High Temperature Measurement Technology with Blackbody Sapphire Fiber Sensor
(0) A new high temperature sensor sputtered the ceramics film on the tip of sapphire fiber is described. The system includes blackbody sapphire fiber sensor, taper fiber, transmission optical fiber, narrow bandpass filter, integrated photoamplifier and data acquisition device. The working principle, block diagram, static calibration dynamics testing and experimental result are given. The upper high temperature is up to 2000℃. The static calibration is performed by comparing the outputs between the calibrated Tungstenrhenium thermocouple and the sapphire fiber sensor, both placed in a stability high temperature field. The dynamics character is done by focusing a CO2 laser with high peak power into the sensor. Dynamics respondent curve shows that its respondent time is less than 20 ms, which is suitable for measuring the transient high temperature such as the burning and exploration of powders as well as the firing of engine.
Metrology Sapphire fiber High temperature sensor Static calibration Dynamics calibration
WANG Gao WANG Xiao-Yan GONG Hui
Key Laboratory of Instrumentation Science & Dynamic Measurement North University of China Ministry o Key Laboratory of Instrumentation Science & Dynamic Measurement North University of China Ministry o Department of Photo-electric Engineering, School of Information Science and Technology,Beijing Insti
国际会议
2008年国际温度与热物性测量会议(TEMP BEIJING 2008)
北京
英文
345-348
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）