Conference proceeding
Antennas for mussel-based underwater biological sensor networks in rivers
Proceedings of the Fifth ACM International Workshop on underwater networks, pp.1-4
WUWNet '10
09/30/2010
DOI: 10.1145/1868812.1868825
Abstract
Researchers are working on using freshwater mussels as biological sensors. A sensor placed on the mussel detects the mussel's rhythmic opening and closing, or gape. Changes in the gape can indicate changes in the mussel's environment. We plan to attach gape sensors, microcontrollers, and radios to mussels and place them back in their natural environment. Small, inexpensive radios operating in the Industrial, Scientific and Medical (ISM) bands will provide the physical link of an underwater wireless sensor network (WSN). Despite the attenuation radio waves experience in water, the low cost of these radios should allow us to deploy enough to set up a reliable communications network. While commercially available radios can be used underwater with waterproofing, antennas designed for use in air are unsuitable for use in water, because of the different electromagnetic properties of water and air. We designed dipole, loop, and folded dipole antennas for use in water and attached these to transmitters. We measured the power transmitted by the antennas by immersing the transmitters in a tank of water and measuring the received power at different distances using a small dipole antenna attached to a spectrum analyzer. The distance between the antennas was precisely controlled with a motorized xy positioner.
Details
- Title: Subtitle
- Antennas for mussel-based underwater biological sensor networks in rivers
- Creators
- Kenneth Hunt - IIHR-Hydroscience and Engineering, Iowa City, IAJames Niemeier - IIHR-Hydroscience and Engineering, Iowa City, IAAnton Kruger - IIHR-Hydroscience and Engineering, Iowa City, IA
- Resource Type
- Conference proceeding
- Publication Details
- Proceedings of the Fifth ACM International Workshop on underwater networks, pp.1-4
- Series
- WUWNet '10
- DOI
- 10.1145/1868812.1868825
- Publisher
- ACM
- Language
- English
- Date published
- 09/30/2010
- Academic Unit
- Electrical and Computer Engineering; Civil and Environmental Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984197460002771
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