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

fYear

2012

fDate

13-16 May 2012

Firstpage

528

Lastpage

532

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2012 IEEE International

Conference_Location

Graz

ISSN

1091-5281

Print_ISBN

978-1-4577-1773-4

Type

conf

DOI

10.1109/I2MTC.2012.6229216

Filename

6229216