FURTHER IMPROVEMENTS IN THE ELECTRONIC DEW-POINT HYGROMETER

Earl W. Barrett University of Chicago

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Robert L. Slater University of Chicago

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Kenneth E. Newton University of Chicago

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Abstract

The electronic dew-point hygrometer described by Barrett and Herndon in 1951 has been improved in three distinct areas: the servo-amplifier system, the optical system in the sensing head, and the operating-adjustment system. The improvements are described, and the operational use of the improved hygrometer is discussed briefly.

Abstract

The electronic dew-point hygrometer described by Barrett and Herndon in 1951 has been improved in three distinct areas: the servo-amplifier system, the optical system in the sensing head, and the operating-adjustment system. The improvements are described, and the operational use of the improved hygrometer is discussed briefly.

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