Freitag, 18. Oktober 2013, 15:15 - 16:45 iCal

Robust Material Systems for Pressure Sensors

Gastvortrag von Univ.-Prof. Dr. Ulrich Schmid (Technische Universität Wien)

Universität Wien, Seminarraum 2124 der Fakultät für Chemie, 1. Stock
Währinger Straße 42, 1090 Wien

Seminar, Workshop, Kurs

In many technical applications pressure sensors are utilized for monitoring and feedback control. Especially in combustion processes with a high power density combustion instabilities can lead to pulsations, which could cause a total failure of the system. Required pressure sensors need capability of working in a temperature range above 600°C to provide reliable measurements of static and dynamic pressure. In addition to the high temperature stability a reasonable chemical stability is required.

In this talk conceptual considerations on the potential of sensors in high temperature applications are performed based on state of the art sensors. Electrical insulating and conducting thin films are evaluated regarding their potential in high temperature pressure sensors applications. Promising candidates are investigated by means of electrical, morphological and chemical methods regarding the influence of temperature and gas atmosphere on their properties.

A high temperature measurement setup to determine the gauge factor of electrical conducting thin films has been realized. Based on the evaluations of thin films a first sensor prototype based on sapphire is fabricated and evaluated.


Institut für Physikalische Chemie, Universität Wien


Univ.-Prof. Dr. Wolfgang Kautek
Universität Wien
Institut für Physikalische Chemie
01 4277 52470