A coaxial thickness measuring device for full-width banknote based on hall effect
Yang weisong, Shukun Wang, song wei · Journal of Physics Conference Series · 2019
Abstract In this paper, a multi-channel banknote thickness measurement mechanism based on hall effect is designed to meet the demand of banknote identification for the cash circulation module of financial instruments. It uses coaxial type rocker mechanism to mechanical amplification of the thickness of the banknote, translates the magnetic steel with hall sensor location change into money thickness signal, and the signal is amplified, filtered and calibrated to form a banknote thickness image. Finally, the detection results of the whole paper currency are obtained through calculation, so as to realize the detection and identification of the whole paper currency tape, folding and partial damage.