"RTD Voltage to temperature conversion" for temperatures below 0 degrees

NI gives us a conversion VI for temperatures above 0 degrees Celsius. I need a converter also for negative temperatures.
Where can I find such a VI or a method ?

Labviewguru and Filipe:
I found the following rather excellent reference on line as a PDF by
searching RTD+NIST+equation at:
http://www.data-acq.co.uk/pdf/CHAP-4.pdf
It has the NIST polynomial equations and technical descriptions for
various types of thermocouples and RTDs. I think it is just what you
are looking for.
You'll just have to slap them into a LabVIEW equation box and that
should be that.
Douglas De Clue
[email protected]
Labviewguru wrote in message news:<[email protected]>...
> Filipe,
>
> Gosh, I was interested in this one, and kinda curious myself why you
> couldn't convert temperatures below 0degC. I looked up RTDs in the
> Omega Catalog, and sure enough, they
go to at least -200degC.
>
> Would National Instruments be interested in a new algorithm that is
> capable of converting all temperatures? If so, I'll do the legwork,
> find the correct algorithm, and program it up.

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Hi to all!
It's my first post here.
I just started my very first java class, and I have problem with my assignment.
I have to write a program that accepts an integer # followed by a space and one letter, C or F. It should then convert number to opposite degrees (C or F).
Example of output:
Enter temperature: 35 F
Temperature in C is: 1.6
I managed to write the code, but I have a feeling that there is easier way to do this (while loop?).
Also, I'm getting following error when I input letter other than C or F, shouldn't it go straight to "else" in this case?
Enter temperature: 35 D
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String ind
ex out of range: 4
at java.lang.String.charAt(Unknown Source)
at TempConversion.main(TempConversion.java:57)
import java.util.Scanner;          // Needed for the scanner class
public class TempConversion
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               double temp3d = Double.parseDouble(temp3);
               System.out.println("Temp1 C to F: "+(((9.0/5.0)*temp3d)+32.0));
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}

stdunbar wrote:
Can I suggest two things: (1) use the trim() method (http://java.sun.com/javase/6/docs/api/java/lang/String.html#trim%28%29) to not care how many spaces are before or after the String you got from nextLine() and (2) use split (http://java.sun.com/javase/6/docs/api/java/lang/String.html#split%28java.lang.String%29) to then pull apart the String into the individual pieces. You can then examine the resulting String[] for what you expect to find.
Edited by: stdunbar on Nov 23, 2009 12:26 PM - these are the worst forums in the world to provide useful links with[trim method link|http://java.sun.com/javase/6/docs/api/java/lang/String.html#trim%28%29]
[split method link|http://java.sun.com/javase/6/docs/api/java/lang/String.html#split%28java.lang.String%29]
Or in bare form...
[http://java.sun.com/javase/6/docs/api/java/lang/String.html#trim%28%29]
[http://java.sun.com/javase/6/docs/api/java/lang/String.html#split%28java.lang.String%29]
Although I still think Scanner.nextInt() followed by next() or nextLine() is simpler.

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A question about temperature unit for SGL and DBL, LabVIEW 7.0 and 7.1.
The attachment is a test VI.
From running the test.vi it shows that the temperature units Cdeg and degC are different (why?), and Cdeg and K seem to be same.
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Could anyone please give me an explanation?
Thank you,
Xu
Attachments:
test.vi ‏28 KB

Cdeg is another way of saying "In degrees defined by the Celsuis scale starting from absolute zero". So it is the same as Kelvin.
degC is another way of saying "In degrees defined by the Celsius scale starting from the freezing point of pure water at sea level".
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Bob Young - Test Engineer - Lapsed Certified LabVIEW Developer
DISTek Integration, Inc. - NI Alliance Member
mailto:[email protected]

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How are you?
How can I do simulation for temperature sensor for two hours, should be from 10AM until 11:59AM in summer season (10 degree gradually)
i want simulate temperature sensor in C,F and K in one gragh.

duplicate post!
Stick with your original thread, when the question don't change. Keep all relevant information in one thread!
A bigger or bold font doesn't add any information/clarification to your question
Message Edited by GerdW on 01-16-2010 01:14 PM
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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http://help.sap.com/saphelp_nw04/helpdata/en/d2/bab440c97f3716e10000000a155106/content.htm
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"RTD Voltage to temperature conversion" for temperatures below 0 degrees

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