A wireless inductive-capacitive (L-C) sensor for rotating component temperature monitoring


Share / Export Citation / Email / Print / Text size:

International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic


eISSN: 1178-5608



VOLUME 4 , ISSUE 2 (June 2011) > List of articles

A wireless inductive-capacitive (L-C) sensor for rotating component temperature monitoring

Rogie I. Rodriguez / Yi Jia

Keywords : Wireless, resonant inductive-capacitive (L-C) circuit, temperature sensor, rotating components.

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 4, Issue 2, Pages 325-337, DOI: https://doi.org/10.21307/ijssis-2017-442

License : (CC BY-NC-ND 4.0)

Received Date : 13-May-2011 / Accepted: 27-May-2011 / Published Online: 01-June-2011



Temperature monitoring is critical in almost every type of machinery and application, especially in rotating components such as jet turbines, engines, and power plants, etc. These components involve harsh environments and where the physical connections for monitoring systems are impossible. This paper presents a resonant inductive-capacitive (L-C) circuit based wireless temperature sensor suitable for working in these harsh environments to monitor the temperature of rotating components. Design and performance analysis of the wireless temperature sensor has been conducted and the sensor prototype was successfully fabricated and calibrated up to 200ºC with sensitivity of 30 kHz/ºC. As a result it is confirmed that temperature monitoring of a rotating component can be carried out without requiring physical connection, power supplies or active elements in the sensor circuit.

Content not available PDF Share



[1] Woodard, S., Wang, C., and Taylor, B., Wireless temperature sensing using temperature-sensitive dielectrics within responding electric fields of open-circuit Sensors having no electrical Connections, Meas. Sci. Technol. 21 (2010) 075201, May 2010.
[2] Surface Acoustic Wave Technology based Temperature Monitoring of Rotating Machine Components, Segenuity Sensor Engine Technology, [cited 2010 August 10] Available from: http://www.sengenuity.com/tech_ref/Using_Wireless_Temp_Sensor_for_Rotating_E quipment_Applications.pdf
[3] Birdsell, E.D., Park, J., and Allen, M.G., Wireless ceramic sensors operating in high temperature environments, 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Fort Lauderdale, FL, 2004.
[4] Harpster, T.J.; Hauvespre, S.; Dokmeci, M.R.; Najafi, K. A, 2002. Passive humidity monitoring system for in situ remote wireless testing of micropackages. J. Microelectromech. Syst.vol.11, 61-67.
[5] Wang Y, Jia Y, Chen Q and Yanyun Wang 2008 A passive wireless temperature sensor for harsh environment applications Sensors
[6] Fonseca, M., English, J., Von Arx, M., and Allen, M., Wireless micromachined ceramic pressure sensor for high-temperature applications J Microelectromechanical Systems Vol 11 No.4. August 2002.
[7] Hofmaier, R., Maher, G., and Shirn, G., PLZT- A dielectric for high-temperature application IEE, 1988.
[8] Waffenschmidt E, Philips Research. “Coupling Factor”. Wireless Power Consortium, [cited 2009 November 3] Available from:http://www.wirelesspowerconsortium.com/technology/coupling-factor.html