| 基于非机械调制光的激光测振仪校准技术进展 |
| Progress in calibration technology of laser vibrometer based on non‑mechanically modulated light |
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| 中文摘要: |
| 随着激光测振仪使用场景和测量范围的不断扩大，其校准也愈发重要。但依据目前测振仪校准标准，无法实现高频高速环境下的整机校准，因此迫切需求完善此方面的校准方法。近几年，研究人员将非机械调制光用于测振仪校准测试中，构建了理论模型并取得了校准试验数据。本文对这些理论模型和试验数据进行了分析，根据光调制产生位置和核心调制器件的不同对相关方法进行了分类，同时对其工作原理、系统结构组成和主要参数等进行介绍，再对比分析不同方法的校准功能与适用范围，最后展望了相关方法的发展潜力和研究方向，为测振仪校准技术进一步研究提供了借鉴。 |
| 英文摘要: |
| With the continuous expansion of application scenarios and measuring range of laser vibrometer, its calibration becomes more and more important. However, according to the current calibration standard of vibrometer, the whole machine calibration under high frequency and high speed environment cannot be realized, so it is urgent to improve the calibration method in this respect. In recent years, researchers have used non-mechanically modulated light in the calibration and testing of vibrometers, built theoretical models and obtained calibration test data. This paper analyzes these theoretical models and experimental data, classifies relevant methods according to different optical modulation generation positions and core modulation devices, and introduces their working principles, system structure and main parameters. It then compares and analyzes the calibration functions and application scope of different methods, and finally looks forward to the development potential and research direction of relevant methods. It provides a reference for further research on the calibration technology of vibrometer. |
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| 中文关键词: 激光测振 校准 声光调制 电光调制 调制光 |
| 英文关键词:laser vibrometer calibration acousto-optic modulation electro optic modulation modulated light |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2022.06.03 |
| 引用本文：王听言, 张大治, 梁志国.基于非机械调制光的激光测振仪校准技术进展[J].计测技术,2022,(6):. |
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