Title :
An experimental investigation of contact bounce in medium duty contacts
Author :
McBride, John W.
Author_Institution :
Dept. of Electr. & Mech., Southampton Univ., UK
Abstract :
An investigation of parameters influencing the dynamics of electrical contact bounce in the medium-duty range of current loading (1-30 A) is presented. A measurement system which offers an improvement in the monitoring of mechanism dynamics is described. The system is based on the measurement of small impact displacements using an infrared optical method. In addition, the measurement of impact forces is achieved using a piezoelectric film (PVDF). The results show the effect of current loading and the associated thermal softening on the impact and the separation characteristics occurring during contact bounce
Keywords :
displacement measurement; electrical contacts; impact (mechanical); infrared detectors; 1 to 30 A; PVDF; contact bounce; current loading; impact forces; infrared optical method; mechanism dynamics monitoring; medium duty contacts; piezoelectric film; separation characteristics; small impact displacements; thermal softening; Circuits; Contacts; Current supplies; Energy dissipation; Optical films; Softening; Surges; Tellurium; Thermal loading; Voltage;
Conference_Titel :
Electrical Contacts, 1990. Proceedings of the Thirty-Sixth IEEE Holm Conference on ... and the Fifteenth International Conference on Electrical Contacts
Conference_Location :
Montreal, Que.
DOI :
10.1109/HOLM.1990.112988
