Cryogenic Hygrometer -
CR-1A - from Buck Research Instruments L.L.C. The
CR-1A is a high performance, cryogenically cooled hygrometer.
CR-1 instruments have been routinely used aboard NASA aircraft and elsewhere for years. The
CR-1A is a miniaturized version of the original
CR-1, and uses a much smaller LN2 dewar. Operating time per filling of LN2 ranges from 6 to 8 hours, depending on the dew points being measured. Options include: ±0.1% accuracy pressure transducer, for measuring mixing ratio...
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