Abstract:
A distance measuring optoelectronic sensor for detecting a target object in a monitored zone is provided that has a light transmitter for transmitting light pulses, a deflection unit for a periodic scanning of the monitored zone by the light pulses, a light receiver for generating a received signal from the light pulses reflected or remitted by objects in the monitored zone, and a control and evaluation unit that is configured to determine the distance of an object from a time of flight of a light pulse and to transmit light pulses of different intensity, For the detection of a target object having a specific reflection capability, the control and evaluation unit is here furthermore configured to transmit light pulses adapted to the reflection capability and to a range and to vary the light pulses in accordance with different ranges for the distinction between the target object and another object.
Abstract:
An optoelectronic sensor (10) for detecting and determining the distance of objects in a monitoring region (16), the sensor (10) having a light transmitter (12) for transmitting a transmission light beam (18) with a modulated pulse sequence coding, a light receiver (24) for generating a reception signal from the remitted light beam (20) remitted by objects in the monitoring region (16), and a control and evaluation unit (26) which is configured to determine a light time of flight based on the reception signal and the associated pulse sequence coding and, therefrom, a distance value, wherein the light transmitter (12) is configured to simultaneously transmit a plurality of transmission light beams (18) with a modulated pulse sequence coding for scanning a plurality of measuring points (28), and wherein the light receiver (24) comprises a plurality of light receiving elements for generating a plurality of reception signals from a plurality of remitted light beams (20).
Abstract:
The invention relates to an apparatus for the transmission of data and energy between two objects moving relative to one another about a common axis of rotation. The objects each comprise coils which are disposed opposite and are spaced apart axially with respect to the axis of rotation such that an energy transmission between the coils is possible by inductive coupling. A respective electrode carrier having a respective electrical conductor is provided coaxially to and rotationally fixed with respect to the respective coils, wherein the electrode carriers are disposed opposite and spaced apart axially and the electrical conductors are arranged such that a data transmission between the electrical conductors is possible by electrical coupling. The electrical conductors are circular or part-circular and are concentric to the axis of rotation of the relative movement. In addition, the respective coil windings and electrical conductors are arranged concentric to one another. The respective coil carriers and electrode carriers are formed in one piece and as a respective circuit board. A respective arrangement of conductive material for shielding is provided between the first coil and the electrical conductor coaxial thereto and/or between the second coil and the electrical conductor coaxial thereto. The arrangement for the electrical shielding comprises bores in the circuit board in the radial region between the coil and the electrical conductor in which bores conductive material is located. The invention furthermore relates to a laser scanner having such a transmission apparatus in accordance with the invention.