Ehrenfried Of Metritape Presents Paper At SNAME New England Meeting

The recent meeting of The Society of Naval Architects and Marine Engineers, New England section, held at the New England Aquarium, Central Wharf, Boston, Mass., featured the presentation of a technical paper entitled "Marine Installation and Operating Requirements for Continuous Electric Liquid-Level Gauging Equipment." The paper was delivered by Albert D. Ehrenfried, founder and president of Meritape, Inc. of Concord, Mass. The author first presented an overview of the liquid-level gauging requirement for a wide range of marine float- ing structures, including tankers, drydocks, drill rigs, and military vessels. Applications he described included the accurate determination of cargo, ballast, and fuel oil levels; the measurement of ship's draft, trim/list, hog/sag; and the quantification of compartment flooding for naval damage control.

The principles and performance characteristics of electric distributed- resistance level gauging equipment developed by the author were then set forth, along with current practices for integrating such gauging into the hull structure. Human factors relating to the equipment, including training for familiarization, calibrating procedures, and trouble- shooting, were also discussed.

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