宇航计测技术
宇航計測技術
우항계측기술
JOURNAL OF ASTRONAUTIC METROLOGY AND MEASUREMENT
2015年
2期
43-48
,共6页
温聚英%张大治%程琳%施卫科
溫聚英%張大治%程琳%施衛科
온취영%장대치%정림%시위과
脉冲%瞬态响应%测量%振动
脈遲%瞬態響應%測量%振動
맥충%순태향응%측량%진동
Pulse%Transient response%Measurement%Vibration
散斑测量技术在瞬态振动过程测量中具有不可或缺的重要地位。提出双脉冲瞬态散斑全场测量技术,解决了双脉冲激光器与双曝光相机的时序同步的关键技术,设计了基于双脉冲激光器的瞬态散斑光路系统,搭建了双脉冲瞬态散斑全场测量系统,从而实现了(2~800)μs 时间间隔内连续可调的瞬时振动形貌的测量。
散斑測量技術在瞬態振動過程測量中具有不可或缺的重要地位。提齣雙脈遲瞬態散斑全場測量技術,解決瞭雙脈遲激光器與雙曝光相機的時序同步的關鍵技術,設計瞭基于雙脈遲激光器的瞬態散斑光路繫統,搭建瞭雙脈遲瞬態散斑全場測量繫統,從而實現瞭(2~800)μs 時間間隔內連續可調的瞬時振動形貌的測量。
산반측량기술재순태진동과정측량중구유불가혹결적중요지위。제출쌍맥충순태산반전장측량기술,해결료쌍맥충격광기여쌍폭광상궤적시서동보적관건기술,설계료기우쌍맥충격광기적순태산반광로계통,탑건료쌍맥충순태산반전장측량계통,종이실현료(2~800)μs 시간간격내련속가조적순시진동형모적측량。
Aiming at the impact of digital speckle pattern interferometry on the transient vibration measurements, the technology on double digital speckle pattern interferometry was conducted. Uniform distribution of laser beam energy by space filter is achieved, and double-pulse laser and high-speed cam-era work synchronously by controlling time accurately. The transient speckle interference pattern is ac-quired with the proposed method. The research seeks to investigate and provides transient vibration meas-urements with double-pulse interval from 2μs to 800μs.