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 real-time 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. © 2014 Springer-Verlag.
CITATION STYLE
Xia, Y. F., Li, X. Y., & Ren, Q. (2014). Study of airplane engine temperature measurement system through lasers and pyroelectric detector. In Lecture Notes in Electrical Engineering (Vol. 296 LNEE, pp. 1–10). Springer Verlag. https://doi.org/10.1007/978-3-642-54236-7_1
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