火药燃烧宽波段热辐射温度测量方法研究

为了准确测量火药燃烧时的高温瞬态火焰表面温度,利用辐射测温理论提出了火药燃烧宽波段热辐射测温方法,集成设计了高温瞬态温度测量系统,并采用单基发射药自由场条件下的燃烧试验,验证了高温瞬态温度测量系统的有效性和可靠性。结果表明,自由场条件下3m处的单基发射药燃烧火焰表面温度在1~10 kg等4种不同药量下实测为1500~1800℃,数据重复性较好,且测量结果与理论计算一致。

Research on Measurement Method of Propellant Combustion Temperature with Broadband Thermal Radiation

In order to accurately measure the transient high temperature of propellant combustion,the measurement method of broadband thermal radiation temperature for propellant combustion was studied on the thermal radiation theory.The high temperature transient measurement system was integrated;the validity and reliability of the temperature measurement system were verified by single-base propellant combustion test under free-field conditions.Results show that the flame temperatures are between 1500 ℃ and 1800 ℃ when the samples of propellant are placed 3 m away,and the data are repeatable and coincide with theory.