Temperature probe

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* mostly self explanitory, easy for beginners
 
* mostly self explanitory, easy for beginners
  
[Originally submitted by ElAMPO on May of 2008 to provide temperature compensation to the [[PPM_Meter]] and [[pH_Meter]] projects, moved to its own page May 2009]
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Originally submitted by ElAMPO on May of 2008 to provide temperature compensation to the [[PPM_Meter]] and [[pH_Meter]] projects, moved to its own page May 2009. Done quickly, needs cleanup.. u_u
  
 
==Circuit==
 
==Circuit==

Revision as of 17:44, 31 May 2009

Temperature Probe

Contents

What is this?

Here is a simple easy to make temperature probe using easy to obtain components you may already have around. ^_^ It is perfect for interfacing with microcontrollers to provide temperature measuring ability.

  • no hard to find pieces
  • cheap and small sensor too
  • circuit is simple
  • mostly self explanitory, easy for beginners

Originally submitted by ElAMPO on May of 2008 to provide temperature compensation to the PPM_Meter and pH_Meter projects, moved to its own page May 2009. Done quickly, needs cleanup.. u_u

Circuit

DiodeTempSchem.png

For the diode probe use a piece of shrink wrap tubing for waterproofing

The results for my probe are plotted on the next graph

DiodeTempResult.png

The precision is pretty good if you make a 2 or 3 point calibration like the one on the above graph


Hi,we measured our Ec via a voltmeter but the reading was -4 is that possible thanks.

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