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Steve M. Taylor
04/21/06 12:29
Read: 667 times
State College
USA


 
#114701 - Weekend off topic and My homework
...fuel gauges in vehicles usually work by having a float on an arm in the tank, with a potentiometer driven by the arm. The resistance changes the current flowing in an ammeter circuit.

In a standard, rectangular tank, the volume is a linear function of depth.

In a DRUM like tank, on its side, the volume/depth function is co-sinusoidal.

Since any fool can linearise it with an 8052, I was wondering about using LINEAR electronics, whats the simplest way of linearising the transfer function ?
nominally.
O Ohms = full
500 Ohms = empty.


Steve

List of 22 messages in thread
TopicAuthorDate
Weekend off topic and My homework      Steve M. Taylor      04/21/06 12:29      
   one would imagine ...      Erik Malund      04/21/06 12:34      
   Simplest      J. Guy      04/21/06 13:54      
      a memory old enough to be carbon dated :      Erik Malund      04/21/06 14:11      
         near enough      Steve M. Taylor      04/21/06 14:17      
            Dang... He took all the fun out of it.      Jon Ledbetter      04/21/06 14:36      
               Not Quite      Neil Kurzman      04/21/06 19:55      
                  Oh yea, right      Steve M. Taylor      04/22/06 05:41      
   HUH      Erik Malund      04/21/06 14:48      
   Pure cosine?      Kai Klaas      04/22/06 07:43      
      Granted      Steve M. Taylor      04/22/06 10:16      
         Bending of curve      Kai Klaas      04/23/06 20:25      
            Good ideas      Steve M. Taylor      04/24/06 10:03      
               Yes, but only if totaly empty!      Kai Klaas      04/24/06 10:38      
                  LPG      Steve M. Taylor      04/24/06 12:09      
                     LPG      Terry Lingle      04/25/06 13:58      
               who gives a s... about precision      Erik Malund      04/24/06 11:01      
                  Inaccuracy      Steve M. Taylor      04/24/06 12:05      
                     I would imagine that designing something      Erik Malund      04/24/06 12:21      
                        Analogue      Steve M. Taylor      04/24/06 12:56      
                           Sketch!      Kai Klaas      04/25/06 11:15      
                              Arm      Steve M. Taylor      04/25/06 11:35      

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