System design of double sheet detection with ultrasonic sensor
A double sheet detection system with ultrasonic sensors is designed for providing scanning equipments with rapid and accurate double sheet detections and it's suitable to different kinds of paper. It is composed of the circuit to transmitting ultrasonic wave, the circuit to process ultrasonic wave received and the determination circuit. The system can give an alarm signal to the scanning equipments when there is double sheet to avoid paper jam or leaky scanning. Thanks to the high speed and high accuracy, the scanning trouble and resource wastes can be reduced, thus improving greatly the automatic extend for the scanning equipments.
Research on New Double Sheet Detection Method in Printing Machine with Ultrasonic Sensor
This paper proposes a method which can solve the problem of double sheets or multiple sheets in feeding-up mechanism of printing machine using ultrasonic sensor. After analyzing physical properties of ultrasonic sensor, a monitoring equipment that consists of ultrasonic emitter, ultrasonic acceptor and voltage-magnified circuit, detecting circuit and alarming and executive circuit is designed. The system will give an alarm to the printing workers when there exists the problem of double sheet or multiple sheets in feeding-up mechanism and the executive circuit will control relay to make the feeding apparatus stopping working. The double sheet detection mechanism can reduce printing trouble and resources wastes because of its high veracity, which can improve great automatic extend for the printing machine in our country
The Wrath of Athena: Gods and Men in the Odyssey
Chapter 1 Foreword Chapter 2 Introduction to the Paperback Edition Chapter 3 Introduction Chapter 4 The Beginning of the Odyssey Chapter 5 Odysseus Chapter 6 Gods and Men Chapter 7 The Encounter of Odysseus and Athena Chapter 8 The Double Theodicy of the Odyssey Chapter 9 Appendix: Demodocus and Homer Chapter 10 Bibliography Chapter 11 Index of Sources Chapter 12 Index of Names and Subjects