A vector triangle method for the measurement of inductance and capacitance

Author

Wang, Xiao-yang ; Liao, Qiang ; Ding, Xiao-ming ; Huang, Wei

Author_Institution

Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2011

fDate

21-23 Oct. 2011

Firstpage

378

Lastpage

381

Abstract

A vector triangle method for the measurement of the parameters of inductors, capacitors and resistors is described. The method can measure the values of the impedance, quality factor (Q factor) or dissipation factor (D factor) and is independent of the phase measurements, as it only involves the effective values of three voltages. The unknown impedance is connected in series with a known standard resistor and this series circuit is excited by a sinusoidal voltage. With the value of the known standard resistance and the absolute value of three voltages, namely, voltage applied, voltage across the standard resistance and the voltage across the unknown impedance, we can compute the value of the impedance and the Q or D factor of it by using the vector triangle relationship between the three voltages. The proposed scheme was implemented using a MSP430 microcontroller and tested.

Keywords

Q-factor; capacitance measurement; electric resistance measurement; inductance measurement; inductors; microcontrollers; phase measurement; resistors; voltage measurement; D factor; MSP430 microcontroller; Q factor; capacitance measurement; dissipation factor; impedance measurement; inductance measurement; inductor measurement; parameter measurement; phase measurement; quality factor; resistance measurement; resistor measurement; series circuit; sinusoidal voltage measurement; vector triangle method; vector triangle relationship; Capacitors; Frequency measurement; Impedance; Inductors; Resistors; Vectors; Voltage measurement; D factor; Q factor; capacitance; inductance; vector triangle;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Problem-Solving (ICCP), 2011 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4577-0602-8

Electronic_ISBN

978-1-4577-0601-1

Type

conf

DOI

10.1109/ICCPS.2011.6092234

Filename

6092234