5/22/11

Confusing about supeconductivity devices

Superconductor exists in an acociatate with a critical temperature Tc. In fact, temperature does not stay at the same scale forever unless it is in lab condition. It means for every devices having supeconductivity character, they have to include a temperature adjuster to keep them always in Tc. I wonder whether my assumption is true?
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2 comments:

  1. 助守和May 22, 2011 at 9:58 PM

    In a closed system the temperature will remain constant. The catch is that almost all systems are not closed. As such, outside effects can change the temperature of a superconductor. So yes, superconducting devices will need somekind of temperature regulator to keep the system below Tc.

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  2. 助守和May 22, 2011 at 10:05 PM

    One example is the James webb Space Telescope. It uses a solar sail to keep the temperature of its science instruments at low temperatures.

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