Measurement technology of thermocouple sensor in the liquid rocket engine test(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Title:: Measurement technology of thermocouple sensor in the liquid rocket engine test

Author(s):: Xiao Peibin; Xi'an Aerospace Propulsion Test Technique Institute，Xi'an 710100，China

Keywords:: thermocouple sensor; liquid rocket engine test; temperature measurement

Abstract:: Thermocouple sensor has steady performance，simple structure，extensive measure。 ment range．It is used extensively in liquid rocket engine ground experiment for its safe and cheap characteristics．Because of its low output signal，the measurement result of the thermocouple sensor is inaccurate or even without an measurement result if it is not used normally in the severe environ· ment of engine experiment．This thesis aims at these problems in the measurement，discusses some key techniques and technical requirements SO as to enhance the stability and precision of the thermocouple sensor purposely．Engineering practice shows that the reliability and precision has greatly improved．

[l]赵万明．液氧／煤油发动机试车主要参数测量方法[J]．火箭推进，2006，32(5)：51—55+64．
[2]单成祥．传感器原理与应用[M]．国防工业出版社，2006．

Last Update: 1900-01-01