed loop asynchronous motor frequency converter control system using it in details.
文章介绍了目前国内应用较少的16位单片机MC9S12H256，并详细阐述了使用该型号单片机实现闭环变频调速系统的设计方案。
Finally, EI input shaper is designed for the closed loop system whose frequency and damp has uncertain characteristic to reduce the vibration.
最后针对该系统由于非线性环节的引入导致的闭环频率和阻尼不确定的特点，设计了鲁棒ei输入成型器来抑制挠性结构的振动。
On the pulse frequency encoding of the antennas, the thesis provided the feedback units using multi closed loop delay circuit.
在光学天线频率编码分析中，本文提出了利用多光纤环级联代替单光纤环作反馈单元实现频率编码的思想。
Then, by virtue of frequency domain multiplier method, we prove that the closed loop system with both a locally distributed feedback con.
进而利用频域分片乘子方法，在所论梁系统同时具有分布反馈控制和边界反馈控制的条件下，证明其相应的闭环系统能量指数稳定。
Each module is controlled by voltage-current two closed-loops. The common voltage loop controls system output voltage & frequency, and generates a common reference current signal.
每台航空静止变流器模块均为电压、电流双环控制，通过公用电压调节器稳定并联系统的输出电压及频率，同时产生统一的模块电流给定信号。
The chip of TL494 functions very strong, and its operation frequency is high. The double closed loop control of output voltage and current is realized by integrating some simple hardware circuit.
TL 494芯片功能强，工作频率高，通过外扩简单的硬件电路即可实现输出电压电流的双闭环控制。
In this paper, a mathematical model of static frequency converter starting with current and frequency closed-loop control for pumped storage units is established.
本文建立了抽水蓄能机组静止变频器在电流、频率闭环控制下的数学模型。
The system stability is determined by analyzing the amplitude-frequency characteristics of closed-loop transfer function.
通过分析闭环传递函数的幅频特性，对系统的稳定性进行了判定。
The system stability is determined by analyzing the amplitude-frequency characteristics of closed-loop transfer function.
通过分析闭环传递函数的幅频特性，对系统的稳定性进行了判定。
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