The beginnings of near‐field acoustical holography under Eugen Skudrzyk.
The beginnings of near‐field acoustical holography under Eugen Skudrzyk.
复制标题
DOI：
10.1121/1.403501
复制
发表时间：
1992-04
期刊：
影响因子：
--
通讯作者：
E. Williams
中科院分区：
文献类型：
--
作者：
E. Williams
近场声全息（NAH）起源于宾夕法尼亚州立大学戴维大楼的Eugen Skudrzyk实验室。他启发了第一个近场麦克风阵列的构建，在一个大型正方形阵列中有256个元素，放置在他位于戴维实验室的半消声室中。这个房间已经被几个以前的学生，包括我自己，用来研究板的振动。在另一个房间里，格雷厄姆和沃森，两位前博士。多年前，Eugen Skudrzyk的研究人员已经完成了扫描麦克风的工作，并开发了一种称为声学全息术的技术，使用激光和摄影胶片来重建声场。有了这种新的麦克风阵列，特别是与计算机接口，就有可能对记录的全息数据进行数字处理和重建，从而消除了对激光和照相胶片的需要，并极大地提高了接收数据的质量。在这个演讲中，在宾夕法尼亚州立大学的NAH工作，以及鼓舞人心的罗.
Near‐field acoustical holography (NAH) had its roots in Eugen Skudrzyk’s laboratory in the Davey Building at Penn State. He inspired construction of the first near‐field array of microphones, with 256 elements in a large square array, placed in his semianechoic chamber in the Davey Laboratory. This chamber had been used by several previous students, including myself, to study plate vibration. In another room, Graham and Watson, two former Ph.D.’s of Eugen Skudrzyk, had completed work years before with a scanning microphone and had developed a technique called acoustical holography, using a laser and photographic film to produce reconstructions of the sound field. With this new array of microphones, especially with a computer interface, it was possible to digitally process and reconstruct the recorded hologram data eliminating the need for lasers and photographic film and improving tremendously the quality of received data. In this talk the work in NAH at the Penn State University, and the inspirational ro...