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- The match strobe gate is presented to improve the measurement precision of low frequency signal. 文中提出使用匹配选通门提高低频信号频率测量精度。
- Secondly,based on the mathematical model of high frequency injection for salient pole PMSM, A high frequency signal injection method is used to estimate the rotor position of PMSM. 其次,在分析凸极永磁同步电动机数学模型的基础上,阐述了采用高频电压信号注入法进行转子磁极位置估计的原理。
- A hybrid rotor position self-sensing approach was investigated in this paper by combining the high frequency signal injection method and model reference adaptive system(MRAS) method. 基于对高频信号注入法和模型参考自适应法转子位置自检测原理和特性的讨论,提出了一种包含零速在内的全速度范围内均能实现转子位置/速度准确检测和控制的复合方法。
- Maritime and aviation navigation systems use low frequency signals to locate vessels or aircraft. 航海和航空界的导航系统使用低频率讯号来测量船只或飞机的位置。
- Note: Fast gating of sustained low frequency signals can result in “chattering. 注意:对相同的低频信号,设置噪声门过快会导致“喘息声”。
- Highly accurate detection of feeble and low frequency signals become realizable with the PWM sensing technique. 采用PWM检测技术,使微弱、低频信号的高精度检测成为现实。
- Dynamic characteristics of the portal frame are also identified from the WPT of low frequency signals. 低频的部分则可以进行门形构架的系统识别。
- Ultra low frequency signal generator 超低频信号发生器
- Test methods for low frequency signal generators 低频信号发生器测试方法
- Results showed that the spectra in frequency domain could be divided into two parts: high frequency and low frequency signals. 结果表明,测量光谱在频域中的信号可被分为两部分:即低频信号和高频信号。
- Sensorless New DTC System Based on High Frequency Signal Injection 基于高频信号注入的无传感器新型DTC系统
- According to the technology of direct digital synthesis(DDS),a kind of low frequence signal source was introduced based on the Complex Programmed Logical Device(CPLD)and Single Chip Micyoco(SCM). 介绍了一种应用直接数字频率综合器(DDS)技术,基于可编程逻辑器件(CPLD)和单片机设计的低频信号源。
- Design and Realization of Ultra- low Frequency Signal - Generator 超低频信号发生器的设计与实现
- PC-based High Resolution Spectrum Analyzer for Low Frequency Signal 高分辨率PC虚拟低频频谱分析仪的设计
- General specification of low frequency signal generators 低频信号发生器通用技术条件
- additional low frequency signaling 附加低频信号
- In electronics, undesirable low frequency currents interfering with a desired signal, and usually caused by a poorly screened alternating mains supply. 在电子学领域,一种不希望发生的低频电流,它干扰所要求的信号。通常这种现象是由于交流供电线路屏蔽不良引起的。
- One Low Frequency Signal Generator with the Noise Based on DDS AD9832 9832的带噪声低频信号源设计
- Study on graphic display in a measuring system for low frequency signal 低频信号测试系统图形显示的研究
- The application of a single-chip computer to a low frequency signal generator 单片机在低频信号发生器中的应用