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???
07/24/09 16:09
Modified:
  07/24/09 16:13
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 		 #167827 - Yes, but still looking funny...
Responding to: ???'s previous message
...unless you connect R7 / C2 and R11 / C3 to the corresponding OPamp outputs. Then the circuit shall show two differential amplfifiers with offset adjust and providing a low pass filtering with a corner frequency of 800Hz? Unfortunately, this offset adjust will not work properly, because the inverting input of OPamp isn't at virtual ground but depends on the signal itself! Not a convincing concept...

Also, it's still not clear what outputs exactly are subtracted and how the two ADXL202 are oriented to each other in the X/Y plane.

Kai

List of 24 messages in thread
TopicAuthorDate
Accelerometers as angle sensor, analog circuitry            01/01/70 00:00      
   Integrators ?            01/01/70 00:00      
      Seems to work with subtraction            01/01/70 00:00      
         There's no need to use two of them...            01/01/70 00:00      
   A bunch of baloney??            01/01/70 00:00      
      Shame it won't work.            01/01/70 00:00      
         You can compensate for centrifugal accelerations, but not...            01/01/70 00:00      
            How to use Accelerometers as angle sensors            01/01/70 00:00      
               Bloody hell, are you trying to solve this relativistically?            01/01/70 00:00      
                  The problem            01/01/70 00:00      
                     Could this be correct?            01/01/70 00:00      
                        Yes, if...            01/01/70 00:00      
                  Understood but the theird method...            01/01/70 00:00      
                     Upward and downward...            01/01/70 00:00      
                        Am I thinking in 2 Dimensions and you in 3D ?            01/01/70 00:00      
                           Centrifugal acceleration            01/01/70 00:00      
               What I wanted to tell...            01/01/70 00:00      
      Filter you guess then ?            01/01/70 00:00      
         It is a differential amplifier...            01/01/70 00:00      
            Schematics            01/01/70 00:00      
               Yes, but still looking funny...            01/01/70 00:00      
   Gyroscope            01/01/70 00:00      
      Gyro            01/01/70 00:00      
      Gyro ?            01/01/70 00:00      

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