Title :
Contactless Liquid Level Sensing using Wave Damping Phenomena in Free-Space
Author :
Pelczar, C. ; Meiners, M. ; Gould, D. ; Lang, W. ; Benecke, W.
Author_Institution :
ETRI Telematics & USN Res. Div., Daejeon
Abstract :
This paper presents a unique approach for contactless liquid level measurement via the free-space electromagnetic damping phenomenon. By measuring the attenuation and phase shift of a wave reflected from the liquid surface, the liquid level in the tank can be determined. This research project has been undertaken because of a rising demand in the automotive industry for low-cost contactless level detection of fluids in the engine compartment.
Keywords :
damping; level measurement; contactless liquid level sensing; free-space electromagnetic damping phenomenon; wave damping phenomena; Attenuation; Damping; Dipole antennas; Electromagnetic measurements; Electromagnetic scattering; Level measurement; Phase measurement; Reflector antennas; Surface waves; Ultrasonic variables measurement; High-Frequency Technique; Level Sensing; Wireless Measurement;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference, 2007. TRANSDUCERS 2007. International
Conference_Location :
Lyon
Print_ISBN :
1-4244-0842-3
Electronic_ISBN :
1-4244-0842-3
DOI :
10.1109/SENSOR.2007.4300642
