%0 Journal Article
%T An ultrasonic measurement model to predict the response from flat bottom hole for dual crystal contact probe<br>基于平底孔反射体的双晶直探头测量模型
%A Zhao Xin-Yu
%A Gang Tie
%A Zhang Bi-Xing
%A <br>赵新玉
%A 刚铁
%A 张碧星
%J 物理学报
%D 2008
%I 
%X Dual crystal contact probes play an important role in many practical ultrasonic inspections, so it is essential to develop an ultrasonic measurement model in order to get a thorough understanding of the characteristics of this kind of transducers. By combining the multi-Gaussian beam model and the Kirchhoff approximation scattering model, a complete ultrasonic measurement model is provided to predict testing signals of a flat bottom hole for a dual crystal focused direct contact probe. By comparing with experimental results, the accuracy of predicted signals using this model has been verified.
%K ultrasonic measurement model
%K dual crystal contact probe
%K multi-Gaussian beam model<br>超声测量模型，
%K 双晶直探头，
%K 多高斯声束模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=01A32A7795630013C005D20E51FFB919&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=5D311CA918CA9A03&sid=2107B1FA095A608B&eid=CD478B5B8462AB93&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=15