Title :
Contactless distance measurement method
Author :
Hoffmann, Karel ; Skvor, Zbynek
Author_Institution :
Fac. of Electr. Eng., Czech Tech. Univ. in Prague, Prague, Czech Republic
Abstract :
A new method capable of contactless distance measurement with high resolution has been proposed. The method is intended to measure distance differences smaller than one half of a wavelength. First experimental results are reported. The method is based on precise phase evaluation of signal reflected by the surface whose distance is measured. This is achieved using interference between the reflected and reference signals. Micrometer resolution at 10 GHz can be expected.
Keywords :
distance measurement; interference suppression; micrometry; microwave measurement; contactless distance measurement; interference; micrometer resolution; phase evaluation; signal reflection; Antenna measurements; Distance measurement; Frequency measurement; Magnetic field measurement; Microwave measurements; Microwave theory and techniques; Wavelength measurement; Distance measurement; Interferometers; Microwave measurements; Microwave sensors;
Conference_Titel :
Microwave Measurement Conference (ARFTG), 2011 77th ARFTG
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-61284-959-1
Electronic_ISBN :
978-1-61284-960-7
DOI :
10.1109/ARFTG77.2011.6034559
