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南京大学声学研究所最近研制成功一种新型的岩土声波仪.来自同济大学、工程兵工程学院、河海大学等单位的专家参加了四月初在南京举行的省级技术鉴定会,鉴定委员会认为:该仪器主要性能指标达到了国内先进水平,就发射功率和探测距离而言,达到国外产品的先进水平. 该仪器主要用于岩体、土体、混凝土工程中的现场声波无损检测.由于采用调制脉冲作为发射声源,提高了电声有效转换效率、增加了声功率输出,使检测声波在岩土体中的穿透距离和探测范围大为提高.该仪
Nanjing University Institute of Acoustics recently developed a new type of rock soil acoustic wave instrument from Tongji University, Engineering Corps, Hohai University and other units of experts participated in the early April held in Nanjing provincial technical appraisal committee, accreditation committee that: The main performance indicators of the instrument has reached the advanced domestic level, reaching the advanced level of foreign products in terms of transmitting power and detecting distance.The instrument is mainly used for on-site acoustic non-destructive testing in rock mass, soil and concrete engineering, The pulse as the transmitting sound source improves the effective conversion efficiency of the electroacoustic and increases the output of the acoustic power so that the penetration distance and the detection range of the detection sound wave in the rock mass are greatly improved.