1) compound source,compound sound source
复声源
3) noise source
声源
1.
This paper is based the full analyse and research of noise source of pneumatic drill.
对气动凿岩机产生的噪声声源进行了全面的分析研究,介绍了各声源的特性及测试方法。
4) Sound source
声源
1.
Comparison of characteristics of popular sound sources for room acoustical measurements;
室内声学测量中常用声源性能的比较
2.
Zero-crossing detector is capable of predicting the shape changes of power spectrum so as to find the newly emerged moving sound sources in ambient noise.
过零检测器可以通过预报功率谱形状的变化来发现环境噪声中新出现的运动声源,研究了过零检测器的检测性能。
3.
Using a speaker drived with the output of a low frequency numerical signal generator as sound source and an electret sensor as detector,traditional instrument for sound velocity measurement is improved.
采用低频数字信号源推动小型扬声器做声源,用静电式驻极体传感器做拾音器,对传统的声速测量装置进行了改进。
5) acoustic source
声源
1.
Characteristics of self-vibration analysis on acoustic source with complicated structure under water;
水下复杂声源结构自振特性分析
2.
The centralized localization scheme of acoustic source in WSN can get high localization accuracy, but it can\'t be used in practice due to the great deal of consumed energy, so a distributed EM localization scheme was proposed.
无线传感器网络中声源的集中式定位方法具有较高的定位精度,但是网络能耗过大,不适合实际应用,因此,提出了一种基于能量的分布式EM定位方法。
6) Sound source noise
声源噪声
补充资料:点声源
点声源
Point source
点声源(point Source) 在空间上仅有明确位置而无范围的声源称为点声源。讨论声辐射时,定义点声源的概念是方便的。假如点声源的声辐射在径向的传播是直线(在球面波中,情况也相同),那么根据能量守恒原理,辐射强度在任何方向的衰减和声源距离的平方成反比。实际上的物理声源并非数学上的点,但若距离极大于声源尺寸时,平方反比律可以是一个很好地近似。参阅“平方反比律”(inverse一square law)条。 〔小赫尔(Me A.Hull,Jr.)撰口
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条