G - Physics – 01 – N
Patent
G - Physics
01
N
73/71
G01N 27/12 (2006.01)
Patent
CA 1314412
CONSTANT TEMPERATURE SORPTION HYGROMETER Abstract of the Disclosure A constant temperature sorption hygrometer comprising a differential pair of substrate-supported heated metal film sensing elements, one coated with a hygroscopic layer of microporous aluminum oxide and the other coated with a non-hygroscopic protective coating or uncoated, both operated by feedback controlled constant temperature bridge circuits; together with alternate forms of hygrometer transducer apparatus employing differential sorption detection of water vapor.
568306
Djorup Robert S.
Smart & Biggar
LandOfFree
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