Driver Circuit Design for a New Eddy Current Sensor in Displacement Measurement of Active Magnetic Bearing Systems

Cao, Zhi; Huang, Yunkai; Peng, Fei; Dong, Jianning

doi:10.1109/jsen.2022.3194567

Cited by 3 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, these sensors have gained increasing scientific attention [ 23 , 24 , 25 , 26 , 27 , 28 ] due their wide range of applications in health [ 29 ], aerospace [ 30 ] and automotive [ 31 ] fields. Additionally, improving sensor operational parameters for AMB systems has become an actual challenge for development [ 32 , 33 , 34 , 35 ]. In the paper [ 33 ], a new kind of differential eddy-current displacement sensor dedicated to AMB systems was shown.…”

Section: Introductionmentioning

confidence: 99%

“…In this solution, both the probe and processing circuit are integrated with a magnetic bearing, which results in cost reduction and enables easier application of AMB systems in practice. Moreover, the paper [ 34 ] shows a novel circuit design for an eddy-current sensor in an AMB system. It is characterized by compact structure, high sensing quality and low costs.…”

Section: Introductionmentioning

confidence: 99%

“…The obtained results showed that the designed eddy-current sensor has features of wide bandwidth and high resolution, which improve the AMB system controllability. The mentioned works [ 32 , 33 , 34 , 35 ] show that the operation and applicability of the AMB system, apart from a properly selected control algorithm, are also influenced by the measuring sensors used. Their frequency response and accuracy significantly affect the quality of the AMB control system.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Influence of Magnetic Field of AMB on Eddy-Current Sensor Operation

Kurnyta-Mazurek

Kurnyta

2023

Sensors

View full text Add to dashboard Cite

This paper presents laboratory results on the influence of the magnetic field of an active magnetic bearing (AMB) on the eddy-current sensor operation. The magnetic suspension technology enables continuous diagnostics and monitoring of a rotary machine and eliminates drawbacks of classical bearing properties. The magnetic bearing system usually consists of two radial and one axial magnetic bearing. It is combined with a control unit, amplifiers and sensors for measuring the instantaneous position of the shaft. For this purpose, eddy-current sensors are frequently used. They operate in close proximity to the electromechanical actuators; therefore, the question arises whether the actuators do not interfere with the correct operation of these sensors. In the paper, the test rig and research plan prepared for that investigation are delivered. Measurement signals were registered from four control channels for different configurations of power supplies for system elements, e.g., with sensors and AMBs turned off, with sensors turn on and at normal work. Recorded time courses are presented and discussed in the paper. For the prepared test rig and AMB/eddy-current sensor configuration, no significant influence of the generated magnetic field from the support is found for the eddy-current sensor output.

show abstract