Title :
Application of compensation techniques in a dsPIC based impedance measuring system
Author :
Santos, José ; Ramos, Pedro M.
Author_Institution :
Inst. de Telecomun., UTL, Lisbon, Portugal
Abstract :
A dsPIC (Digital Signal Peripheral Interface Controller) based impedance measuring system was developed and implemented. The system measures the impedance´s amplitude and phase at the desired frequency using a sine-fitting algorithm running on the dsPIC and the results are sent to a personal computer using an USB or RS-232 connection. The measurement results are also shown in an LCD included in the device. This paper describes the system and details the OPEN and SHORT compensation techniques used to correct the measurements obtained with the device.
Keywords :
computerised instrumentation; electric impedance measurement; liquid crystal displays; peripheral interfaces; signal processing equipment; LCD; compensation technique; digital signal peripheral interface controller; dsPIC; impedance amplitude; impedance measuring system; impedance phase; personal computer; sine fitting algorithm; Capacitors; Current measurement; Frequency estimation; Impedance; Impedance measurement; Resistors; OPEN and SHORT compensation; dsPIC; impedance measurement; sine-fitting;
Conference_Titel :
EUROCON - International Conference on Computer as a Tool (EUROCON), 2011 IEEE
Conference_Location :
Lisbon
Print_ISBN :
978-1-4244-7486-8
DOI :
10.1109/EUROCON.2011.5929316
