Title :
An experimental investigation of contact bounce in medium duty contacts
Author :
McBride, John W.
Author_Institution :
Dept. of Electr. & Mech. Eng., Southampton Univ., UK
fDate :
6/1/1991 12:00:00 AM
Abstract :
An investigation of the parameters influencing the dynamics of electrical contact bounce under medium current loading (1-30 A) was carried out. A new measurement system which offers an improvement in the monitoring of mechanism dynamics is presented. The system is based on the measurement of small impact displacements using an infrared optical method. In addition, the measurement of impact forces has been 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 :
electrical contacts; impact testing; 1 to 30 A; contact bounce; impact forces; infrared optical method; mechanism dynamics; medium current loading; medium duty contacts; small impact displacements; thermal softening; Circuits; Contacts; Current measurement; Displacement measurement; Electric variables measurement; Energy dissipation; Monitoring; Optical films; Surges; Voltage;
Journal_Title :
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
