Design of a laser pulse eztractor based on an electromagnetic lock
Using an electromagnetic lock as the key control unit,the laser pulse extractor has been designed. It can extract any single pulse in the multi-pulse sequence within the range of 1-25Hz frequency,which provides study methods for the multi-pulse impulse and energy test. The characteristics of the residual magnetism for the electromagnetic lock are analyzed. Then a laser pulse shutter has been designed with the laser spot diameter less than 100mm,the total mass of moving parts lower than 0.7kg,and the elastic coefficient of the extension spring higher than 1.5N/mm. Furthermore a time sequence controller with the function of multi-pulse counting and time sequence control for extracting specious pulse are designed. The result shows that: from the trigger signal to the end of shutting laser pulse,the time delay of the laser pulse shutter is about 26ms,less than the design requirement of 40ms. In the 1st-25th multi-pulse sequences of 25Hz frequency,the time sequence controller is set at No. 13. The two laser pulse shutters work normally,blocking the 1st 12th and 14th-25th pulses,and the 13th pulse is extracted.
electromagnetic lock residual magnetism laser pulse shutter time sequence controller pulse eztraction
Ming Wen Jifei Ye Yanji Hong
Zhuangbei Institute of Technology,Post Box 3380-86,Huairou Dis.Beijing,101416,China
国际会议
2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)
北京
英文
1664-1667
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）