ELECTRICAL MEASUREMENT OF WRITING PRESSURE AND APPLICATION TO CERTIFICATION

Yukie Omori, Hiromoto Takagi, Takahiro Arita, Susumu Sakano

Abstract

The piezoelectric element is constructed in the ball-point pen in respect of measuring the strength and weakness of the writing pressure of the handwritten characters such as the signatures. The writing pressure can be detected using the phase shift method. The maximum entropy method is used for the time series data of the writing pressure and the frequency spectrum is obtained. The discrimination between the true signatures and the false signatures is got using the frequency spectrum and the MTS (Mahalanobis-Taguchi-System) method.

Keywords

Measurement, Sensor, Piezoelectric-Element, Information Processing and Signal Analysis, Pattern Recognition

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IMEKO-TC4-2002-208.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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