【摘要】 本文提出用时间平均云纹信息倍增技术研究面内振动的振型,它可用商品化的低密度的云纹栅获得高灵敏的测量结果,其倍增率为2n,且灵敏度可调。更多还原

【Abstract】 A time-avarage moire information multiplication method is proposed for studing and measuring in-plane vibrational modes. By employing this technique we can obtain measuring results of higher sensitivities with gratings of lower frequencies and commodity, Its multiplication factor is 4n and the sensitivity is adjustable.更多还原