摘要
本文简要叙述岩石超声谱测试技术，及应用该技术研究岩石特性的初步成果。本技术为：（１）采用窄脉冲发射、宽带接收声谱测试及微机分析系统。（２）测试时考虑岩石试件中声波特性及试件尺寸效应，（３）将声信号离散量化进行数据处理。（４）用数字门技术取反映岩石特性的有效波进行傅里叶变换获取岩石频谱。
This papaer describes rock ultrasonic spectrum measurement technology. That is to adopt narrowpuise emissiom,broadband receivation and microcomputer analysis system;to take sound wave propagation characteristics and size effects into accownt of the samples during experiment;to discretize andquantize sound signs for data precessing;to take effective waves of rock characteristics by digital technology for fourier transform to obtain rock frequency spectrum,and to employ ultrasonic spectrum technologyfor research into rock properties-characterestics values of rock can reflect rock structure,mineral content,cementing and weathering extent etc and are relative to rock mechanics parameters,while spectrum shapecan reflect integral extent of rock.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
1994年第1期59-68,共10页
Chinese Journal of Rock Mechanics and Engineering
关键词
岩石
声波
频谱分析
主频
频谱
rocks,acoustic wave,spectral analysis,basic frequency,frequency spectrum.
