Measurement of static balance for incomplete spherical superconducting rotor with compressed air

GAO Fei; WANG Hui; HU Xin-ning; WANG Qiu-liang

doi:10.3788/OPE.20122007.1566

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Measurement of static balance for incomplete spherical superconducting rotor with compressed air

更新时间：2020-08-12

- Measurement of static balance for incomplete spherical superconducting rotor with compressed air
- Optics and Precision Engineering Vol. 20, Issue 7, Pages: 1566-1572(2012)
- 作者机构：
  
  1. 中国科学院研究生院北京,100039
  2. 中国科学院电工研究所应用超导重点实验室北京,100190
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122007.1566
  CLC： TM37
- Received：23 April 2012，
  
  Revised：08 May 2012，
  
  Published Online：10 July 2012，
  
  Published：10 July 2012
- 稿件说明：
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高霏, 王晖, 胡新宁, 王秋良. 不完整球形超导转子静平衡的气浮测量[J]. 光学精密工程, 2012,20(7): 1566-1572

GAO Fei, WANG Hui, HU Xin-ning, WANG Qiu-liang. Measurement of static balance for incomplete spherical superconducting rotor with compressed air[J]. Editorial Office of Optics and Precision Engineering, 2012,20(7): 1566-1572
高霏, 王晖, 胡新宁, 王秋良. 不完整球形超导转子静平衡的气浮测量[J]. 光学精密工程, 2012,20(7): 1566-1572 DOI： 10.3788/OPE.20122007.1566.

GAO Fei, WANG Hui, HU Xin-ning, WANG Qiu-liang. Measurement of static balance for incomplete spherical superconducting rotor with compressed air[J]. Editorial Office of Optics and Precision Engineering, 2012,20(7): 1566-1572 DOI： 10.3788/OPE.20122007.1566.

摘要

提出了一种控制转子不平衡量方位的气浮平衡测定方法来提高对空心薄壁不完整球形超导转子平衡量测定的精度。采用在转子内部增加重量的方法来改变转子的不平衡量大小

使得该转子的不平衡量的方位角处于精确测量范围内

当增重量变化时其测量值也会发生相应的变化

通过静不平衡计算的相关公式即可得出其静不平衡量。该方法能够提高这种超导球形转子平衡测定的精度

不破坏转子的加工精度

不影响转子的电磁特性、超导特性等。测量转子偏心距的波动大小在±6 μm之内

偏心距

轴分量的波动在±8 μm之内

同时可有效提高超导重力计等基于该类型超导转子的仪器的工作性能和测量精度

对于其它无机械支撑轴转子的平衡测定也有一定借鉴意义。测量过程中采用的设备简单

实验周期短

测量结果精度较高。

Abstract

A flotation method involving the control of the unbalance orientation of a rotor is put forward to improve the measurement precision of mass imbalance of an incomplete spherical superconducting rotor. By adding additional weights within the rotor to change its quantity of the mass unbalance

this method limits the azimuth of the mass unbalance to an accurate measurable range. As the additional weights change

the observed values change simultaneously

and the mass unbalance can be derived by a relevant formula. This method can improve the measured precision without any damage to the rotor or influence on its electromagnetic and superconducting properties. The fluctuation of the measured offset is within ±6 μm

and its

-axis component is within ±8 μm. Moreover

it can improve the working performance of some types of the devices based on the rotor greatly

and can offer some references for other balanced measurements of the machines without mechanical support for its rotor. The measurement equipment of this method is simple

precise

and its experimental period is short.

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Keywords

references

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