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由中国科学技术大学周康源副教授领导的课题组等设计研制的TS-1型体内声衰减测试仪于7月10日在合肥市通过设计定型鉴定。 仪器采用该课题组提出的幅度差法体内声衰减测试原理(详见《声学学报》1990年第2期130—136页),能直接与各种B型超声诊断仪配合,借助于由超声仿真模块测得的数据,可消除声束扩展、衍射、仪器增益、TGC补偿等多种因素的影响,从而获得人体组织中有关区域的平均声衰减斜率。经使用中国科学院声学所研制的标准组织定征模块(tissue characteriz-ation phantom)测试,当所取区域面积不小于2.5
By the Chinese University of Science and Technology Zhou Kangyuan associate professor task group designed and developed TS-1-type body sound attenuation tester on July 10 in Hefei through the design stereotypes. Instrument using the group proposed by the amplitude difference method of sound attenuation test theory (see “Acoustics,” No. 2, 1990, pp. 130-136), can be directly with a variety of B-type ultrasound diagnostic apparatus, by means of ultrasound simulation The data measured by the module can eliminate the influence of many factors such as beam expansion, diffraction, instrument gain, TGC compensation, etc. to obtain the average sound attenuation slope of the relevant region in the human tissue. After using the tissue characteriz-ation phantom test developed by the Institute of Acoustics of the Chinese Academy of Sciences, when the area taken is not less than 2.5