HANNOVER MESSE 2019, 01 - 05 April
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A serendipitous sensor system

A modular sensor system with an extended detection range.

Logo Karlsruher Institut für Technologie


Karlsruher Institut für Technologie

Exhibitor details
Exhibitor details
Logo A serendipitous sensor system

Product description

Robot technology has become established in many industry areas, such as production, logistics, agriculture or maintenance. The robots are equipped with sensors for particularly delicate manoeuvres in order to make the arms and grippers more sensitive. So far, the sensors used have usually been restricted to just one function: Either they detect movements by approaching an object or by touching in the form of pressure. Researchers at the KIT Institute for Anthropomatics and Robotics have developed a modular sensor system with an enhanced sense of feel and touch that combines both functions and can even detect using them simultaneously. An individual sensor module consists of just three layers: there is a large-surfaced bottom electrode, followed by an insulating intermediate layer consisting of a compressible material such as foam rubber. Several geometric, regularly arranged covering electrodes combine to form the upper layer. The number and form of the covering electrodes depend on the respective application. The control electronics, which can be installed spatially separated from the sensors, completes a sensor module or a module network system consisting of several modules. The covering electrodes can be combined in any way, enabling a compromise between locational resolution and range of the sensor. Whether and how objects are moving around the sensor system is detected via its capacitive coupling with the environment or the surrounding objects. If an object is approaching, the electric field surrounding the sensor will change. This change is evaluated as approximate information. In contrast, touching, which results in mechanical compression of the intermediate layer, is established as a change in capacity.Several sensor modules can be combined as a sensor surface. For example, robots can be equipped with modules ranging from small surfaces on grippers to a large-surface "robot skin".

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Hall 2, Stand B16

(Main stand)

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