This paper introduced the work principle for testing wood elastic modulus with Fast Fourier Transform (FFT) and the structures of the machine and test technical process, this machine can test fast and accurate.

• 摘要介绍了快速傅立叶变换(FFT)技术敲击板材检测弹性模量数控检测设备的工作原理及组成，并在此基础上描述了检测板材的工艺过程，说明该检测设备具有准确快速等特点。