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- Analysis and verification of synchronic sampling error on harmonic detecting of power frequency signal 工频信号谐波检测中同步采样误差的理论分析与验证
- Power Frequency Signal Two-way Modulation and Demodulation Based on Distribution Network 基于配电网的工频信号双向调制和解调
- power frequency signals 工频信号
- Impact in power frequency variation. 频率变化之影响。
- power frequency signal 工频信号
- Can be output voltage, current, millivolt, frequency signal output of 24V DC power distribution circuit to provide power for the transmitter. 可输出电压、电流、毫伏、频率等信号24V DC配电输出为变送器提供回路电源。
- Can control audio frequency signals remotely，the volume can be modulated. 可对各路音频信号进行远程操控，音量可调；
- The algorithm can accurately track the power frequency and decompose the current signals orthogonally into resistive and capacitive components, without recurring to synchronous sampling. 该算法无需同步采样，可以跟踪电网频率并实现电阻性电流和电容性电流的分解。
- Because BPL uses the radio frequency signals sent over medium- and low-voltage AC power lines to connect customers to the Internet, it can cause interference with HAM radios and emergency radios. 由于电力线宽带是通过中低电压的交流电线路来进行无线电频率信号的传输，因此，它会对业余无线电及其紧急无线电发射造成干扰。
- High-speed in-amps may be used in many video and cable RF systems to amplify or process high frequency signals. 高速仪表放大器可以用于许多视频和闭路射频系统的放大或者处理高频信号。
- The disconnector shall operator at the power frequency short circuit while MOA's failure under the abnormal conditions. 避雷器带脱离的目的是当避雷器在异常情况下发生故障损坏时，工频短路电流使脱离器工作，脱离器接地端自动脱开，使故障的避雷器与系统脱离，并表明故障避雷器更换。
- 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。
- A review on the study on power frequency electromagnetic field hazards to organisms. 工频电磁场生理危害的研究进展。
- 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”。
- The New Techniques Development of High Voltage High Power Frequency Converter of ABB Co. ABB高压大功率变频器的最新技术发展
- 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。
- When the frequency changer has malfunction, power frequency is adopted, and the motor speed is nonadjustable. 万一变频器出现故障时，可工频驱动，转速不可调。
- It is pointed out that the power frequency electromagnetic field is inductive field,but not radiation field. 对输变电工程工频电磁场、无线电干扰进行了理论分析,指出输变电工程工频电磁场是感应场,而非辐射场。
- 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。
