Details
| Original language | English |
|---|---|
| Pages (from-to) | 419-422 |
| Number of pages | 4 |
| Journal | CIRP Annals - Manufacturing Technology |
| Volume | 70 |
| Issue number | 1 |
| Early online date | 19 May 2021 |
| Publication status | Published - 2021 |
Abstract
Keywords
- Encoder, Magnetic bearing, Micro machining
ASJC Scopus subject areas
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: CIRP Annals - Manufacturing Technology, Vol. 70, No. 1, 2021, p. 419-422.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Position sensor for active magnetic bearing with commercial linear optical encoders
AU - Tantau, Mathias
AU - Morantz, Paul
AU - Shore, Paul
N1 - Funding Information: EPSRC Centre for Innovative Manufacturing in Ultra Precision (EP/I033491/1), Integrated Knowledge Centre in Ultra Precision and Structured Surfaces (EP/E023711/1)
PY - 2021
Y1 - 2021
N2 - Active magnetic bearings are used in a number of applications but their disadvantage is the high asynchronous error due to sensor noise amplification. In this paper a new radial position sensor for active magnetic bearings (AMB) based on linear optical encoders is presented. A commercial encoder scanning head faces a round scale with concentric, coplanar lines on its face. Because such a scale is not readily available, it is made by high precision micro machining and different options are compared. In experiments a measurement noise of 3.5 nm at 10 kHz bandwidth is achieved. In addition, a magnetic bearing is built to demonstrate the sensor in closed-loop.
AB - Active magnetic bearings are used in a number of applications but their disadvantage is the high asynchronous error due to sensor noise amplification. In this paper a new radial position sensor for active magnetic bearings (AMB) based on linear optical encoders is presented. A commercial encoder scanning head faces a round scale with concentric, coplanar lines on its face. Because such a scale is not readily available, it is made by high precision micro machining and different options are compared. In experiments a measurement noise of 3.5 nm at 10 kHz bandwidth is achieved. In addition, a magnetic bearing is built to demonstrate the sensor in closed-loop.
KW - Encoder
KW - Magnetic bearing
KW - Micro machining
UR - http://www.scopus.com/inward/record.url?scp=85106385289&partnerID=8YFLogxK
U2 - 10.15488/10978
DO - 10.15488/10978
M3 - Article
VL - 70
SP - 419
EP - 422
JO - CIRP Annals - Manufacturing Technology
JF - CIRP Annals - Manufacturing Technology
SN - 0007-8506
IS - 1
ER -