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Small direct-current motor for producing motion in a cryogenic environment, and a method for monitoring its orientation.

Author(s) : WALKER I. R.

Type of article: Article

Summary

The motor is a skew-wound ironless device with a coaxial gearhead, and is capable of operating at a temperature of 4 K, in a vacuum, and in a magnetic field of several hundred gauss. The position monitoring arrangement requires no modifications to the motor or the addition of extra hardware, such as rotary encoders or potentiometers. Based on the angular dependence of the rotor inductance, it has been found to work with a number of different motors of the skew-wound ironless type, both at room temperature and at 4 K.

Details

  • Original title: Small direct-current motor for producing motion in a cryogenic environment, and a method for monitoring its orientation.
  • Record ID : 1994-2111
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 64 - n. 3
  • Publication date: 1993/03
  • Document available for consultation in the library of the IIR headquarters only.

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