摘要:
A method of manufacturing an optoelectronic sensor (10) is provided that has a reception unit (22) having a reception optics (24), a light receiver (28), and a diaphragm (26) therebetween, wherein the diaphragm (26) is arranged in a focal plane of the reception optics (24) so that a received light beam (20) generated by the reception optics is incident through the diaphragm aperture (42) of the diaphragm (26) at the point of smallest constriction. The diaphragm (26) is manufactured as an individual diaphragm using the reception optics (24).
摘要:
A distance-measuring optoelectronic sensor (10) for detecting and determining a distance of an object (16) in a monitoring area (14), the sensor (10) having a light transmitter (12) for transmitting a transmission signal, a light receiver (18) for generating a reception signal and a control and evaluation unit (24) configured to determine a light time of flight from the reception signal and, from that, the distance of the object (16), wherein the control and evaluation unit (24) is further configured to transmit at least one periodically modulated pulse as a transmission signal, to determine a reception time of the pulse in the reception signal and a phase offset of the modulation between transmission signal and reception signal in a neighborhood of the reception time and to determine the distance of the object (16) from the reception time and the phase offset.
摘要:
A light receiver (22) is provided having a plurality of avalanche photodiode elements (24) that can each be biased above a breakdown voltage by a bias voltage and can thus be operated in a Geiger mode, wherein the avalanche photodiode elements (24) form a plurality of groups, and having a control unit (30) to change the sensitivity of the avalanche photodiode elements (24) of a respective group. In this respect, the control unit (30) is configured to respectively change the sensitivity of the avalanche photodiode elements (24) of a group at at least one point in time assigned to the group, with different points in time being assigned to the groups.
摘要:
A light receiver (22) comprisinga plurality of avalanche photodiode elements (24), a first terminal (40) and a second terminal (42) for supplying a bias voltage so that the avalanche photodiode elements (24) are biased with a bias voltage above a breakdown voltage and thus operated in a Geiger mode, at least one temperature measuring element (44) for measuring an operating temperature of the avalanche photodiode elements (24) and a voltage compensation unit (46) for adapting the bias voltage to the operating temperature.
摘要:
A sensor (10) for determining a distance of an object (18), the sensor (10) transmitting a plurality of transmission pulses via a transmitter (12), accumulating reflected reception pulses (102) in a histogram (110), and determining therefrom a time of flight to the object (18). The sensor (10) has a control (24) for processing and outputting measurement values. Measuring unit (22) and control (24) are mutually connected to pass measurement values and to set a timing for the control (24) via a clocked synchronizing signal in that the control (24) executes a control cycle each time when receiving the synchronizing signal. An output rate of measurement values is programmable by the measuring unit (22) setting a smallest base clock and passing an updated measurement value to the control (24) after a multiple of the base clock corresponding to the programmed output rate.