The innovative company for smart sensor and image processing technologies. Many patented product and system solutions are used in countless automated industries worldwide. Constant growth, outstanding products and excellent corporate governance qualify wenglor as a top employer in the SME sector.
From Lake Constance to All Over the World.
The innovative family business was founded in 1983 by Dieter Baur in Tettnang on Lake Constance in the German state of Baden-Württemberg. Under the leadership of his sons, Fabian and Rafael Baur, wenglor has grown into a global player in the fields of sensors and machine vision and has become an indispensable part of the world of automation.
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Prof. Dr.-Ing. Georg-Peter Ostermeyer, TU Braunschweig, GERMANY
Mr. Chengyuan Fang, Institute of Dynamics and Vibration of TU Braunschweig, GERMANY
Mr. Guido Lehne-Wandrey, Institute of Dynamics and Vibration of TU Braunschweig, GERMANY
Mr. Malte Sandgaard, Institute of Dynamics and Vibration of TU Braunschweig, GERMANY
Mr. Alexander Vogel, Institute of Dynamics and Vibration of TU Braunschweig, GERMANY
Mr. Jacek Kijanski, Institute of Dynamics and Vibration of TU Braunschweig, GERMANY
Mr. Thomas Hillner, wenglor sensoric GmbH, GERMANY
Mr. Fabian Repetz, wenglor sensoric GmbH, GERMANY
Friction tests under controlled conditions are crucial for the understanding of the boundary layer dynamics in technical brake systems. The dynamics of the friction interface characterize the braking performance. In order to evaluate and monitor the dynamics of the friction interface, detailed insights into the friction behavior is obtained by high precision tribotesters under laboratory conditions. Especially in the low sliding speed range, specialized machines such as the Variable Velocity Tribotester (VVT) make it possible to mimic real world phenomena under controlled conditions, e.g. creep groan or COF in low temperatures.
This paper presents the wenglor sensoric 3D sensor ShapeDrive MLAS201 for measuring the pad surface between friction applications at VVT. With this device, quasi in-situ measurements with high speed and precision of the pad’s surface are attained. The 3D sensor consists of a light engine which projects several patterns onto the pad surface and a high resolution camera which can record these patterns again. The topography and intensity information of the pad surface would be stored in a point cloud file with high precision of 12 megapixels. Such information can be used to analyze the surface properties such as roughness and height. With further algorithms it is also possible to observe the change of the entire topography and in further way to determine the wear volume and analyze the contact situations.
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