Marking or scanning apparatus with a measuring device for measuring the speed of an object and a method of measuring the speed of an object with such a marking or scanning apparatus

摘要

Apparatus for marking and/or scanning (m/s) an object comprising a m/s head (20) having a plurality of receiving spaces (24) for m/s devices (40), a driving mechanism for moving the object, a measuring device (50) for measuring the object speed comprising a transmitter having a transmitting fibre (56) for transmitting light to the object, a receiver having first and second light receiving fibres (57, 58) for receiving light reflected from the object forming light signals, and processor means (70) for determining a time shift between the light signals to provide a speed value of the object, all the fibres are arranged in a common first ferrule (52), the m/s devices include second ferrules, the first and second ferrules have corresponding connector sections and are variably connected to the receiving spaces of the scanning head, and the speed measuring device is arranged in one of the receiving spaces. The invention further relates to a method for measuring the object speed with the m/s apparatus.

主权项

1. An apparatus for at least one of marking and scanning an object, comprising:
a head for at least one of marking and scanning, having a plurality of receiving spaces for individual devices for at least one of marking and scanning, and a driving mechanism for providing a relative movement of the object relative to the head for at least one of marking and scanning, in an advance direction during a marking or scanning operation,wherein
a measuring device for measuring the speed of the object is provided, the measuring device comprising:
a transmitter having a transmitting fibre for transmitting a light to the object,a receiver having a first receiving fibre and a second receiving fibre for receiving light reflected from the object, wherein the reflected light received by the first receiving fibre forms a first light signal and the reflected light received by the second receiving fibre forms a second light signal, anda sensor and signal processor means for detecting the first and second light signals, for determining a time shift between the first light signal and the second light signal and for converting the determined time shift to a speed value of the object, the transmitting fibre, the first receiving fibre and the second receiving fibre are arranged in a common first ferrule, the devices for at least one of marking and scanning include second ferrules, the first and second ferrules have corresponding connector sections and are variably connected to the receiving spaces of the head for at least one of marking and scanning, and the measuring device is arranged in at least one of the receiving spaces of the head for at least one of marking and scanning for measuring the speed of the object in the advance direction.