In this posting I will show how the heating will work.
I haven't received the Carbon Fiber (It has been shipped from Russia) so this will be my backup. I have taken apart a 12v heated seat cushion for the element wire. Below are photos of how I set it up and used 4 C-cell batteries to supply the power (C-cell batteries are bulky so they won't be used in the suit. I used 12 feet of heating element (A lot longer then what I will be using in the suit). From the start temperature to full temperature it took 3.5 minutes, this time will be cut down when I shorten the length for the element. I ran this test in the basement which was fairly cool (18 deg C/65 deg F), the wire was (20 deg C/68 deg F) when I started the test. As you can see in the photos the temperature topped out at (41 deg C/108 deg F). Once at full temperature it took 2 minutes to cool down, this is once I covered it up with a towel to simulate clothing. I understand that carbon fiber reaches temperature within 20 seconds, this will be what I want in order for the suit to work effectively.
4 C-cell batteries to power the test
The heating element wire (The white wire). I wrapped it in tape so I could insert the thermometer
All set up for the test
Start temperature
45 second mark
2 min 15 second mark
3 minute mark, almost to temperature
Up to temperature, this did take longer then I expected, but it was 12 feet of element.
I have also been working with Texas Instruments Code Composer to start programming the MSP432P401R. This will hopefully be ready for running trial code when the hardware is received!!
Dale Winhold
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