Recent content by logic5

  1. L

    Capacitance calculus of a bearing

    Unfortunately I haven´t... what a pity! Anyway thank u for telling me it is not that simple.
  2. L

    Capacitance calculus of a bearing

    I would like to calculate theoretically the capacitance of a bearing with metallic rings and ceramic spheres (see http://en.wikipedia.org/wiki/Rolling-element_bearing. The expression for a cylindrical capacitor is: (2*pi*eps0*l)/(lnb/a). However, when adding some spherical balls inside the...
  3. L

    Graduate Dielectric material becomes conductive at High Frequency?

    Thank you for your feedbacks!
  4. L

    Graduate Dielectric material becomes conductive at High Frequency?

    I mean if it becomes conductive at AC. Simplifying, the question would be... is is possible to apply a low frequency signal to a dielectric material and not to be conductive, but when increasing the frequency to become conductive?
  5. L

    Graduate Dielectric material becomes conductive at High Frequency?

    Dear colleagues, I have a question related with dielectrics and their conductivity when High Frequency signals are applied. Is it possible to become conductive a dielectric material if sufficiently High Frequency signals are applied? When a high frequency signal is applied to a...