Brushless servos go to extremes of cold
An
Empire Magnetics product story
Edited by the Engineeringtalk editorial team
Jun 3, 2004
New from Empire Magnetics are Cryogenic Series brushless servomotors with resolver feedback.
New from Empire Magnetics are Cryogenic Series brushless servomotors with resolver feedback.
Available in standard size 23, these motors are specifically engineered for motion control applications that require reliable motor operation in extremely cold conditions.
These motors have been field-tested for reliable operation in temperatures as low as 20K, and can potentially operate at temperatures as low as 0K, but that is untested.
They are constructed with special dry lubrication and exotic chromium-nickel steel alloy components for compatible thermal expansion characteristics and reduced brittleness - highly important characteristics for motors that will be subjected to very cold temperatures.
Standard servomotors are typically rated for 0-100C operation, but Empire's Cryogenic Series motors vastly extend that operating range for applications such as superconductor research, observatory instrumentation (eg infra-red sensor testing), semen storage, and specialised research in physics and military application.
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