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We appreciate your patience as we improve our online experience.
04-07-2014 04:59 AM
Hello.
I am now working with NI WSN and it's nodes.
I have Vernier Stainless Steel Temperature Probe.
I need to convert input on node (using AI0) to Celsius. I know that steinhart-hart is what i need. But i wasn't able to make it work for me. http://www.vernier.com/files/manuals/tmp-bta.pdf
I know that labview has built-in function for steinhart, but i have no idea what is what there.
Kindly,
Tadinho
04-07-2014 09:04 AM
Any help please?
04-07-2014 12:44 PM
Someone?
04-07-2014 01:13 PM
Hello Tadinho,
Without more information on what you've already attempted (attach the code you already have, if you can) I can only offer general advice, but a few points:
1) This is the LabVIEW general programming forum. It's not 100% clear what your issue is, but if you need assistance with acquiring or conditional a signal with WSN hardware, I would suggest posting to the WSN-specific forum, found here:
NI Forum: Wireless Sensor Networks
http://forums.ni.com/t5/Wireless-Sensor-Networks/bd-p/430
2) Please provide specific information on the hardware you are using. What WSN Nodes? What Gateway(s)?
3) Where are you processing the data? Do you have a Real-Time WSN Gateway? Are you programming the nodes using the WSN Module?
4) What have you already done? What examples have you referred to? What works and what doesn't?
5) The Convert Thermistor Reading VI can be found in the Scaling palette (Functions>>Programming>>Numeric>>Scaling)
6) Your thread has only been up for seven hours or so, bumping it every few hours without additional information isn't likely to get you additional replies. If you've provided enough information for another forum user to be able to provide input, the usually will. If you need immediate assistance I would call your local NI Support.
Best Regards,
04-07-2014 01:53 PM
I beleive the constants are set up in the DAQmx Channel Properties for teh 3 coefficients.
-AK2DM
04-07-2014 01:56 PM
Ok, thank you. I'll add my code tomorrow.
It's not like WSN thing, it's all about getting Thermistor to show celsius.
04-09-2014 12:47 PM - edited 04-09-2014 12:49 PM
I tryed using ormula node to get formula which comes with temperature probe (Check it on manual on my 1st post).
No success.
Help me please. Maybe there is a way to use that remade Vi for thermistor convertion. I can't figure it out my self.
Kindly,
Tadinho
04-09-2014 04:09 PM
Its a fairly straightforward equasion:
04-09-2014 04:42 PM
can't wait to try it out! Thanks.
I'll reply as soon as i'll test it (prop tomorrow).
04-10-2014 05:52 AM
Had no success 😞