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Title: Self-contained cryogenic gas sampling apparatus and method

Apparatus for obtaining a whole gas sample, is composed of: a sample vessel having an inlet for receiving a gas sample; a controllable valve mounted for controllably opening and closing the inlet; a valve control coupled to the valve for opening and closing the valve at selected times; a portable power source connected for supplying operating power to the valve control; and a cryogenic coolant in thermal communication with the vessel for cooling the interior of the vessel to cryogenic temperatures. A method is described for obtaining an air sample using the apparatus described above, by: placing the apparatus at a location at which the sample is to be obtained; operating the valve control to open the valve at a selected time and close the valve at a selected subsequent time; and between the selected times maintaining the vessel at a cryogenic temperature by heat exchange with the coolant. 3 figs.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
212600
Assignee:
Lockheed Idaho Technologies Co., Idaho Falls, ID (United States) PTO; SCA: 420200; PA: EDB-96:066747; SN: 96001565481
Patent Number(s):
US 5,501,080/A/
Application Number:
PAN: 8-355,689
Contract Number:
AC07-84ID12435
Resource Relation:
Other Information: PBD: 26 Mar 1996
Research Org:
Westinghouse Idaho Nuclear Co
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; SAMPLERS; DESIGN; GASES; SAMPLING; POWER SUPPLIES; CRYOGENIC FLUIDS; COOLING; ACTUATORS; OPERATION

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