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.
- Research Organization:
- Westinghouse Idaho Nuclear Co
- DOE Contract Number:
- AC07-84ID12435
- Assignee:
- Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
- Patent Number(s):
- US 5,501,080/A/
- Application Number:
- PAN: 8-355,689
- OSTI ID:
- 212600
- Country of Publication:
- United States
- Language:
- English
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