Eddy current sensor based on small displacement measurementAbstractIn this paper， a single chip by AT89C51， acquisition displacement eddy current sensor circuit， ADC0832A / D conversion circuit， liquid crystal display circuit 1602 consisting of micro-eddy current displacement sensors measure the achievement of the The program could be applied to the measurement of static displacement， vibration displacement measurement， rotating machinery monitoring the shaft vibration Introduced in order to achieve the program's single-chip eddy current displacement measuring systemDisplacement eddy current sensor signal from the collection， collected by the shift circuit， the conversion from analog to digital ADC0832 volume， from single-chip microcomputer for the collection， in order to achieve micro-displacement between the two Displacement through the liquid crystal This system has easy-to-use， high accuracy displacement measurements and display the results of the advantages of Key words:Eddy current sensor; AT89C51 single-chip microcomputer; displacement measurement; 1602 LCD
