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???
06/14/05 08:16
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#94858 - wheatstone bridge
Responding to: ???'s previous message
hi guys i found out that i probly could use a wheatstone bridge to measure the resistance but i found a formula to calculate the output of a wheatstone bridge but i need be able to calculate rx the unknown resistance so i was hoping someone might be able to show me how to transpose this formula
Vout = vin(r3/(r3+rx)-r2/(r1+r2)
if some could show me how to rearrange this formula to find Rx i would really appreciate it thanks

List of 23 messages in thread
TopicAuthorDate
making a pt100 thermometer using a 8051            01/01/70 00:00      
   you are usually better off            01/01/70 00:00      
   current sources            01/01/70 00:00      
      TI (Burr-Brown) App Note SBAA050            01/01/70 00:00      
         That's great            01/01/70 00:00      
         ads574            01/01/70 00:00      
         Indeed a very good link!            01/01/70 00:00      
      calculating resistance            01/01/70 00:00      
         Where are the problems, concretely?            01/01/70 00:00      
            measuring resistance            01/01/70 00:00      
               Use better mulitmeter...            01/01/70 00:00      
                  2 multimeters            01/01/70 00:00      
   max1410            01/01/70 00:00      
   Theoretical curve            01/01/70 00:00      
      PT100            01/01/70 00:00      
   pt100s            01/01/70 00:00      
   Look at LT1001data sheet            01/01/70 00:00      
   wheatstone bridge            01/01/70 00:00      
      Look at it this way.....            01/01/70 00:00      
         anyone knows            01/01/70 00:00      
            Keep it simple...            01/01/70 00:00      
               So does Maxim            01/01/70 00:00      
               Already done...            01/01/70 00:00      

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