| 摘要 |
FIELD: measurement equipment.SUBSTANCE: invention relates to a device and a method for microscanning of fingerprint image. The device made as capable of microscanning of a fingerprint image comprises: a fingerprint image sensor; the first and second driving elements; a unit comprising: a setting position, made as capable of holding the image sensor, the first and second setting areas for holding the first and second driving elements, a stiffening device, the unit is made as capable of moving the image sensor into different positions to capture the image, at the same time the stiffening device is made as capable of providing the resonant frequency of the unit; and a module to control the first and second driving elements by means of a control signal, having the selected working frequency, besides, the resonant frequency of the unit is higher than the chosen working frequency.EFFECT: getting a digital image of a fingerprint with high resolution at low setting time values of an assembly of a device with an image sensor.26 cl, 7 dwg |
