CPC H01R 39/58 (2013.01) [G01B 21/22 (2013.01); H01R 39/26 (2013.01); H01R 39/38 (2013.01); H02K 11/20 (2016.01)] | 20 Claims |
1. A system for monitoring the wear state of a carbon brush of a brush holder assembly in an electrical device, comprising:
a wear state monitor positionable within a coiled portion of a spring of the brush holder assembly, the wear state monitor including:
a cylindrical housing;
a sensor disposed within the housing of the wear state monitor; and
a power source disposed within the housing of the wear state monitor;
wherein the sensor is configured to measure an angular displacement of the wear state monitor as the wear state monitor rotates;
wherein the measured angular displacement of the wear state monitor correlates to a diminution in length of the carbon brush during use.
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