摘要
采用直线聚焦型光电倍增管(PMT),研制了用于冲击波温度测量的8通道辐射高温计。改进后的PMT分压器电路使系统各通道脉冲输出线性均大于8mA(-800V高压),饱和光强域值达到约100μW量级,响应时间(上升沿)小于3ns。该系统对光谱辐亮度值的相对测量不确定度为约3%,已成功用于测量50kK以内的高温辐射历史和冲击波温度。
By adopting linear-focused photomultiplier tubes （PMT）, an eight-channel radiation pyrom- eter was developed for shock temperature measurements. The dynamic linearity in each channel of the pyrometer, using the developed voltage divider circuit, exceeds 8 mA at the work voltage of -800 V. The saturated light intensity is better than the level of 100 μW and the response time is less than 3 ns. The relative uncertainties of spectral radiances, which are measured by the pyrometer, are about 3 %. The pyrometer was successfully used to measure the radiance history and shock temperature within 50 kK.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2009年第6期625-631,共7页
Explosion and Shock Waves
关键词
爆炸力学
冲击波温度
光电倍增管
高温计
动态线性
mechanics of explosion
shock temperature
photomultiplier tube
pyrometer
dynamic linearity
