Application of the SSPM in Sapphire Fiber Black-Body Cavity Transient High Temperature Sensor

Sapphire fiber blackbody cavity transient high temperature sensor based on a whole blank-body radiation theory was introduced,and blank-body cavity production and weak photoelectric signal detection was analyzed.Testing results of input and output characteristics for the solid-state photomultiplier(SSPM) were also given.The experimental results show that the temperature range and signal to noise ratio of the sensor are increased using new photoelectric detector and film material.The temperature sensor measuring range upper limit is greater than 2 000 ℃ and the response time less than 100 ms.It can meet the research and industrial production with some specific environment for temperature measurement.