Ueda M, Miida S, Sato T
Appl Opt. 1976 Nov 1;15(11):2690-4. doi: 10.1364/AO.15.002690.
The theoretical and experimental analysis of SNR in frequency-translated holography that is applied to the detection of small vibration amplitude is presented in this paper. The feature of the experiments lies on the usage of acoustic surface waves as the vibrating test object, since the acoustic surface waves give the reliable vibration amplitude and the easiness of the measurement of SNR. Furthermore the detectable smallest amplitude is estimated as 2.7 x 10(-4) lambda, which is several tenths smaller than the previously presented estimations, and the dependences of the detectable smallest vibration amplitude on the experimental arrangements are also made clear.
本文介绍了用于小振动幅度检测的频率平移全息术中信噪比的理论和实验分析。实验的特点在于使用声表面波作为振动测试对象，因为声表面波能提供可靠的振动幅度且易于测量信噪比。此外，可检测到的最小幅度估计为2.7×10^(-4)λ，这比之前提出的估计值小十分之几，并且还明确了可检测到的最小振动幅度对实验装置的依赖性。
