Runout Tracking in Electric Motors Using Self-Mixing Interferometry

被引：29

作者：

Atashkhooei, Reza ^{[1
]}

Urresty, Julio-Cesar ^{[2
]}

Royo, Santiago ^{[1
]}

Riba, Jordi-Roger ^{[2
]}

Romeral, Luis ^{[2
]}

机构：

[1] Univ Politecn Cataluna, Ctr Sensors Instruments & Syst Dev, Res Ctr CD6, Barcelona 08222, Spain

[2] Univ Politecn Cataluna, Dept Elect Engn, Barcelona 08222, Spain

来源：

IEEE-ASME TRANSACTIONS ON MECHATRONICS | 2014年 / 19卷 / 01期

关键词：

Feedback interferometry; motor shaft displacement; optical probe; permanent magnet synchronous motors (PMSMs); runout tracking; self-mixing; shaft proximity probe; LASER-DIODE; DISPLACEMENT; INTERFERENCE;

D O I：

10.1109/TMECH.2012.2226739

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, a self-mixing interferometry sensor has been used as a proximity probe to measure possible runout in permanent magnet synchronous motors, for fault diagnosis. A general procedure for the measurement of the 2-D trajectory of the motor shaft is described in detail, including procedures for the characterization of the uncertainty due to the shape of the shaft, and the management of speckle noise. The performance of the proposed sensor has been compared to that of a commercial Polytec laser vibrometer, for validation purposes. Results show inaccuracies in the order of +/- 6 mu m, which agree well with the measured uncertainty introduced by shaft surface imperfections.

引用

页码：184 / 190

页数：7

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