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Superconducting bearings assisted by self-sensing AMBs in liquid nitrogen.

Author(s) : KOMORI M., SHIRAISHI C.

Type of article: Article

Summary

This article describes newly developed superconducting magnetic bearings (SMBs) assisted by self-sensing active magnetic bearings (AMBs). The self-sensing AMBs detect the gaps between the rotor and the electromagnets. The principle of the self-sensing sensors is based on a differential transformer. The sensitivity in liquid nitrogen is almost equal to that in air. The sensor is found to be useful in liquid nitrogen at 77 K (-196 °C). Moreover, the sensors are applied to the SMBs. In this paper, dynamics of the SMBs with self-sensing AMBs are discussed. From the results, it is found that the system is useful and promising.

Details

  • Original title: Superconducting bearings assisted by self-sensing AMBs in liquid nitrogen.
  • Record ID : 2004-0499
  • Languages: English
  • Source: JSME int. J., C - vol. 46 - n. 2
  • Publication date: 2003/06
  • Document available for consultation in the library of the IIR headquarters only.

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