Improved meteorological measurements from buoys and ships (IMET) : preliminary comparison of humidity sensors
Crescenti, Gennaro H.
Payne, Richard E.
Weller, Robert A.
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Humidity sensors using various principles of operation are evaluated for the potential use at sea on buoys and ships. Thin film capacitive polymer sensors include the Vaisala Humicap HMP-14U (with WHOI electronics), Hy-Cal Engineerig Ultra-H (also with WHOI electronics), the new Vaisala HMP-35A, and the Rotronic MP-lOOF. Impedance sensors include the Thunder Scientific PC-2101, Phys-Chem PCRC-ll, and the General Eastern 850. The Hygrometrix 8503A is the only organically based cellulose crystallite sensor evaluated. Chilled mirror dew sensors include the EG&G 200M Dewtrak, which was used as a comparative standard, the General Eastern Dew-lO and the WHOI D10IQ Intelligent Dew Point Sensor. The IR-200 infrared optical hygrometer from Ophir is also included in this study. The performance of the EG&G 200M Dewtrak was quite disappointing. Errors of up to 2.5°C in air temperature were observed due to inadequate shielding from solar radiation.
Suggested CitationTechnical Report: Crescenti, Gennaro H., Payne, Richard E., Weller, Robert A., "Improved meteorological measurements from buoys and ships (IMET) : preliminary comparison of humidity sensors", 1990-05, DOI:10.1575/1912/1008, https://hdl.handle.net/1912/1008
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