A new type of electric hygrometer, the “carbon film element” is described. Its response to humidity changes is by electronic rather than electrolytic conduction. Main features of the new element are: high sensitivity to moisture changes, rapid response, absence of polarization effect, and a calibration independent of temperature between 0° and 40° C. Components of the carbon film, performance data, and manufacturing techniques are described.
Research Article| 21 August 2018
The Carbon Film Electric Hygrometer Element
Bull. Amer. Meteor. Soc. (1954) 35 (2): 60–62.
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Smith, W. J., and N. J. Hoeflich, 1954: The Carbon Film Electric Hygrometer Element. Bull. Amer. Meteor. Soc., 35, 60–62, https://doi.org/10.1175/1520-0477-35.2.60.
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