| 摘要 |
<p>A device for recognizing the shape of objects such as bottles (6), in particular in view of refunding deposit money, comprising means for supporting an object to be examined (6), a transmitter and a receiver (1) for directing a measurement beam towards the object (6) to be examined and receiving said beam (2) respectively, after having hit said object (6), means for mutually displacing the transmitters and/or receivers and the object (6), so as to scan said object (6) in the longitudinal direction, and means for processing the measurement signals supplied by the receiver, comprised one or more transmitters (1) for emitting a beam (2) of ultrasonic pulses towards a point near the axial plane of an object (6) to be examined, one or more receivers (1) for the pulses reflected against this object (6), means for moving the or each transmitter and receiver (1) or said object (6), parallel to the direction of the said object (6), and by processing means which are adapted to determine transit time differences between the transmitted and corresponding received pulses, and for deriving therefrom the distance of said object (6) in respect of the transmitter (1), as well as for comparing said distance with comparison values, and deriving therefrom the shape and dimensions of the examined object (6).</p> |
