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Joined 2 years ago
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Cake day: June 14th, 2023

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  • Yeah, I’m always a little skeptical about the ‘feel it’ claims. But computers don’t have to adapt to progressive wear; I’m sure you could configure the ABS/traction control to indicate that in dry conditions consistently slipping below say 0.3g (number pulled out of ass) of applied traction implies an excessively worn tire.

    Once you get below a certain level of performance, all the braking/steering assumptions involved in self driving start breaking down too.


  • Airliner engines are getting to ludicrous reliability numbers (the latest generation appears to be closing in on 10M hours between inflight shutdowns) largely through predictive maintenance performed far in advance. We’re well past ‘most pilots never see an engine failure’ and approaching ‘most airlines don’t see an engine failure’.

    And there are few locations more abusive to sensors than the hot section of a turbine engine.


  • And yet people can feel the difference between a worn tire and a new tire. Accelerometers and the torque feedback on the motor drives (both of which are already widespread in cars out of necessity for other equipment) can feel when the tires are on the edge of losing traction.

    One of the changes in automation over the last decade or two is a move away from having many specific ‘sensor for monitoring X’, towards interpreting a smaller number of better sensors in novel ways to provide the same data.




  • Also:

    Thin stamped construction is cheap, but can still be fitted with sleeving on the live (active and neutral) pins like UK & europlug, but not US plugs. This prevents objects or fingers getting to live pins on a partially inserted plug.

    Industry has agreed that leads exit either straight out, or down-and-right, so there is no conflict for horizontal or vertical sockets. Sockets are universally installed earth-down.

    Reasonably compact.