Acousto-Optic Measurement Device with High Angular Resolution

• 作者: Gennady Kaloshin Igor Lukin
• 来源期刊: 传感技术(英文)
• 学科: 物理学
• 关键词: Laser BEAM Acousto-Optical DEVICE DIFFRACTION ATMOSPHERIC TURBULENCE
• 年，卷（期）: 2012,（2）
• 页码范围: 55-59
• 页数: 5页
• 分类号: O4

摘要

The paper introduces a new laser interferometry-based method for diagnosis of random media by means of high accuracy angle measurements and describes the results of its development and testing. Theoretical calculations of the dependence of the range of the laser interferometer on laser beam parameters, device geometry, and atmospheric turbulence characteristics are reported. It is demonstrated that at moderate turbulence intensities corresponding to those observed most frequently in turbulent atmosphere at moderate latitudes and with low interference contrast values, the performance range of the laser interferometer-based device exceeds 5 km.