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Hi is there anyone who can help me covert Microvolt output of a thermocouple to a temperature "Celcius".
i am having a deep burden on analyzing this formula from

http://srdata.nist.gov/its90/type_s/scoefficients.html[^]

If anyone good in math can help please do it would mean a lot

what i want to achieve is a user will input a certain value(numeric) then when a button is click it will convert a value microvolts to celcius or celcius to microvolts value.
Posted
Updated 25-Feb-12 5:57am
v4

1 solution

The page you have linke to shows that there are many tables available depending on the type thermocouple you are using. So first you have to decide which device is being used then down load the correct table with the coeefficients. One table I downloaded as a sample had this information inside:

t_90 = d_0 + d_1*E + d_2*E^2 + ...  + d_n*E^n


This should be close enough for you to translate into a formula. BTW in .NET there is no power operator, but there is a method called Math.Pow[^] which you can use to achieve the same that is indicated in the above formula by the ^ sign. d_x are the coefficients and E is the voltage. Go ahead!


  1. Decide on the type of device to use.
  2. Download the correct data table from here: http://srdata.nist.gov/its90/download/download.html[^]
  3. Decide on the temperature range your devce is being used in.
  4. Get the correct temperature coefficients from you table making sure they match the temperature range.
  5. Write code that will caclulate the temperature with the chosen coefficients.
  6. Done!


Regards,

Manfred
 
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Comments
JMAM 24-Feb-12 22:10pm    
Ok thank you sir i will try this one
JMAM 25-Feb-12 11:55am    
As i am new in Vb.net, i am sorry sir but i do understand only few.

Can you make simple program? lets say say choose Type T and a certain range and

coefficient. so i can have basis to do the program. IF anyone could help me

please do as i am new and eager to do this task and wants to help others when i can

I really need a program that will covert Microvolt output of a thermocouple to a temperature "Celcius"

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