Method of manufacture of an electric humidity detecting sensing element
Electric humidity detecting sensing element on the basis of a layer of porous aluminum oxide, treated by sealing in boiling water, passivation and tempering at 70 DEG to 110 DEG C., achieving thereby a substantial reduction of subsequent variations of calibrating curves. The time of tempering may ra...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
10.04.1984
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Subjects | |
Online Access | Get full text |
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Summary: | Electric humidity detecting sensing element on the basis of a layer of porous aluminum oxide, treated by sealing in boiling water, passivation and tempering at 70 DEG to 110 DEG C., achieving thereby a substantial reduction of subsequent variations of calibrating curves. The time of tempering may range from 2 to 24 hours. A preferred average time of tempering is 8 hours, with a practical upper limit of 12 hours. |
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Bibliography: | Application Number: US19810326285 |