Sound Intensity spectrum Analyzer for Determination of Sound Power 用于测量声功率的声强频谱分析仪
Secondly, experiments were made to analyze the effect of the wheel damper, we used the system composed of a self-made pendulum, three acceleration sensors, a four-channel charge amplifier, a sound level meter, a signal collection analyzer and the DASP software. 其次,对车轮阻尼器的降噪效果进行实验分析。实验采用激振单摆、加速度传感器、电荷放大器、声级计、智能信号采集处理分析仪以及DASP软件组成的测试系统。
According to the sound analysis, an assumption of a virtual sound intensity analyzer is put forward and its control panel is also given; 以噪声分析的虚拟化为例,重点提出了一种虚拟式声强分析仪的设想,并给出了设计面板;
Virtual Sound Intensity Analyzer 虚拟式声强分析仪
Experiment by using laser scanning vibrometer and sound spectrograph carry analyzer, have observed the sub-harmonic phenomena, and verify the theoretic analysis. 采用激光测振仪及声谱分析仪,实验测得了扬声器的分谐波失真信号,验证了理论分析结果。