【摘要】 论述了声波检测原理，总结了我国３０年开发的各种检测方法，从中阐述发射器与接收换能器的重要作用及今后有待改进的问题。列举了地质灾害防治中应用实例。更多还原

【Abstract】 This paper discusses the principle of acoustical detection and development of multifarious detection method in the past thirty years The important function of trasmitter and receiver in acoustical detection technique is deseribed The futher development of receiver characteristic are presented,for example,the application of geological hazard control更多还原