摘要
利用热电偶测量了3支不同类型激光笔在不同距离处的温度变化情况,并对报纸、火柴、棉花3种可燃物进行了引燃实验.结果表明,在5～160 cm距离范围内,0.3W绿光、0.3W红光、1.6W蓝光激光笔光束所能达到的最高温度分别约为30～40、50～70、170～190℃;引燃实验中,火柴最易被引燃,报纸次之,棉花最难;引燃能力的强弱依次为1.6W蓝光、0.3W红光、0.3W绿光;一定范围内可燃物与激光笔距离越大,则越难被引燃.
Thermocouple was used to measure the temperature change at different distance away from three different types of laser pointers, and ignition experiment of the newspaper, mat- ches, cotton was made. the results showed that in 5~ 160 cm, the peak temperature of 0. 3 W green, 0.3 W red and 1. 6 W blue laser pointer were 30~40, 50~70, 170~190℃ separate- ly;match was the most easily ignited, newspaper came second and cotton the lase;the ignition ability was 1.6 W blue, 0.3 W red, 0.3 W green in sequence; the longer the distance between combustibles and laser pointer, the more difficult it was to be ignited.
出处
《消防科学与技术》
CAS
北大核心
2015年第12期1574-1576,共3页
Fire Science and Technology
关键词
激光笔
温度
引燃能力
可燃物
laser pointer
temperature
ignition ability
combustible
