Title :
RF sensor for online determination of granular dielectric materials weight
Author :
Ming Huang ; Jingjing Yang ; Jun Sun ; Jun Chang ; Jinhui Peng
Author_Institution :
Sch. of Inf. Sci. & Eng., Yunnan Univ., Kunming
Abstract :
We have developed an electromagnetic cavity resonator based RF sensor for online determination of granular dielectric materials weight. This sensor is non-instrusive and detects the density of the granular materials using resonant peaks captured instantaneously. A laboratory prototype of the RF sensor has been constructed. The properties of the RF cavity were simulated by ANSYS, and confirmed using a vector network analyzer. Standard deviation of weighing errors of the RF sensor with horizontal belt for Tobacco shred, cabo and dry straw is less than 0.5%, 1.5 % and 2%, respectively.
Keywords :
cavity resonators; dielectric materials; network analysers; sensors; weighing; ANSYS; RF cavity; RF sensor; electromagnetic cavity resonator; granular dielectric materials weight; vector network analyzer; Belts; Chemical industry; Construction industry; Dielectric materials; Electromagnetic waveguides; Food industry; Inorganic materials; Radio frequency; Resonant frequency; Solids;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608297
