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- Wind turbine generator systems -- Part 11: Acoustic noise measurement techniques 风力涡轮发电机系统。第11部分:噪声测量技术
- acoustic noise measurement 噪声测量
- Some common measures to reduce mechanical acoustic noise are summarized. 并对一些常用的降低电机机械噪声的措施和方法进行了综述。
- The wide application of switched reluctance motor(SRM) is limited by their higher vibration and acoustic noise. 针对开关磁阻电动机运行的振动和噪声问题,基于频域分析方法,研究了电压PWM运行方式下,采用两步换相法降低开关磁阻电动机振动和噪声的机理。
- Considerable vibration and acoustic noise limit the application of Switched Reluctance Motors (SRMs). 大的振动和噪声阻碍了开关磁阻电机的推广应用。
- Part II of this Lab examines a technique for minimizing the effects of scanner acoustic noise on auditory activation. 本实验的第二部份，要探讨减低造影仪噪音的技术对听觉活化的影响，这个技术称为集中扫瞄法。
- The Nautilus meets withstands shock, vibration, salt, fog, drip, fungus, acoustic noise, and EMI. 鹦鹉螺还能抵抗撞击、振动、防盐防雾、防渗水并能经受噪声和电磁干扰的影响。
- Excellent acoustic noise reduction features, users create a work of quiet living environment. 卓越的隔声降噪功能，为使用者创造宁静的工作生活环境。
- The modified readout noise measurement is based on the standard deviation of a selected square in the overscan image. 在此基础上,提出了改进的噪声和CTE的测试和归算方法。也就是,读出噪声的测量以过扫描区的方差为基础来进行。
- Using the acoustic noise signal generated by driving motor vehicles to vehicle classification is a new and promising method. 利用车辆行驶过程中所产生的声频噪声信号进行车型分类是一种新方法，有较大应用前景。
- The ambient noise measurement for substations in the city plays an important role in controlling and preventing ambient noise pollution. 城市中变电站环境噪声测量对控制和防治环境噪声污染起着重要作用。
- This paper also investigated the influence of the zero vector and PWM switching frequency on the acoustic noise radiated by induction machine. 选择适当的PWM开关频率能有效地降低电机的噪声·
- Cogging torque is one of the most important parameters of PM motors,which causes torque ripple,vibration and acoustic noise. 齿槽转矩是永磁电机最重要的参数之一,它的存在会造成电机的转矩波动、振动和噪声。
- Cogging torque is one of the most important parameters of PM motors, which causes torque ripple, vibration and acoustic noise. 摘要齿槽转矩是永磁电机最重要的参数之一，它的存在会造成电机的转矩波动、振动和噪声。
- A 8mm waveband FM and AM noise measuring equipment is introduced in this paper. 介绍了8mm 调频调幅噪声测试设备的原理和设计;给出了完整的测试数据和误差分析.
- As the radial vibration of stator is the origin of the acoustic noise of SRMs, model analysis of stator vibration is the effective way to the research for low acoustic noise. 由于定子的径向振动是开关磁阻电机噪声的主要根源,因此定子振动系统的模态分析是降噪研究的有效手段。
- Noise measurement of electromotor by precise acoustic tester 用精密声级计测量电机噪声
- Secondly, research development of noise control is analyzed and theory research of noise radiation, noise measurement and noise resource diagnosis, CAE, research of numerical value and visual analysis, noise active control are described in this paper. 接着，分析噪声控制工程的研究进展，提出噪声辐射理论研究，噪声测试与声源诊断，CAE、数值化与可视化研究，噪声的主动控制技术。
- The correspondence of the two different kinds of multi-point noise measurement methods with the airworthiness regulation FAR36 part which is admitted internationally is analysed and studied here. 对噪声测量系统 中的关键问题-噪声前置放大电路，文中给出了具体的电路，已通过 计量检测和实际考核，并提出了改进的优化电路。
- The acoustic noise generated by the rotate point source, UH-1H rotor in hover and AH-l/OLS in forward flight were calculated, and the computed results from several methods were compared with each other and with the experimental data. 采用旋转点源、UH-1H悬停旋翼、AH-1/OLS前飞旋翼作为算例，对所采用的各种噪声预测方法进行了比较。
