초록

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Abstract ▼ AI-Helper

A LVDT is an electromechanical transducer that produces an electrical output proportional to the displacement of separate movable core. A convential LVDT in construction has a disadvantage which the measurement range to the length ratio is small. This paper proposed a new type LVDT, which improved m...

A LVDT is an electromechanical transducer that produces an electrical output proportional to the displacement of separate movable core. A convential LVDT in construction has a disadvantage which the measurement range to the length ratio is small. This paper proposed a new type LVDT, which improved methodes of construction. The proposed LVDT and a conventional LVDT with the same dimension are simulated by FEM. In the process of the simulation and construction, the performance of two type LVDTs are evaluated. Linearity error of a conventional LVDT was ${\pm}3\;%$ in measuring range of ${\pm}5\;mm$ and linearity error of the proposed LVDT was ${\pm}0.5\;%$ in the same range. It was evident from the theoritical relationships and the experimental results that the proposed LVDT has been better performance than a convential type.