A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica
T. Wagner, S. Krotzky, A. Weiß, T. Sauerwald, C.-D. Kohl, J. Roggenbuck, M. Tiemann, Sensors (2011) 3135–3144.
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Wagner, Thorsten;
Krotzky, Sören;
Weiß, Alexander;
Sauerwald, Tilman;
Kohl, Claus-Dieter;
Roggenbuck, Jan;
Tiemann, MichaelLibreCat 
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Abstract
Capacitive sensors are the most commonly used devices for the detection of humidity because they are inexpensive and the detection mechanism is very specific for humidity. However, especially for industrial processes, there is a lack of dielectrics that are stable at high temperature (>200 °C) and under harsh conditions. We present a capacitive sensor based on mesoporous silica as the dielectric in a simple sensor design based on pressed silica pellets. Investigation of the structural stability of the porous silica under simulated operating conditions as well as the influence of the pellet production will be shown. Impedance measurements demonstrate the utility of the sensor at both low (90 °C) and high (up to 210 °C) operating temperatures.
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Sensors
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3135-3144
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Wagner T, Krotzky S, Weiß A, et al. A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica. Sensors. Published online 2011:3135-3144. doi:10.3390/s110303135
Wagner, T., Krotzky, S., Weiß, A., Sauerwald, T., Kohl, C.-D., Roggenbuck, J., & Tiemann, M. (2011). A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica. Sensors, 3135–3144. https://doi.org/10.3390/s110303135
@article{Wagner_Krotzky_Weiß_Sauerwald_Kohl_Roggenbuck_Tiemann_2011, title={A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica}, DOI={10.3390/s110303135}, journal={Sensors}, author={Wagner, Thorsten and Krotzky, Sören and Weiß, Alexander and Sauerwald, Tilman and Kohl, Claus-Dieter and Roggenbuck, Jan and Tiemann, Michael}, year={2011}, pages={3135–3144} }
Wagner, Thorsten, Sören Krotzky, Alexander Weiß, Tilman Sauerwald, Claus-Dieter Kohl, Jan Roggenbuck, and Michael Tiemann. “A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica.” Sensors, 2011, 3135–44. https://doi.org/10.3390/s110303135.
T. Wagner et al., “A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica,” Sensors, pp. 3135–3144, 2011, doi: 10.3390/s110303135.
Wagner, Thorsten, et al. “A High Temperature Capacitive Humidity Sensor Based on Mesoporous Silica.” Sensors, 2011, pp. 3135–44, doi:10.3390/s110303135.
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