Magnetic Pattern Recognition Sensors FAQ


Is it possible for the sensors to recognize ○ as a circle?

If a circle is printed with magnetic ink, the sensors convert the shape of the circle into an electrical signal. The difference in electrical signals between circle and square patterns is as follows:

electrical signal

When circle, square, and stripe patterns are scanned, the sensor outputs the following signals.


The circle pattern is differentiated from the square pattern by the output level, and the circle pattern is differentiated from the stripe pattern by the number of peaks and output level.

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