CPC G01K 7/023 (2013.01) [B60L 53/16 (2019.02); B60L 53/302 (2019.02); G01K 5/52 (2013.01); G01K 7/16 (2013.01); G01K 11/12 (2013.01); B60L 53/62 (2019.02); C09D 11/50 (2013.01); G01K 7/36 (2013.01); G09F 3/0294 (2013.01); H01R 13/6683 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7072 (2013.01); Y02T 90/12 (2013.01); Y02T 90/14 (2013.01)] | 20 Claims |
1. A method of detecting temperature of an electrical terminal comprising:
applying a material patch to a surface of the electrical terminal, the material patch containing a polymer matrix with a polymeric positive temperature coefficient material which contains a mixture of electrically conductive magnetic particles, whereby the material patch does not appreciably increase the electrical resistance or thermal capacitance 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 patch 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.
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