DocumentCode
2277703
Title
Noncontact sensing of physical parameters by Q measurement
Author
Namjoshi, K.V. ; Biringer, P.P.
Author_Institution
Dept. of Electr. Eng., Toronto Unv., Ont., Canada
fYear
1990
fDate
7-12 Oct. 1990
Firstpage
1516
Abstract
Changes in the quality factor, Q, of a solenoid due to nearby nonmagnetic conducting objects are investigated. The influence of distance and supply frequency on the quality factor is calculated. The results are applied to estimate changes in parameters such as temperature and distance. The results show that changes in Q may be satisfactorily used to monitor physical properties of the workpiece, such as distance or temperature, without physical contacts.<>
Keywords
distance measurement; quality control; solenoids; temperature measurement; noncontact sensing; nonmagnetic conducting objects; physical parameters sensing; quality factor; quality measurement; solenoid; supply frequency; Conductivity; Conductors; Frequency; Maxwell equations; Q factor; Q measurement; Skin; Solenoids; Temperature measurement; Temperature sensors;
fLanguage
English
Publisher
ieee
Conference_Titel
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location
Seattle, WA, USA
Print_ISBN
0-87942-553-9
Type
conf
DOI
10.1109/IAS.1990.152386
Filename
152386
Link To Document