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The on-rotor sensing (ORS) technique has been successfully applied as a novel wireless triaxial acceleration sensing technique for condition monitoring of horizontal rotor mechanical system. However, as a triaxial acceleration sensor by nature, mounting and fabrication errors in the ORS system will significantly differentiate the dynamic response output of different ORS sensors, especially when applying ORS sensors to identify minor faults or slight condition changes of a mechanical system, and standardization of the ORS system becomes particularly critical. In this paper, theoretical and experimental analysis reveals that the inclination of the sensor plane will affect the axial dynamic response output of the ORS. The 1st order rotational frequency magnitude of the axial dynamic response of the ORS is sinusoidally related to the inclination of the sensor plane. The root-mean-square (RMS) value of the low-frequency band can be used to reveal the inclination of the rotor sensor plane. These findings will provide quality control indicators for the standardization of ORS system production and manufacturing.

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Defining Quality Indicators Based on Axial Dynamic Response Output for Quality Control of On-Rotor Sensor

  • 会议论文

  • 发表日期：

    2026年

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  • Zhifeng Hu,
  • Xiaoli Tang,
  • Yuandong Xu,
  • Zewen Zhou,
  • Fengshou Gu,
  • Andrew D. Ball

摘要

The on-rotor sensing (ORS) technique has been successfully applied as a novel wireless triaxial acceleration sensing technique for condition monitoring of horizontal rotor mechanical system. However, as a triaxial acceleration sensor by nature, mounting and fabrication errors in the ORS system will significantly differentiate the dynamic response output of different ORS sensors, especially when applying ORS sensors to identify minor faults or slight condition changes of a mechanical system, and standardization of the ORS system becomes particularly critical. In this paper, theoretical and experimental analysis reveals that the inclination of the sensor plane will affect the axial dynamic response output of the ORS. The 1st order rotational frequency magnitude of the axial dynamic response of the ORS is sinusoidally related to the inclination of the sensor plane. The root-mean-square (RMS) value of the low-frequency band can be used to reveal the inclination of the rotor sensor plane. These findings will provide quality control indicators for the standardization of ORS system production and manufacturing.