一种新型光纤高温计的研制

 基于国产GDB159/142光电倍增管（PMT），采用光纤传输并结合二向色分光原理研制了高速光学高温计系统，测量波长覆盖340～811 nm，响应时间2～3 ns，可测量2 500～15 000 K的冲击温度。脉冲线性检测结果表明，6个通道的动态线性均大于200 mV（50 Ω负载）。给出了溴钨灯光谱辐照度标定方法和动态应用实例。

Development of a New Fiber-Coupled Optical Pyrometer

A fast optical pyrometer for shock temperature measurement was developed based on GDB159/142 photo-multiplier tubes (PMT) and one single optical fiber incorporated with dichroic filters. Main features include the central wavelengths within the spectrum range of 340～811 nm, a rise time of 2～3 ns, and measurable shock temperature span of 2 500～15 000 K. Results of the pulse-linearity measurements indicate that the dynamical linearity values for all six channels are greater than 200 mV (50 Ω load resistor) which meet the requirement for recording on the digital oscilloscopes with good signal-to-noise ratio. Calibration method by the spectral irradiance with a halogen lamp and examples of dynamic measurements are presented. It is demonstrated that this system produces reasonable outputs with stable performance at an economical cost.