Rotor Axial Displacement Monitoring via Radial Measuring Method Using Printed Bar Code

doi:10.7652/xjtuxb201904001

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Rotor Axial Displacement Monitoring via Radial Measuring Method Using Printed Bar Code

更新时间：2025-07-09

- Rotor Axial Displacement Monitoring via Radial Measuring Method Using Printed Bar Code
- Vol. 53, Issue 4, Pages: 1-8(2019)
- 作者机构：
  
  西安交通大学现代设计及转子轴承系统教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201904001
  CLC： TH133
- Online First：10 April 2019，
  
  Published：2019
- 稿件说明：
移动端阅览
Rotor Axial Displacement Monitoring via Radial Measuring Method Using Printed Bar Code[J]. 2019, 53(4): 1-8.
DOI：

Rotor Axial Displacement Monitoring via Radial Measuring Method Using Printed Bar Code[J]. 2019, 53(4): 1-8. DOI： 10.7652/xjtuxb201904001.

摘要

针对转子轴向空间受限等特殊工况下常规的轴向位移测量方法难以适用的情况

提出了一种基于时间延迟原理的转子轴向位移径向测量方法

通过在径向监测转子表面打印条码位置

实现转子轴向位移的测量。首先提出了轴向位移时间延迟测量原理

确定了基于打印条码和光学传感器的监测方案

通过仿真分析了条码参数等对测量误差的影响规律

最后搭建实验台对所提出的位移测量方法进行实验验证。结果表明:在转子1 000 r/min的实验条件下

轴向位移测量误差小于5 μm

初步验证了方法的可行性; 此外

条码倾角越大测量误差越大

条码宽度的变化对误差影响较小。该方法解决了常规轴向位移测量中存在的轴向空间受限、通用性差等难题

为转子系统的轴向位移监测提供了一种新思路。

Abstract

For a more complex rotor system

the common measuring method is no longer applicable due to the extremely limited rotor axial space. An axial displacement measurement method is proposed

where the optical sensor is placed at the radial position of the rotor to detect the bar code adhered on rotor to obtain axial displacement. Following time delay principle

the monitoring scheme according to printed bar code and optical sensor is formulated

and the influence of bar code parameters and the other factors on measurement error are analyzed. A displacement rig is constructed to verify the accuracy

it is found that the measurement error does not exceed 5 μm under rotor speed of 1 000 r/min; the larger the bar code tilt angle

the greater the measurement error; varying bar code width has slight influence on the measurement error. This scheme thus breaks through the limitation of axial space and suits to different shafting systems.

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references

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