发明名称 |
Cryogenic pump and air sampler |
摘要 |
A sampling unit, especially for stratospheric air sampling when carried aloft by balloon or another vehicle, comprises a liquid coolant reservoir within an evacuated vessel and provided with a cryogenically cooled adsorber for maintaining the vacuum. Nozzles in the vessel wall can be selectively opened and closed to allow samples to be drawn over cooled fingers on which components of the sample are frozen or sublimed. A vacuum gate can be connected to the device for removal of the cold fingers for transfer to a spectrometer.
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申请公布号 |
US4337669(A) |
申请公布日期 |
1982.07.06 |
申请号 |
US19800198041 |
申请日期 |
1980.10.17 |
申请人 |
KERNFORSCHUNGSANLAGE JUELICH GMBH |
发明人 |
CHATZIPETROS, JOHANN;HELTEN, MANFRED |
分类号 |
F04B37/08;G01N1/22;G01N1/40;(IPC1-7):G01N1/14 |
主分类号 |
F04B37/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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