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- The Source of Response Spectrum Peak and Drawback of Acoustic Noise Test Spectrum 响应谱峰值来历与噪声试验谱的缺陷
- acoustic noise test 听觉噪音试验
- 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 application is required to be supported by an engine noise test report and an engine emission test report issued by an approved laboratory. 车主必须取得由认可实验室发出的引擎噪音测试报告及引擎排放测试报告,以支持其申请。
- Based on noise test results of a four-cylinder gasoline engine, this paper establishes the simulation model by using simulation software GT-POWER. 本文针对某四缸汽油发动机噪声测试结果，运用数值仿真软件GT-POWER进行建模仿真计算。
- 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。
- 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·
- In this article the bearing ability test of hard gear face point-line meshing gear transmission and the trial of noise test are introduced. 本文介绍了硬齿面点线啮合齿轮传动的承载能力试验和噪声测定试验的情况。
- 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。
- In the noise test of model propellers, singing is a major disturb which influences noise test and data analysis, and must be eliminated. 摘要模型螺旋桨噪声试验中，唱音是影响噪声测试与数据分析的主要干扰，必须予以消除。
- 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。
- 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。
- Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-13: particular requirements for range hoods. 家用和类似用途电器。测定空中传播噪声的试验规程。
- Household and similar electrical appliances - Test code for the determination of aibone acoustical noise - Part 2-8 : particular requirements for electric shavers. 家用及类似用途电器.;测量空气噪声的试验规范
- Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-13 : particular requirements for range hoods. 家用和类似用途电器.;测定空中传播噪声的试验规程
