Acquisition of a Scanning Laser Vibrometer

购买扫描激光测振仪

• 批准号: 9871288
• 负责人: P. Frank Pai
• 金额: $ 15.5万
• 依托单位: University of Missouri-Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-15 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9871288&HistoricalAwards=false
• 关键词: Acquisition; Scanning; Laser; Vibrometer

9871288PaiThe overall objective of the award is to purchase a Polytec PSV-200 Scanning Laser Vibrometer (SLV) and to 1) integrate it into existing research setups of the investigators, 2) strengthen new collaborative research between the PIs, and with other researchers, 3) integrate it into selected undergraduate and graduate courses in the Department of Mechanical and Aerospace Engineering at the University, and 4) make the equipment available to other researchers at the University. An SLV measures velocities of a vibrating surface by measuring the change in frequency of a laser beam reflected from the moving surface. Physically different from the electro-mechanical principles of accelerometers, the SLV offers non-contact measurements, a finer velocity resolution, a wider operating dynamic range, and higher linearity in a fully automated scanning package with ultra-high optical sensitivity.

9871288Pai 该奖项的总体目标是购买 Polytec PSV-200 扫描激光振动计 (SLV) 并 1) 将其集成到研究人员现有的研究装置中，2) 加强 PI 之间以及与其他研究人员之间的新合作研究，3 ) 将其整合到大学机械与航空航天工程系选定的本科生和研究生课程中，以及 4) 向大学的其他研究人员提供该设备。 SLV 通过测量从移动表面反射的激光束频率的变化来测量振动表面的速度。 与加速度计的机电原理在物理上不同，SLV 在具有超高光学灵敏度的全自动扫描套件中提供非接触式测量、更精细的速度分辨率、更宽的操作动态范围和更高的线性度。