Material determination system and method

Details Material determination system and method Material determination system and method

2007-03-20

2007-03-20

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

C073S159000, C073S597000

Reexamination Certificate

active

10916210

ABSTRACT:
A structure including an ultrasonic transducer, a material database, and a material determination section. The ultrasonic transducer transmits ultrasound signals of a plurality of frequencies toward a printing paper over a frequency band covering 40 kHz to 100 kHz or more, and receives reflection signals. The material database stores information representing a reception signal on a material basis. The material determination section makes a material determination for the printing paper based on the information stored in the material database, and the signal (signal derived by amplifying a signal) received by the ultrasonic transducer.

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Yuusuke Moritake and Hiroomi Hikawa, “Hardware Material Recognition System Using Combinatorial Logic Circuit and Ultrasonic Sensor”, Department of Computer Science and Intelligent Systems, Oita University, vol. J85-A, No. 5, May 2002, pp. 610-614.

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