Where can I get "converting thermistor readings.vi" that I see on these forums?

[Hillman]

Hi,

Thanks for the post!

I think you need to be a little bit more detailed in your posts.

Could you please provide a link to the forum..

And what version of LabVIEW are you using?

On My machine I found it under  Maths>>Numeric>>Scaling.

Hope this helps, 

Kind Regards,
James.

[Tan_34]

James, I apologize for the lack of information. I'm new to posting as well as LabVIEW. I am currently using a student version of LabVIEW 8.0 to build my program. I also have access to the full 8.5 version in my lab class. I tried looking under Math >> Numeric >> scaling in the student version but did not find the "converting thermistor reading.vi." Is this something I am suppose to build? Correct me if I am wrong, but I was thinking it was a standard vi that is available to us.

My term project for class involves taking in temperature measurements from (2) thermistors connected to separate ends of a copper plate. The hardware we currently have is a DAQ board PCI-6024E and a DAQ signal accessory. I may not have all the hardware needed, but is it still possible to take (2) temperature readings with what I have? I also tried looking under examples in LabVIEW 8.5 and used the thermistor vis, but was unable to make sense of the vis and couldn't take any readings.

Let me know if you need anymore information. Thank you

Tan 

[John_P1]

Hi Tan,

Welcome to the forums!  The Convert Thermistor Reading vi was added in LabVIEW 8.2 along with the other vis in the Scaling Palette.  You should be able to use this function in LabVIEW 8.5.

Which examples specifically are you looking at?  I would recommend looking at the DAQmx examples, since the 6024E supports both our Traditional DAQ and DAQmx drivers.  The thermistor examples are meant for hardware designed specifically for thermistor measurements such as the NI 9219, so you might want to just try using a basic analog voltage input example with your 6024E.

Are you using the 6024E analog outputs for excitation?  If using the 6024E for excitation, keep in mind that the analog output channels are capable of outputting up to 5mA.  For more information about thermistors in general, check out the following link: Working with Thermistors and RTDs.

-John 

[Hillman]

Hi Tan,

Thanks for the extra information.

A fellow UK AE replied to your response.

Did this advice help?

Kind Regards,

James