DocumentCode
2137063
Title
An MMIC-Based Microwave Sensor for Accurate Clearance Measurements in Aircraft Engines
Author
Wenger, J. ; Noweck, M. ; Stotz, M. ; Leistner, D. ; Trummer, G.
Author_Institution
Daimler-Benz Research Center, D-89081 Ulm, Germany. Tel. +49-731-505 2071, Fax +49-731-505 4103, e-mail: j.wenger@dbag.ulm.daimlerbenz.com
Volume
2
fYear
1997
fDate
8-12 Sept. 1997
Firstpage
1122
Lastpage
1126
Abstract
A novel microwave sensor for accurate noncontacting clearance measurements in turbine engines has been designed, fabricated, and successfully tested. The sensor consists of a microwave resonant cavity probe, a MMIC based microwave module for signal generation and detection, and a signal conditioning and processing unit. To enable high temperature operation the probe is fabricated by using metal and ceramics, the operating frequency range is 22-24 GHz. The clearance measurement range is some millimeters, the achieved sensitivity and accuracy are very high.
Keywords
Aircraft propulsion; Engines; Microwave measurements; Microwave sensors; Probes; Resonance; Signal detection; Signal processing; Testing; Turbines;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 1997. 27th European
Conference_Location
Jerusalem, Israel
Type
conf
DOI
10.1109/EUMA.1997.337947
Filename
4138999
Link To Document