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???
05/17/05 22:14
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#93557 - you are usually better off
Responding to: ???'s previous message
And puting a voltage across it and measure the current

you are usually better off with a constant current generator and measuring the voltage.

There is tons of appnotes on this around, try Maxim, Linear technology, national semi, analog devices etc.

Erik

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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