A salinity sensor system for estuary studies

Thanh-Tung Pham; Thomas Green; Jonathan Chen; Phuong Truong; Aditya Vaidya; Linda Bushnell; Thanh-Tung Pham; Thomas Green; Jonathan Chen; Phuong Truong; Aditya Vaidya; Linda Bushnell

doi:10.3934/nhm.2009.4.381

Networks and Heterogeneous Media

2009, Volume 4, Issue 2: 381-392. doi: 10.3934/nhm.2009.4.381

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A salinity sensor system for estuary studies

1.
Electrical Engineering Department, Box 352500, University of Washington, Seattle, WA 98195-2500

Received: 01 September 2008 Revised: 01 February 2009
Primary: 58F15, 58F17; Secondary: 53C35.

In this paper, we present the design, development and testing of a salinity sensor system for estuary studies. The salinity sensor was designed keeping size, cost and functionality in mind. The target market for this sensor is in hydrology where many salinity sensors are needed at low cost. Our sensor can be submersed in water for up to two weeks (all electronics are completely sealed) while salinity is recorded on-board at user-defined intervals. The data is then downloaded to a computer in the laboratory, after which the sensor is recharged, cleaned for biofouling and ready to be used again. The system uses a software program to download, display and analyze the sensor data. Our initial laboratory testing shows the salinity sensor system is functional. The novelty of this work is in the use of toroidal (inductive) conductivity sensors, the resulting low cost and simple design.
- Salinity Sesors for Hydrology,
- magnetic coils
Citation: Thanh-Tung Pham, Thomas Green, Jonathan Chen, Phuong Truong, Aditya Vaidya, Linda Bushnell. A salinity sensor system for estuary studies[J]. Networks and Heterogeneous Media, 2009, 4(2): 381-392. doi: 10.3934/nhm.2009.4.381

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Abstract

In this paper, we present the design, development and testing of a salinity sensor system for estuary studies. The salinity sensor was designed keeping size, cost and functionality in mind. The target market for this sensor is in hydrology where many salinity sensors are needed at low cost. Our sensor can be submersed in water for up to two weeks (all electronics are completely sealed) while salinity is recorded on-board at user-defined intervals. The data is then downloaded to a computer in the laboratory, after which the sensor is recharged, cleaned for biofouling and ready to be used again. The system uses a software program to download, display and analyze the sensor data. Our initial laboratory testing shows the salinity sensor system is functional. The novelty of this work is in the use of toroidal (inductive) conductivity sensors, the resulting low cost and simple design.
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