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磁信号是人民币重要的机读特征,研究基于磁信号检测的人民币鉴别与面值识别技术具有重要意义。隧道磁电阻(TMR)传感器是一种灵敏度高、温度特性好、输出信号强的新型磁阻传感器,非常适用于检测人民币的磁信号。本文利用TMR金融磁头检测纸币磁信号,并设计了基于磁信号检测的人民币面值识别技术研究方案,具有广阔的应用前景。
Magnetic signal is an important machine-readable feature of the RMB. It is of great significance to study RMB identification and face value recognition based on magnetic signal detection. Tunneling magnetoresistance (TMR) sensor is a new type of magnetoresistive sensor with high sensitivity, good temperature characteristics and strong output signal, which is very suitable for detecting the magnetic signal of RMB. In this paper, magnetic heads of TMR are used to detect the magnetic signals of paper currency, and the research program of face value recognition based on magnetic signal detection is designed, which has a broad application prospect.