I am programming an Arduino Uno for a club I’m in at school and what we need is for the Arduino Uno to return temperatures after reading a voltage from a couple of Omega thermocouples. The thermocouples are J-type “Fine wire thermocpuples” With a dia./Ga. of .001, Length of 12’’ and bare insulation. The part number for them is IRCO-001. These guys are really freaking thin. Which raises my first question, how am I going to get two of these onto an Arduino? They are seriously about the width of a human hair. I have an Arduino ProtoShield Kit that I bought off Adafruit. Here’s the link: http://www.adafruit.com/index.php?main_page=product_info&products_id=51 That’s what I have. I also have a data logger. This is my friends that he’s letting me use and I don’t know much about it. It comes from “DataQ instruments” Here is its link: http://www.dataq.com/products/obsolete/di194.html He did say he’s had it for a while.
Too Long didn’t read? Totally fine. Here’s the run down:
What I am doing
I have a rocket. It’s going to go up for about thirty seconds. We have a ducted nose cone with a vortex tube in it that separates the wind into two separate areas we have one thermocouple at both of these areas. I want the Arduino to read the temperatures these thermocouples are sending me and store that data. I also want a timer to go off at launch so the Arduino can give each temperature a corresponding time. EDIT: I don’t think I made it clear that I’m going to get a different temperature reading from the two thermocouples. If the vortex generator does its job, one thermocouple will be getting cool air and the other thermocouple will be getting warm air. The experiment is measuring the temperature difference from each of the thermocouples. I was just planning on getting the temperature from the two different thermocouples at the same time and finding their difference, so that part the Arduino doesn’t have to do.
Air entering from ducted nose cone-----Vortex generator/ /Arduino
Just a really simple picture of what will be happening.
Things I have
-5 Omega thermocouples. Here is the link: http://www.omega.com/pptst/IRCO_CHAL_P13R_P10R.html
-A ProtoShield Kit. Here is the link: http://www.adafruit.com/index.php?main_page=product_info&products_id=51
-A data logger. This guy is kinda old and outdated, but I think it will still work. Here is the link: http://www.dataq.com/products/obsolete/di194.html
That’s all I have! Now for my questions part…
-How do I get these hair thin Thermocouples to attach to my Arduino or Protoshield?
-The thermocouples send out microvolts. The lowest an Arduino Uno can read is 5 volts. I’m going to need an amplifier, yes?
-What kind of amplifier should I use and where can I purchase one?
-Will I need the datalogger?
-What are some important functions and commands I’m going to need to know?
-How do I get the Arduino to start a timing program at launch?
-Could this all be done in two weeks time? Due to major part delays I couldn’t get started until just now. LAME.
Thank you so much for any help you can give me, if you found anything unclear please tell me how I can clarify. Thanks!