Sick Ag

Daniel Kietz

Kai Waslowski

Jürgen Bürger

Davorin Jaksic

Wolfram Runge

Günter Hirt

Christoph Märkle

Thomas Blumcke

Gerhard Alt

Guenter Hirt

Axel Hauptmann

Thomas Franz

Michael Burger

Michael Stingl

Armin Vogelbacher

A light grid () with a transmission unit () comprising a plurality of individual light transmitters () and a transmitter control () for activating the individual light transmitters (), and with a reception unit () comprising a plurality of individual light receivers () corresponding to the individual light transmitters () and comprising an evaluation unit () connected to the individual light receivers () is provided, wherein the evaluation unit () is configured to detect an interruption of a light beam () from an individual light transmitter () to a corresponding individual light receiver () and to be optically synchronized with the transmitter control () by means of the light beams (). The transmitter control () is configured to transmit a synchronization signal on multiple individual light transmitters () in parallel.

Light grid

An optoelectronic sensor () is provided with a plurality of light transmitters () and light receivers () that form between one another a field () of mutually parallel monitoring beams (), wherein beam shaping optics () are assigned to the light transmitters () and the light receivers (). The optics () comprise a geometry and arrangement leading to a mutual overlap of the optics () in a direction diagonal, in particular perpendicular, to the field ().

Optoelectronic sensor

The invention relates to a method of operating an optoelectronic sensor, in particular a light barrier, in which a light signal is sent by means of a light transmitter into a monitored region, and a light receiver designed to receive transmitted and reflected light signals delivers a reception signal, the amplitude of which is investigated for the presence of an object in the monitored region, with an article detection signal being transmitted if a recognition threshold is exceeded or fallen short of, characterized in that a plurality of switching threshold values are preset, with a switching signal being triggered when the received signal exceeds or falls short of these switching threshold values, in that the number of the switching signals which arise with respect to each switching threshold is found; and in that the recognition threshold value and the switching threshold values are set or adjusted in dependence on the numbers found.

Method for the operation of an optoelectronic sensor

An opto-electronic sensor for recognizing transparent articles, such as, for example, glass bodies, plastic bodies, or foils. The sensor includes at least one transmitter for transmitting light signals into a monitored region, at least one receiver for receiving the transmitted light signals, and at least one evaluation unit for the evaluation of the received signals. The transmitter is designed for the transmission of the light signals in the UV range. At least one reference transmitter is provided for the transmission of light signals into the monitored region. The light signals transmitted by the reference transmitter lie in a different frequency range from the light signals transmitted by the transmitter.

Opto-electronic sensor

The invention relates to a method of operating an opto-electronic sensor, in particular a light barrier, in which a light signal is transmitted by means of a light transmitter into a monitored region and a light receiver designed to receive transmitted and reflected light signals delivers a signal, the amplitude of which is investigated for the presence of an object in the monitored region, wherein an object detection signal is transmitted when an amplitude threshold value is exceeded or fallen short of, wherein, before taking the sensor into operation, the threshold is automatically set in dependence on amplitude values which occur in a predetermined measurement time interval in the context of an initialization process with an object-free monitored region, and is thereby adapted to the operating conditions which exist during the initialization process, or wherein the threshold value is automatically adjusted during the sensor operation in dependence on amplitude values which have occurred in a specific measurement time interval and are thereby adapted to the respectively prevailing operating conditions.

Method for the operation of an opto-electronic sensor

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Riegel, Germany

Daniel Kietz