Alignment and Position Sensors Based on Split Ring Resonators

Sensors

Jordi Naqui¹  Miguel Durán-Sindreu² 

[1] CIMITEC, Departament d'Enginyeria Electrònica, Universitat Autònoma de Barcelona, 08193 Bellaterra (Barcelona), Spain;

关键词: split ring resonators;    coplanar waveguide;    alignment sensors;    position sensors;   

DOI  :  10.3390/s120911790

来源: mdpi

【 摘 要 】

In this paper compact alignment and position sensors based on coplanar waveguide (CPW) transmission lines loaded with split ring resonators (SRRs) are proposed. The structure consists of a folded CPW loaded with two SRRs tuned at different frequencies to detect both the lack of alignment and the two-dimensional linear displacement magnitude. Two additional resonators (also tuned at different frequencies) are used to detect the displacement direction. The working principle for this type of sensor is explained in detail, and a prototype device to illustrate the potential of the approach has been designed and fabricated.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.