Learn the key physics definitions of position, displacement, velocity, and acceleration explained clearly and simply. This quick breakdown helps build a strong foundation for understanding motion in ...

Abstract: A displacement sensor with subnanometer resolution based on the fiber-optic Fabry–Perot interferometer is proposed. The Fabry–Perot cavity is formed between the fiber end face and a high ...

Abstract: In this paper, a displacement sensor based on an open-ended step-impedance transmission line is reported. The sensor operates in reflection, and the output variable is the phase of the ...

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