Locating Ultrasonic Signals Employing MEMS-On-Fiber Sensors.

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ID: 20851
2019
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Abstract
Sound sensing finds wide applications in various fields, such as underwater detection, structural health monitoring, and medical diagnosis, to name just a few. Based on our previously developed MEMS-on-fiber sensors, showing the advantages of low cost, small volume, and high performance, a three-dimensional ultrasonic localization system employing four such sensors was established in this work. A time difference of arrival (TDOA) algorithm was utilized to analyze the acquired data and then calculate the accurate position of the ultrasonic signal source. Plenty of practical measurements were performed, and the derived localization deviation in the region of 2 m × 2 m × 1 m was about 2-5 mm. Outside this region, the deviation tended to increase due to the directional sensitivity existing in these sensors. As a result, for a more accurate localization requirement, more sensing probes are needed in order to depict a completely suitable application situation for MEMS technology.
Reference Key
si2019locatingsensors Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Si, Wenrong;Fu, Chenzhao;Li, Haoyong;Lv, Jiaming;Xiong, Chaoyu;Yuan, Peng;Yu, Yiting;
Journal sensors
Year 2019
DOI
E3696
URL
Keywords Keywords not found

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