Wireless Sensor Node for Surface Seawater Density Measurements
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ID: 111082
2012
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Abstract
An electronic meter to measure surface seawater density is presented. It is based on the measurement of the difference in displacements of a surface level probe and a weighted float, which according to Archimedes’ law depends on the density of the water. The displacements are simultaneously measured using a high-accuracy magnetostrictive sensor, to which a custom electronic board provides a wireless connection and power supply so that it can become part of a wireless sensor network. The electronics are designed so that different kinds of wireless networks can be used, by simply changing the wireless module and the relevant firmware of the microcontroller. Lastly, laboratory and at-sea tests are presented and discussed in order to highlight the functionality and the performance of a prototype of the wireless density meter node in a Bluetooth radio network. The experimental results show a good agreement of the values of the calculated density compared to reference hydrometer readings.
| Reference Key |
baronti2012sensorswireless
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|---|---|
| Authors | Federico Baronti;Gabriele Fantechi;Roberto Roncella;Roberto Saletti;Baronti, Federico;Fantechi, Gabriele;Roncella, Roberto;Saletti, Roberto; |
| Journal | sensors |
| Year | 2012 |
| DOI |
10.3390/s120302954
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| URL | |
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