How much do you know about the principle of counterfeit detector
category：Technical Support Time：2020-04-26
How much do you know about the principle of counterfeit detector
Discrimination is to distinguish between true and false by detecting the inherent characteristics of RMB. Banknote counters are electromechanical integration products that involve knowledge in many fields such as machinery, electricity, optics, and magnetism, and all aspects need to cooperate with each other.
1. Infrared image analysis and identification technology: use infrared light source to analyze the infrared image generated by the banknote under infrared light irradiation. Under the infrared, the part of the hall and the security line and number are displayed, and the other positions are basically white. Counterfeit currency is basically absent or vague
2. Ultraviolet image analysis and identification technology: Adopt violet LED light source to reflect CIS image sensor, and scan / imaging / collect / analyze / process paper money ticket width at 200DPI to realize authenticity identification of paper money fluorescent ink image features.
3. Fluorescence characteristic analysis and identification technology: detect the paper quality of RMB. RMB is made of special paper (including high-quality cotton of more than 85). Counterfeit banknotes are usually made of bleached ordinary paper. The bleached paper will have a fluorescent reaction under the irradiation of ultraviolet light (blue light with a wavelength of 365nm) (Under the excitation of ultraviolet rays, the blue light with a wavelength of 420-460nm is diffracted), RMB has no fluorescence reaction. Therefore, irradiating moving banknotes with an ultraviolet light source and simultaneously detecting the fluorescence reflection of the banknotes with silicon photocells can distinguish the authenticity of the banknotes. In order to eliminate the interference of ambient light on discrimination, a set of color filters with a transmission wavelength consistent with the fluorescence reaction wavelength of counterfeit banknotes must be installed on the surface of the silicon photovoltaic cell.
4. Magnetic analysis and identification technology of security line characteristics: read the security line characteristics and codes of banknotes, and also read the security line waveform signals of various denominations. Different denominations have different security line magnetic waveform signals.
Discrimination is to distinguish between true and false by detecting the inherent characteristics of RMB. Banknote counters are electromechanical integration products that involve knowledge in many fields such as machinery, electricity, optics, and magnetism, and all aspects need to cooperate with each other.
1. Infrared image analysis and identification technology: use infrared light source to analyze the infrared image generated by the banknote under infrared light irradiation. Under the infrared, the part of the hall and the security line and number are displayed, and the other positions are basically white. Counterfeit currency is basically absent or vague
2. Ultraviolet image analysis and identification technology: Adopt violet LED light source to reflect CIS image sensor, and scan / imaging / collect / analyze / process paper money ticket width at 200DPI to realize authenticity identification of paper money fluorescent ink image features.
3. Fluorescence characteristic analysis and identification technology: detect the paper quality of RMB. RMB is made of special paper (including high-quality cotton of more than 85). Counterfeit banknotes are usually made of bleached ordinary paper. The bleached paper will have a fluorescent reaction under the irradiation of ultraviolet light (blue light with a wavelength of 365nm) (Under the excitation of ultraviolet rays, the blue light with a wavelength of 420-460nm is diffracted), RMB has no fluorescence reaction. Therefore, irradiating moving banknotes with an ultraviolet light source and simultaneously detecting the fluorescence reflection of the banknotes with silicon photocells can distinguish the authenticity of the banknotes. In order to eliminate the interference of ambient light on discrimination, a set of color filters with a transmission wavelength consistent with the fluorescence reaction wavelength of counterfeit banknotes must be installed on the surface of the silicon photovoltaic cell.
4. Magnetic analysis and identification technology of security line characteristics: read the security line characteristics and codes of banknotes, and also read the security line waveform signals of various denominations. Different denominations have different security line magnetic waveform signals.
