XPost: sci.electronics.equipment   
   From: jeroen@nospam.please   
      
   On 2020-06-20 17:58, Commander Kinsey wrote:   
   [...]   
   >   
   > Showing those extra two numbers is pointless if they're wrong.  All   
   > that matters is how many volts difference between the actual voltage   
   > and what is shown.   
      
   Engineers distinguish between accuracy, a measure of how close   
   a observed value is to the true value, and resolution, which   
   is a measure of the device's ability to resolve small changes.   
   Either specification is useful in its own right, and professional   
   instrumentation will always have both specs. So even if the   
   last digit or two of a measuring device are not accurate, they   
   may still be useful.   
      
   You may want to check audio ADCs and DACs for example, which   
   have atrocious accuracy, but excellent resolution. An example   
   of the opposite might be a voltage reference, which has excellent   
   accuracy, but no resolution at all.   
      
   Of course in general, there is a tendency of accurate instruments   
   to have a better resolution too.   
      
   Jeroen Belleman   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)