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Abstract: This article presents the methodological process to be followed in the design of signal conditioning circuits for optical sensors (position sensitive detector (PSD) or photodiodes), which ...

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A quadrature encoder uses two output channels offset in phase to detect both direction and position with greater precision.

Abstract: A highly sensitive humidity sensor based on open cavity fiber Fabry-Perot interferometer (FPI) with double-sided contact film is proposed. The sensor is fabricated by inserting a section of ...