Finally, Based the analysis of theory modal, a modal testing program has been designed according to the existing test equipments, which prepares for the next testing of the vibration and noise.
在理论模态分析的基础上，根据现有的试验设备设计了合理的试验方案，为下步的振动与噪声的试验做了必要的理论准备。
The paper is concerned with the improvement of old portable data acquisition instrument, which contains the program migration, the design of USB transmission and noise analysis modules.
本论文主要是对原先的便携式数据采集仪进行改进，先进行程序移植，然后完成了USB通讯和噪声分析这两个模块的设计。
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