TY - GEN
T1 - An integrated temperature sensor network for satellite sandwich panels
AU - Rapp, Stephan
AU - Reutlinger, Arnd
AU - Zuknik, Karl Heinz
AU - Baier, Horst
PY - 2008
Y1 - 2008
N2 - Large telecommunication satellites are equipped with hundreds of sensors including strain sensors, accelerometers and especially temperature sensors for the measurement during testing, launch and operation. The huge amount of sensors is very expensive in terms of integration effort, harness complexity and weight. To reduce this negative impact on large telecommunication satellites the use of fiber optic sensors for the distributed sensing in satellites is investigated. Here we show the integration of a fiber optic sensor network into satellite sandwich panel structures for the purpose of hot spot detection. The developed sensor system enables temperature measurement without any disturbance by static or dynamic mechanical loads or electro-magnetic fields. The integration technique of the sensor system between the face-sheet and the honeycomb core has only negligible impact on the structural integrity of the panel. Ideally the very sensitive fiber optic temperature sensors lead to temperature resolutions of 0.01°K. First experiments showed the possibility to achieve resolutions in that range. However the designed sensors showed a slightly inert behavior. The simulation of a demonstrator panel with a sensor density of even only 9 sensors per square meter showed the possible reconstruction of the temperature field with an error of 6.9%.
AB - Large telecommunication satellites are equipped with hundreds of sensors including strain sensors, accelerometers and especially temperature sensors for the measurement during testing, launch and operation. The huge amount of sensors is very expensive in terms of integration effort, harness complexity and weight. To reduce this negative impact on large telecommunication satellites the use of fiber optic sensors for the distributed sensing in satellites is investigated. Here we show the integration of a fiber optic sensor network into satellite sandwich panel structures for the purpose of hot spot detection. The developed sensor system enables temperature measurement without any disturbance by static or dynamic mechanical loads or electro-magnetic fields. The integration technique of the sensor system between the face-sheet and the honeycomb core has only negligible impact on the structural integrity of the panel. Ideally the very sensitive fiber optic temperature sensors lead to temperature resolutions of 0.01°K. First experiments showed the possibility to achieve resolutions in that range. However the designed sensors showed a slightly inert behavior. The simulation of a demonstrator panel with a sensor density of even only 9 sensors per square meter showed the possible reconstruction of the temperature field with an error of 6.9%.
UR - http://www.scopus.com/inward/record.url?scp=77950462458&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77950462458
SN - 9781615671601
T3 - International Astronautical Federation - 59th International Astronautical Congress 2008, IAC 2008
SP - 5538
EP - 5548
BT - International Astronautical Federation - 59th International Astronautical Congress 2008, IAC 2008
T2 - 59th International Astronautical Congress 2008, IAC 2008
Y2 - 29 September 2008 through 3 October 2008
ER -