Recent Developments in Hydrologic Instrumentationby Vito J. Latkovich, US Geological Survey, Hydrologic, Instrumentation Facility, NSTL, MS, USA,
Abstract: The availability of space-age materials and implementation of state-of-the-art electronics is making possible the recent developments of hydrologic instrumentation. Material developments include: Synthetic-fiber sounding and tag lines; fiberglass wading rod; polymer (plastic) sheaves, pulleys and sampler components; and polymer (plastic) bucket wheels for current meters. These materials are very cost effective and efficient. Electromechanical and electronic developments and applications include: adaptable data acquisition system; downhole sampler for hazardous substances; current-meter digitizer; hydraulic power/drive system for discharge measurements and water-quality sampling; non-contact water-level sensors; minimum data recorder; acoustic velocity meters, and automated current meter discharge-measurement system.
Subject Headings: Instrumentation | Electronic equipment | Polymer | Plastics | Data collection | Hydrologic data
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