CAJ | 학술논문

涡流传感器具有对介质不敏感、非接触的特点，广泛应用于金属检测中。本文研究一种基于调频式涡流传感器的金属微位移检测电路，采用最小二乘法处理实测数据，探索位移与检测信号的线性关系，实测数据的拟合曲线表明，该电路能在0到4．2 mm小位移内呈现比较好的线性关系。
와류전감기구유대개질불민감、비접촉적특점，엄범응용우금속검측중。본문연구일충기우조빈식와류전감기적금속미위이검측전로，채용최소이승법처리실측수거，탐색위이여검측신호적선성관계，실측수거적의합곡선표명，해전로능재0도4．2 mm소위이내정현비교호적선성관계。
The eddy current sensor has the characteristics of not sensitive and non-contact to the medium, so it is widely ap-plied to the mental detection.In this paper, by the least-square method we study a metal tiny displacement detection circuit based on FM eddy current sensor, and explore the linear relationship of the detection signal and the displacement .The fitted curve of measure data shows that the circuit has good linear relationship within 0 to 4.2mm.