Study of Airplane Engine Temperature Measurement System Through Lasers and Pyroelectric Detector
Thermoelectric couple was employed in traditional airplane engine nozzle temperature measurement system with the disadvantages of large size,heavy weight,big error,and slow response.This paper presents a new kind of realtime temperature measurement system using laser diode InGaAs/I as light source,and using pyroelectric detector LiTa03 as an optical receiving unit and using a microprocessor as signal processing center.This instrument consists of three parts: optical emitting and receiving system,signal amplifying and controlling system,and display system.The principle,structure,and anti-interference measurement of the system are introduced.Experimental results of airplane engine real-time temperature measurement show that temperature measurement accuracy and response time conform to our requirement in the range of 300–800 C and agree with prediction of theory.All these prove that the design is correct.
Thermoelectric detector Temperature measurement Laser diode Real-time measurement Temperature measurement by radiation
Yuan-Fei Xia Xue-Yuan Li Qiang Ren
The First Aeronautic Institute of Air Force, No.23 HangKong Rd, Xinyang, Henan, China
国际会议
西安
英文
1-10
2013-11-25（万方平台首次上网日期，不代表论文的发表时间）