| 基于虚拟仪器的传声器指向性测量系统 |
| |
| 引用本文： | 刘顺娟,徐斌. 基于虚拟仪器的传声器指向性测量系统[J]. 电声技术, 2009, 33(3): 19-21 |
| |
| 作者姓名： | 刘顺娟 徐斌 |
| |
| 作者单位： | AAC声学科技股份有限公司南京电声技术研发中心,江苏南京,210009;AAC声学科技股份有限公司南京电声技术研发中心,江苏南京,210009 |
| |
| 摘 要： | 提出了一种基于虚拟仪器的传声器指向性测量系统。系统由NI数据采集卡及LabVIEW图形化编程语言编写的软件程序组成。由步进电机带动传声器转动。能绘制出待测传声器的指向性极坐标图，同时显示测得的数据。与传统的测量系统相比，该系统降低了成本，节省了操作空间，同时具有操作简单、指向性图案及测量数据同步实时显示特性。
|
| 关 键 词： | 虚拟仪器 传声器 指向性 测量 极坐标图 |
Design of Microphone Directivity Measurement System Based on Virtual Instrument |
| |
| LIU Shun-juan,XU Bin. Design of Microphone Directivity Measurement System Based on Virtual Instrument[J]. Audio Engineering, 2009, 33(3): 19-21 |
| |
| Authors: | LIU Shun-juan XU Bin |
| |
| Affiliation: | AAC Acoustic R&D Center;Nanjing 210009;China |
| |
| Abstract: | A microphone directivity measurement system is presented. The system consists of an NI DAQ card and a software programmed by graphical programming language LabVIEW. The mechanical system is driven by a step motor. The software can draw a directivity chart of the microphone under test, and display the result on the user interface at the same time. Compared with traditional measurement system, the system is a low-cost and space -saving device, and the simple operation and synchronized real -time display of di... |
| |
| Keywords: | virtual instrument microphone directivity measurement polar plot |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
