摘要
对发射环境下大口径火炮弹底发射装药挤压应力的准确测量是发射安全性研究的关键。本文设计并实现了某型大口径火炮弹底发射装药挤压应力聚偏二氟乙烯(PVDF)传感器,使用Multisim电路仿真软件对PVDF传感器放大电路进行仿真研究,并利用动态挤压试验装置进行了该新型弹底传感器标定试验,试验获得了该新型传感器的灵敏度系数,进行了新型传感器与通常力传感器的测试对比试验并利用新型传感器进行了膛内弹底发射药挤压应力测试试验,结果表明,该PVDF传感器具有灵敏度高、价格低、性能可靠、能大面积测试的特点,为发射安全性研究提供了新的测试手段。
Accurate measurement of compression stress of the propellant lery under launching environment is the key in the study of launching （PVDF） sensor for the compression stress of the propellant charge near projectile base for large caliber artil- safety. A new polyethylene vinylidence fluoride charge near projectile base of a certain large caliber artillery was designed. Multisim software was used to simulate and study the amplification periment equipment of dynamic compression and fracture of the propellant charge circuit of the PVDF sensor,and the ex- was used to can＇y out the calibration ex- periment of the new projectile base sensor. The sensitivity coefficient of the new sensor was obtained in the experiment. The comparison experiment between common force sensor and the new sensor was performed, and carry out the compression stress test experiment of the propellant charge near projectile base. the new sensor was used to Experiment result shows that the new PVDF sensor has the characteristics,such as high-sensitivity ,low price, reliable performance ,large area measure- ment and etc. ,and it provides a new measurement method for the study of the launching safety.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2013年第5期1029-1035,共7页
Chinese Journal of Scientific Instrument
基金
高校博士点基金(20113219110025)
国家自然科学基金(11102089)
总装重点预研基金(9140C300501110C3006)
新世纪优秀人才支持计划(NCET-10-0075)资助
关键词
PVDF压电薄膜
挤压破碎
挤压应力
动态标定
PVDF piezoelectric film
compression and fracture
compression stress
dynamic calibration
