Title :
Impedance measurements of ferrite core displacement sensors for flywheel energy storage systems
Author :
Recheis, Manes ; Wegleiter, Hannes ; Schweighofer, Bernhard ; Fulmek, Paul
Author_Institution :
Inst. of Electr. Meas. & Meas. Signal Process., Graz Univ. of Technol., Graz, Austria
Abstract :
For active magnetically suspended rotors in flywheel energy storage systems (FESSs), an inexpensive, robust and reliable contactless displacement measurement is needed. This paper evaluates five different ferrite cores of different size and geometry for a possible use as a displacement sensor. The measurement method and procedure which was built to compare the different cores is described in details. Further the measurement results are discussed.
Keywords :
displacement measurement; electric impedance measurement; energy storage; ferrites; flywheels; rotors; active magnetically suspended rotors; displacement measurement; ferrite core displacement sensors; flywheel energy storage systems; impedance measurements; Current measurement; Ferrites; Frequency measurement; Magnetic cores; Sensitivity; Sensors; Voltage measurement; Displacement measurement; flywheel energy storage system; flywheels; inductive displacement sensor; magnetic sensor;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International
Conference_Location :
Graz
Print_ISBN :
978-1-4577-1773-4
DOI :
10.1109/I2MTC.2012.6229216
