A brake actuator assembly includes a sensor mounted to a push rod which is in communication with a transceiver antenna. The sensor provides positional information of the push rod relative to the antenna. A clearance between a friction element and a rotating brake member is determined based on displacement of the push rod and known mechanical relationships within the brake actuator.

 
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> Rotary blood pump diagnostics and cardiac output controller

> Single or multi-mode cardiac activity data collection, processing and display obtained in a non-invasive manner
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