Wavelet energy-based testing using supply current measurements

Author

Dimopoulos, M.G. ; Spyronasios, A.D. ; Papakostas, D.K. ; Hatzopoulos, A.A.

Author_Institution

Dept. of Electron., Alexander Technol. Educ. Inst. of Thessaloniki, Thessaloniki, Greece

Volume

4

Issue

2

fYear

2010

fDate

3/1/2010 12:00:00 AM

Firstpage

76

Lastpage

85

Abstract

In this study a test method based on wavelet energy of the supply current measurements is presented. The method has been utilised by a microcontroller-based versatile test system which is used for the production line testing of emergency luminaire products. The presented method is simple, offers a single-point test measurement solution and may easily be adapted to test various other analogue and mixed-signal systems. Fault detectability comparative experimental results between the wavelet energy and the root mean square (RMS) plus spectrum component values of the supply current measurements are presented showing the effectiveness of the proposed test method.

Keywords

electric current measurement; electrical products; emergency lighting; fault diagnosis; microcontrollers; power supply circuits; production testing; wavelet transforms; analogue-mixed-signal systems; emergency luminaire products; fault detectability; microcontroller-based versatile test system; production line testing; root mean square; single-point test measurement solution; supply current measurements; wavelet energy-based testing;

fLanguage

English

Journal_Title

Science, Measurement & Technology, IET

Publisher

iet

ISSN

1751-8822

Type

jour

DOI

10.1049/iet-smt.2009.0037

Filename

5419944