maxon motor brushless DC motor for use in a vacuum
maxon motor has released a brushless DC motor suitable for use in an ultrahigh vacuum.
The 22 mm, 24 V brushless DC motor is an off-the-shelf solution for an application that traditionally requires high levels of customisation. The stainless steel, SmCo magnet-based brushless motor features low outgassing and can be baked out at 240°C. It is also vibration tested to MIL-STD810F.
Scientific and vacuum applications for DC motors are varied, an example being the Watt balance — a machine developed to compare masses with electrical values in a vacuum. The balance seeks to use Planck’s constant to redefine the kilogram in terms of voltage and current. The vacuum-capable motor has allowed scientists to build a 3-axis robot, providing the necessary mass movements for the experiment.
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