Open AccessAn Ink-Jet Printed Capacitive Sensor for Angular Position/Velocity Measurements
Author(s) -
Damir Krklješ,
Goran Stojanović
Publication year - 2016
Publication title -
advances in electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 23
eISSN - 1844-7600
pISSN - 1582-7445
DOI - 10.4316/aece.2016.04012
Subject(s) - capacitive sensing , printed electronics , electronics , position (finance) , acoustics , angular velocity , 3d printed , angular displacement , inkwell , jet (fluid) , position sensor , electrical engineering , computer science , optics , materials science , engineering , physics , aerospace engineering , biomedical engineering , finance , economics , quantum mechanics , speech recognition
This paper presents the prototype of a capacitive angular position/velocity sensor which exploits the advantages of flexible/printed electronics. The sensor belongs to the incremental encoder type with two quadrature channels. Instead of the commonly used structure of planar capacitor, in this paper a cylindrical capacitor structure with digitated electrodes, for both the stator and the rotor, was implemented. The flexible printed electrodes are attached to the inner wall of the stator and to the perimeter of the rotor cylinder. The rotor has no external contacts; electrical connection is established with the stator only. The working principles of the sensor and the signal conditioning circuit were demonstrated through experimental results based on in-house developed mechanical and electronics platforms