@inproceedings{6a01c635fe5a4e2e8b202c4c200d1f6c,
title = "An enhanced homodyne laser vibrometer based on an auto-gain module",
abstract = "This study presents an enhanced homodyne laser vibrometer with adaptability to reflectivity. The reflectivity could be quite different when measuring different target, which caused the variation of the intensity of the interference signals. In order to enhance the measurement range for the reflectivity of the target, an auto-gain module, which could enlarge the interference signals to an optimal range of the analog-to-digital converter, is implemented in the signal-processing card. The intensity of the interference signals could be calculated in the auto-gain module, and then amplified according to a predetermined rule by using programmable gain amplifiers. The experimental results indicated that the laser vibrometer proposed is capable of measuring vibration with surface reflectivity down to 0.08\%.",
keywords = "adaptability to reflectivity, homodyne laser vibrometer, vibration measurement",
author = "Ke Wang and Haijin Fu and Di Chang and Pengcheng Hu and Hongxing Yang and Ruitao Yang and Jiubin Tan",
note = "Publisher Copyright: {\textcopyright} 2019 SPIE.; 10th International Symposium on Precision Engineering Measurements and Instrumentation, ISPEMI 2018 ; Conference date: 08-08-2018 Through 10-08-2018",
year = "2019",
doi = "10.1117/12.2512441",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Jie Lin and Jiubin Tan",
booktitle = "Tenth International Symposium on Precision Engineering Measurements and Instrumentation",
address = "美国",
}