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Microsphere-Based Microsensor for Miniature Motors' Vibration Measurement.

Authors :
Xu, Kaichuan
Jiang, Chunlei
Ban, Qilu
Dai, Pan
Fan, Yaqiang
Yang, Shijie
Zhang, Yue
Wang, Jiacheng
Wang, Yu
Chen, Xiangfei
Zeng, Jie
Wang, Feng
Source :
Sensors (14248220). Nov2023, Vol. 23 Issue 22, p9196. 14p.
Publication Year :
2023

Abstract

We present a microsphere-based microsensor that can measure the vibrations of the miniature motor shaft (MMS) in a small space. The microsensor is composed of a stretched fiber and a microsphere with a diameter of 5 μm. When a light source is incident on the microsphere surface, the microsphere induces the phenomenon of photonic nanojet (PNJ), which causes light to pass through the front. The PNJ's full width at half maximum is narrow, surpassing the diffraction limit, enables precise focusing on the MMS surface, and enhances the scattered or reflected light emitted from the MMS surface. With two of the proposed microsensors, the axial and radial vibration of the MMS are measured simultaneously. The performance of the microsensor has been calibrated with a standard vibration source, demonstrating measurement errors of less than 1.5%. The microsensor is expected to be used in a confined space for the vibration measurement of miniature motors in industry. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14248220
Volume :
23
Issue :
22
Database :
Academic Search Index
Journal :
Sensors (14248220)
Publication Type :
Academic Journal
Accession number :
173867692
Full Text :
https://doi.org/10.3390/s23229196