现代应用物理2026，Vol.17Issue(4)：100-108,9.DOI:10.12061/j.issn.2095-6223.202511004
基于非等臂直角杠杆的水平光压测量方法
Horizontal Optical Pressure Measurement Based on an Unequal-Arm Right-Angle Lever
摘要
Abstract
Owing to the reciprocity between laser power and radiation pressure,optical pressure-based power measurement technology has become a research hotspot in high-power laser measurement due to its high upper limit,good linearity,and online measurement capability.This paper presents a horizontal optical pressure measurement method based on an unequal-arm right-angle lever.The method converts horizontal radiation pressure signals into vertical force signals,enabling direct measurement and amplification of horizontal optical pressure.By physically isolating the optical pressure sensing area from the force signal measurement area,thermal interference from high-power lasers is effectively suppressed.Multiple sets of equivalent mass values of optical pressure are measured at output power levels ranging from 1 kW to 3 kW.The equivalent mass generated by a 1 kW laser is 1.92 mg,with an amplification factor of approximately 3.1.Furthermore,the equivalent mass values at different power levels exhibited a strong linear relationship,with a goodness of fit R2=0.999 96.Finally,temperature rises in the optical pressure sensing area and the force signal measurement area are compared experimentally,demonstrating that the proposed structure effectively isolates thermal effects caused by the laser.The horizontal optical pressure measurement method based on the right-angle lever structure proposed in this paper enables direct measurement of horizontal optical pressure signals.It features a simple structure and excellent linearity,providing a new approach for online real-time power measurement of high-power lasers.关键词
光压测量/非等臂直角杠杆/高能激光/水平光压/杠杆放大/热效应抑制Key words
optical pressure measurement/unequal-arm right-angle lever/high-power laser/horizontal optical pressure/lever amplification/thermal effect suppression分类
数理科学引用本文复制引用
卓心男,蒋小为,张一凡,李航,栾昆鹏,王大辉,周忠岳,杨鹏翎..基于非等臂直角杠杆的水平光压测量方法[J].现代应用物理,2026,17(4):100-108,9.基金项目
基础加强计划资助项目(2024-JCJQ-XX-016) （2024-JCJQ-XX-016）
