Study on the Characteristics of Acoustic Emission Signals Transmitted through Waveguide Rod in a Simulation of Deep Well Water
在模拟深井水中经波导杆传播的声发射信号特征研究

风 王
2013 Advances in Geosciences  
The waveform and spectroscopy characteristics of acoustic emission signals generated by the broken lead tests through the cylindrical rod shape of waveguide in a simulation of deep well water have been studied in this article. The attenuation regulations of the acoustic emission signals in the water-acoustic coupling system have also been discussed. The results show that the maximum amplitude, duration time, ringing count and energy of the acoustic emission signals through the cylindrical rod
more » ... e cylindrical rod waveguide in the simulation of deep well water were lower than that of the acoustic emission signals only through the waveguide rod. The former signals show an obvious frequency dispersion phenomenon and its frequency band energy is mainly in the fourth and fifth bands.
doi:10.12677/ag.2013.32011 fatcat:y63awc3vazc73mww6vtl5x35ce