摘要
利用 PC机和 B& K2 2 30声级计内部相关电路组成新测量系统 ,通过声级计对系列稳定纯音的测量实现对该新系统的标定 .在此基础上 ,应用信号数字处理技术进行编程 ,使系统具有音频信号频谱分析、图形显示和打印等功能 .结果表明 ,在测量精度不变的前提下 。
Combined with some internal circuit of B&K 2230 sound level meter, a new sound measuring system was presented with PC sound blaster. After calibrating the new system through the measurements of pure tones with the sound level meter and programming based on signal digital processing method, the new system had many additional features, such as frequency analysis, figure display and print, etc. Compared with the original sound level meter, the new measuring system has the same accuracy and was much convenient in signal measuring and data processing.
出处
《福建农业大学学报》
CSCD
北大核心
2001年第3期416-419,共4页
Journal of Fujian Agricultural University
基金
福建省教育厅 (JA0 0 173)
福建农林大学甲种基金资助项目
