Humidity sensor made of metal oxide
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United States of America Patent
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-
Aug 7, 1984
Grant Date -
N/A
app pub date -
Jan 25, 1982
filing date -
Feb 12, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sintered body for a humidity sensor is formed by baking a blend at 1,000.degree. to 1,400.degree. C., the blend comprising ZnO, Cr.sub.2 O.sub.3, V.sub.2 O.sub.5 and M.sub.2 O where M.sub.2 O is at least one metal oxide selected from Li.sub.2 O, Na.sub.2 O and K.sub.2 O. A pair of electrodes are each attached to the corresponding surface of the sintered body to obtain a humidity sensor of metal oxide which is relatively low in its resistive value and stable in its aging characteristic.
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