Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...
Abstract: Acoustic vector sensors provide a measurement of both the scalar acoustic pressure as well as the acoustic particle velocity vector in the orthogonal Cartesian directions, allowing for ...
Abstract: Miniature and multiparameter integrated water quality sensors are essential for marine environmental protection, resource exploration, and fisheries exploitation. This work describes a ...
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