Design of axis orbit and oil film thickness measuring system

CHEN Guan-jun; LIU Hui; YU Yun-xuan; WANG Bing

doi:10.13873/J.1000-9787(2014)11-0099-03

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Design of axis orbit and oil film thickness measuring system

更新时间：2025-09-11

- Design of axis orbit and oil film thickness measuring system
- Vol. 33, Issue 11, Pages: 99-101+105(2014)
- 作者机构：
  
  中国电子科技集团公司第四十九研究所
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2014)11-0099-03
  CLC： TP212;TP274
- Published：2014
- 稿件说明：
移动端阅览
[1]陈关君,刘慧,于云选,王冰.轴心轨迹与油膜厚度测量系统设计[J].传感器与微系统,2014,33(11):99-101+105.

CHEN Guan-jun, LIU Hui, YU Yun-xuan, et al. Design of axis orbit and oil film thickness measuring system[J]. 2014, 33(11): 99-101+105.
[1]陈关君,刘慧,于云选,王冰.轴心轨迹与油膜厚度测量系统设计[J].传感器与微系统,2014,33(11):99-101+105. DOI： 10.13873/J.1000-9787(2014)11-0099-03.

CHEN Guan-jun, LIU Hui, YU Yun-xuan, et al. Design of axis orbit and oil film thickness measuring system[J]. 2014, 33(11): 99-101+105. DOI： 10.13873/J.1000-9787(2014)11-0099-03.

摘要

实时在线监测和故障诊断对保障大型旋转机械的正常运行极为重要

这些设备包括电厂的发电机组、船用燃气轮机、蒸汽轮机等。设计了一种基于旋转机械轴心轨迹和油膜厚度的测量系统。该系统由电涡流位移传感器、温度传感器、加速度传感器、数据采集设备和测量软件组成。建立了计算轴心轨迹和油膜厚度的数学模型。通过基于最小二乘法的广义多项式拟合对电涡流传感器进行数据补偿

进而有效地提高了系统的测量精度

并通过在不同工况下的试验

验证了系统的测试性能。试验结果表明:该测量系统具有抗干扰能力强

运行稳定可靠

测试线性度可达0.05%。

Abstract

Real-time online monitoring and fault diagnosis are extremely important to guarantee normal operation of equipments of large rotating machinery

these devices include power plant generating set

marine gas turbine

steam turbine

etc. Design a measurement system based on rotating mechanical axis orbit and of oil film thickness measurement system. The system consists of eddy current displacement sensor

temperature sensor

acceleration sensor

data acquisition equipment and measuring software. Establish mathematical model for calculation of axis orbit and oil film thickness. Through generalized polynomial fitting based on least squares method to compensate data of eddy current sensor

and effectively improve measurement precision of the system

and through test

under different working conditions

verify test performance of system. Experimental results show that the measurement system has strong anti-interference ability

stable and reliable running

test linearity can reach 0. 05 %.

关键词

Keywords

references

冷凝器热态自动测试系统设计 [J]. 刘慧,简荣坤,李冰冰. 传感器与微系统 . 2013(10)

基于LabVIEW的铂电阻器自动测试系统 [J]. 王冰,唐胜武,刘慧. 传感器与微系统 . 2012(12)

国产300MW汽轮机凝汽器改造及其经济性分析 [J]. 刘桂生. 热力发电 . 2006(07)

我和LabVIEW[M]. 北京航空航天大学出版社 , 阮奇桢, 2009

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