Development and Evaluation of a Prototype Turbidity Sensor for In Situ, Long-TermMeasurements

摘要

State and federal regulations require the U.S. Army Corps of Engineers (USACE) tomitigate adverse environmental impacts resulting from increased turbidity levels which occur during coastal operations. A turbidity monitoring system for collecting long term in situ measurements is currently in the conceptual design phase. A transmissometer, which is the sensing device for turbidity measurement, fabricated, and tested, and is the focus of this report. The design of the transmissometer considers the requirements for successful long-term in situ deployments. The laboratory calibrated prototype sensor provides the basis for the design and development of a long term operation USACE turbidity monitoring system. The design of the prototype transmissometer and the laboratory tests, calibration, and results are presented.