岩石声波测量装置研究

Research on acoustic measuring device of rock

通过研究声波在岩样内传播的波形规律,了解岩样受到外界压力后的结构特性。描述了以研华数据采集卡和SOC单片机为核心构造的岩石声波测量装置的研究。通过改变激励信号的频率、强度和波形,对岩样进行静态和单轴加载实验,确定了声波测量装置的最佳参数。在此基础上设计了一套便携式岩石声波测量装置,硬件系统主要由ARM处理器,LCD图形显示器,超声波单元等组成。软件系统由信号处理模块,显示模块,监控模块等构成。

The rock acoustic nondestructive testing technology is based on the mechanical properties of rocks, through the research on the waveform law of acoustic in the rock samples, which understands the structural characteristics of the rock samples under the external pressure. It describes the research of the rock acoustic measuring device, which is based on data collection cards and SOC microcontroller as the core. Through changing the frequency, intensity and waveform of excitation signal make the experiments on the static and uniaxial loading by the samples of rock that decide the best acoustic measuring device parameters. On this basis, I design a portable rock acoustic measuring device, whose hardware system is composed of the ARM processor, the LCD graphics aisplay, the ultrasonic unit. Software system is made up of the signal processing module, the display module, the control modules, etc.