Isolated temperature sensing for hems contacts

A method of detecting temperature of an electrical terminal comprising:

• applying a polymer matrix with a polymeric positive temperature coefficient material which contains a mixture of electrically conductive magnetic particles to a surface of the electrical terminal;
• exciting the electrically conductive magnetic particles with an AC magnetic field to cause eddy currents to flow within the electrically conductive magnetic particles;
• remotely sensing a change in the material with an electrically isolated circuit which is external to the electrical terminal to determine if the electrical terminal is operating at a safe temperature to optimize current flow across the electrical terminal.

A method of detecting temperature of an electrical terminal comprising:

• applying a material which contains a mixture of electrically conductive magnetic particles to a surface of the electrical terminal;
• exciting the electrically conductive magnetic particles with an AC magnetic field to cause eddy currents to flow within the electrically conductive magnetic particles;
• remotely sensing a change in the material with an electrically isolated circuit which is external to the electrical terminal to determine if the electrical terminal is operating at a safe temperature to optimize current flow across the electrical terminal.