Title :
Wireless IDT ice sensor
Author :
Jose, K.A. ; Sunil, G. ; Varadan, V.K. ; Varadan, V.V.
Author_Institution :
Center for the Eng. of Electron. & Acoust. Mater. & Devices, Pennsylvania State Univ., University Park, PA, USA
Abstract :
This paper presents the design and performance evaluation of a Wireless IDT Ice Sensor for sensing the phase change from water to ice and hence to detect and monitor the ice formation at a remote location. The sensor is based on the principle of shear horizontal waves and its un-damped nature in the presence of a liquid. The frequency shift due to the phase change of water to ice is measured wirelessly and it is observed that, the sensor has potential applications for ice detection in airplane wings.
Keywords :
chemical sensors; ice; interdigital transducers; remote sensing; surface acoustic wave sensors; H/sub 2/O; SAW device; airplane wing; frequency shift; ice formation; remote location; shear horizontal wave; water-ice phase transformation; wireless IDT ice sensor; Acoustic propagation; Acoustic sensors; Acoustic signal detection; Acoustic waves; Aircraft; Ice; Surface acoustic wave devices; Surface acoustic waves; Temperature sensors; Wireless sensor networks;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011706
