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Terry Lingle
11/26/05 06:34
Read: 607 times

#104198 - Lack of details
Responding to: Srinivasa Rao Samineni's previous message
make it impossible to do more than guess at this but obviously the sensor is reading either a vibration signal or variations in the belt tension as it operates.
My approach would be:

Determine where the error comes from (vibration, sensor mounting position, ect).
Correct the mechanical causes to minimize the error signals
Tare out the natural input to the sensor that is the real weight of the conveyor. (Zero the scale with the machine stopped)
Average the input signals over sufficient time that the empty belt just gives a steady 0 on the output.

The above steps will give you the best response time for this undefined system. If the response time is too long the basic engineering behind this probably needs to be changed to improve the resonse time.
More details would be nice as they would lead to approaches that are governed by the posted data.

Good luck Terry

List of 13 messages in thread
about weigh feeder      Srinivasa Rao Samineni      11/26/05 01:45      
   Lack of details      Terry Lingle      11/26/05 06:34      
      "Cleverer"      Steve M. Taylor      11/27/05 07:39      
         Yes that would improve response time      Terry Lingle      11/27/05 08:24      
            so would I      Steve M. Taylor      11/27/05 10:24      
   weigh feeder details      Srinivasa Rao Samineni      12/01/05 04:57      
      Could it be induced noise?      Valentin Angelovski      12/01/05 05:39      
      ur uhm      Terry Lingle      12/01/05 09:09      
         the easy test      Erik Malund      12/01/05 09:30      
            Good point Erik      Terry Lingle      12/01/05 09:53      
      Do I miss something?      Kai Klaas      12/01/05 11:05      
         I agree      Srinivasa Rao Samineni      12/01/05 22:49      
            Dampening      Kai Klaas      12/02/05 05:38      

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