Abstract: A 3D sensor for monitoring a monitored zone is provided, wherein the 3D sensor has at least one light receiver for generating a received signal from received light from the monitored zone and has a control and evaluation unit that is configured to detect objects in the monitored zone by evaluating the received signal and to determine the shortest distance of the detected objects from at least one reference volume, and to read at least one distance calculated in advance from the reference value from a memory for the determination of the respective shortest distance of a detected object.

Abstract: A method of transmitting image data in a safety sensor or in a safety system is provided, in which transmission errors are recognized in that meta information is added to the image data prior to the transmission and the meta information is checked after the transmission. The image data are here transmitted by an unsafe communication link, in particular a black channel, the meta information is prepended and/or appended to the image data and/or to the partial packets, and the meta information comprises a piece of information on the structure of the image data.

Abstract: An optoelectronic sensor for detecting objects in a monitored zone is provided having at least one light receiver for generating measurement data from received light from the monitored zone and having a safe evaluation unit that has at least two processing channels for a redundant processing of the measurement data and having a comparison unit for comparing processing results of the processing channels to uncover errors in a processing channel 30a-b. The processing channels are here each configured for a determination of a signature with respect to their processing results; and the comparator unit is configured for a comparison of the signatures.

Abstract: A seismic sensor assembly includes a sensor body; cable connectors operatively coupled to the sensor body; and a grounding clamp operatively coupled to the cable connectors. A lightning strike kit for a seismic sensor assembly can include the grounding clamp as an electrically conductive component for electrical coupling to a base and/or a spike of a seismic sensor assembly.

Abstract: A metal/ceramic substrate made up of a multilayer, plate-shaped ceramic material and at least one metallization provided on a surface side of the ceramic material. The at least one metallization is bonded to the ceramic material by direct copper bonding or reactive brazing and the ceramic material is made of a base layer made of silicon nitride ceramic. The at least one metallization is formed from at least one intermediate layer of an oxidic ceramic applied to the at least one base layer.