ShareCYLINDER VALVE CONTROLLER FOR AN UNINTERRUPTED SUPPLY OF CRYOGENIC LIQUID.
Author(s) : ULVICK L. M., EVELYN M. P. d'
Type of article: Article
Summary
A SIMPLE, INEXPENSIVE, SOLID-STATE CONTROLLER IS DESCRIBED WHICH MAINTAINS AN UNINTERRUPTED SUPPLY OF LIQUID NITROGEN BY SWITCHING A SOLENOID VALVE FROM ONE SUPPLY CYLINDER TO ANOTHER WHEN THE FIRST BECOMES EXHAUSTED. THE DEVICE IS USED IN CONJUNCTION WITH A COMMERCIAL LIQUID-NITROGEN LEVEL CONTROLLE THE CIRCUIT USES A 7474 FLIP-FLOP AS A BISTABLE MEMORY ELEMENT, A THERMISTOR TEMPERATURE SENSOR, AND A CLOCK TO WAIT AN APPROPRIATE INTERVAL FOR THE LIQUID-NITROGEN TRANSFER LINE TO BECOME COLD.
Details
- Original title: CYLINDER VALVE CONTROLLER FOR AN UNINTERRUPTED SUPPLY OF CRYOGENIC LIQUID.
- Record ID : 1991-0972
- Languages: English
- Source: Rev. sci. Instrum. - vol. 61 - n. 12
- Publication date: 1990
- Document available for consultation in the library of the IIR headquarters only.
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TWO-PHASE TRANSFER LIQUID NITROGEN COOLER FOR R...
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- Date : 1983/12
- Languages : Chinese
- Source: J. chin. Assoc. Refrig. - n. 4
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- Author(s) : CHUMBLEY P. E., HULSE M. M.
- Date : 1985/07
- Languages : English
- Source: Rev. sci. Instrum. - vol. 56 - n. 7
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HEAT TRANSFER IN FLOATING INSULATIONS FOR OPEN ...
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- Date : 1981
- Languages : English
- Source: Cryogenics - vol. 21 - n. 11
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PROPORTIONAL LIQUID-NITROGEN VALVE AND CONTROL ...
- Author(s) : CHRISTMAN S. B.
- Date : 1990
- Languages : English
- Source: Rev. sci. Instrum. - vol. 61 - n. 9
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- Date : 1983
- Languages : English
- Source: Hazard. Cargo Bull. - vol. 4 - n. 4
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