Apparatus and method for regulating temperature in a cryogenic t

Details Apparatus and method for regulating temperature in a cryogenic t Apparatus and method for regulating temperature in a cryogenic t

1996-07-12

1997-07-15

Capossel, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62 492, 62 511, F25J 100

Patent

active

056472285

ABSTRACT:
A dual capillary inlet cryogenic test chamber having the ability to continuously regulate temperature between about 1.5 K. and 400 K. A controllably heated capillary tube is located in the cryogenic reservoir, spaced from the test chamber and thermally insulated from the cryogen. This capillary tube has a characteristic impedance to fluid flow. A second low temperature, high impedance capillary tube inlet is also in the cryogenic reservoir and is connected between the cryogen reservoir and the test chamber. The combination of a control system with pressure and temperature feedback, combined with the two inlet tubes of different impedance, enables the apparatus to operate continuously and stably at any temperature within its operating range, or to smoothly sweep through any predetermined temperature range.

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S.H.E. Conductus - Sequence of Temperature Control System Hardware (Date Unknown ).

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