noise meter

Finally, the internal and external noise measuring instrument trend of development is discussed.

噪声测量仪已由一般的声级计发展到噪声实时分析仪。

Experimental Study on Noise Sources Identification of Vehicle Based on Sound Intensity Method

基于声强法的整车表面噪声源识别试验研究

noise produced by the friction of the stylus of a record player moving over the rotating record.

电唱机唱针与旋转的唱片表面摩擦发生的噪声。

Suppression of the noise of surface wave plasma antennas by a new radio frequency source

抑制表面波等离子体天线噪声的激励源研究

Application Study of Response Surface Method in Structure-Born Noise Optimization

响应表面法在结构噪声优化中的应用研究

Study of the Noise Characterization Model of BJTs Radiation Based on Damage of the Interface Material

基于界面材料损伤的晶体管辐射噪声表征模型

Surface radiating noise testing and research of engine using biodiesel

柴油机燃用生物柴油表面辐射噪声测试与研究

Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using an enveloping measurement surface over a reflecting plane

GB/T3768-1996声学声压法测定噪声源声功率级反射面上方采用包络测量表面的简易法

RESEARCH ON Sound Insulation Theory and Experiment Based on Surface Radiation Noise of I.C.Engine;

内燃机表面辐射噪声屏蔽技术的理论与试验研究

The Aerodynamic Noise Reduction by Using Porous Materials and Application to a Pantograph

构件表面粘贴多孔材料降低空气动力噪声及其在受电弓上的应用

Data process of spectroscopic surface plasmon resonance analyzer based on noise analysis

基于噪声分析的波长表面等离子体共振分析仪的数据处理

Study on the Tire/Road Noise Characterizes of PCC Pavement

水泥混凝土路面轮胎/路面噪声与交通噪声评价方法研究

Emitting noise when something bad happens is called negative audible feedback.

有问题时发出噪声称为“负面听觉反馈”。

Research on Influence of Pavement Roughness on Noise of Car

路面平整度对小汽车噪声的影响研究

Research on Material Performance of Low Noise Road Surface in Cold Area;

基于寒区低噪声路面材料性能的研究

The Influence of Land Covering on the Traffic Noise Attenuation;

地面覆盖物对交通噪声衰减量的研究

Research on Noise Prediction of Submerged Jets and Turbulent Boundary Layer

水下湍射流及壁面湍流噪声预报方法

Rayleigh Wave Tomography in North-China from Ambient Seismic Noise

华北地区瑞利面波噪声层析成像研究

Calculation of Noise Temperature Due to Reflector Antenna Ohmic Loss

反射面天线欧姆损耗噪声温度的计算