TY - CONF A1 - Helmerich, Rosemarie A1 - Milmann, Boris A1 - Wöstmann, Jens T1 - Condition of CFRP-strengthening of concrete bridges years after aplication T2 - 31st DANUBIA-ADRIA Symposium on Advances in Experimental Mechanics CY - Kempten, Allgäu, Germany DA - 2014-09-24 PY - 2014 AN - OPUS4-33076 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Milmann, Boris A1 - Hong, S. T1 - Investigation of Reinforcement Corrosion using Automated Low-Frequency Ultrasonic Echo T2 - Danube Adria Symposium CY - Stary Smokovec, Slowakei DA - 2015-09-21 PY - 2015 AN - OPUS4-34449 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Moldenhauer, Laura A1 - Helmerich, Rosemarie A1 - Köppe, Enrico A1 - Haamkens, Frank A1 - Wittmann, Jochen T1 - Experimental feasibility study about moisture in building materials measured with bluetooth N2 - This feasibility study presents how the Received Signal Strength Indicator (RSSI) of a Bluetooth® Low Energy (BLE) signal, transmitted from the BLE-module embedded in building materials with changing moisture content, is damped. The BLE-module (TRANSMITTER) communicates with a mobile Smart Device as tablet or mobile phone (RECEIVER) [Fig. 1]. The measured RSSI indicates to what extend the received signal strength is changed due to moisture, while the transmitted signal strength remains constant. T2 - Danube Adria Symposium DAS2016 CY - Portoroz, Slovenia DA - 20.09.2016 KW - Bluetooth Low Energy KW - Moisture KW - Experimental study PY - 2016 AN - OPUS4-38522 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -