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没有死区的绝对距离计,基于自由运行的双秒激光器

Senmiao Han¹, Linghui Yang¹, Youjian Song²

¹State Key Laboratory Precision Measurement Technology and Instruments, School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China.

The Review of scientific instruments

|April 17, 2024

概括

这项研究引入了一种高度集成的绝对距离计,使用自由运行的双秒激光器和非线性异步光学采样. 它克服了死区问题,用于工程应用中的精确,连续的测量.

科学领域:

* 光学工程是指光学工程.
* 计量学和测量科学计量学和测量科学
* * 激光技术激光技术

背景情况:

* 五秒激光绝对距离测量提供高精度,但面临系统复杂性,死区和集成问题等挑战.
*以前的双秒激光测距系统在实际工程应用中的可扩展性和连续测量能力上是有限的.

研究的目的:

* 设计和开发一个高度集成的绝对距离计,利用自由运行的双双秒激光器.
* 克服以前系统的局限性,特别是解决死区问题,并加强实际应用的整合.

主要方法:

*采用自由运行的双秒激光器与非线性异步光学采样方法相结合.
* 集成了极化复杂化技术,以消除光路检测中的死区.
* 使用现场可编程门阵列 (FPGA) 进行数字控制和信号处理.

主要成果:

*成功设计了一种高度集成的绝对距离计.
* 该系统有效地解决了与单一光路检测固有的死区问题.
* 在相当大的范围内实现了快速,连续和准确的绝对距离测量,没有死亡区域.

结论:

* 开发的绝对距离测量仪在以前的五秒激光测距系统上提供了显著的进步.
*高集成度和无死区测量能力为更广泛的工业和工程应用铺平了道路.
* 这项技术有望增强仪器仪表和实践实施秒激光计量技术.

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