AutoQuad Forum

As you can see, one of the graphs is glitchy, probably due to condensation. I will try the zip lock method next.

after 4 attempts, this is the best I've been able to achieve. the ratez parameter is being the most troublesome. is this log usable? the sample time is over 2 hours (i fell asleep)

This is with the ziplock bag? You are freezing with the bag open, and closing bag/container inside the freezer? If it keeps acting up like this, send me or Paul an email and we will work out something. However, I am pretty sure that it is a condensation problem you are seeing. You can add a small silica sachet or make a fabric bag with rice and stick that inside the ziplock bag - that should suck up any excess moisture in the air around the board.

Jussi

This might be ok. Could you post a graph of voltages 1,2 & 3 instead? What we see here is the rate data filtered through the default calibration parameters, which could be making it look strange.

Voltage Graph

Temp Graph

That's keeper if you got sufficient temperature range.

I uploaded the wrong Voltage graph, so I changed it to the correct one.

My temps were about -27 to 50

Here is my AQ container. It's a rubber lipped sealing jar, open cell foam from a camera case and some anti-static bubble wrap as a final insulator for the board.

Looking good, Chris!
Only the round container makes it a bit more complicated to level the board while freezing.

btw: you're using an old version of QGC. The recent one has the double MAGZ eliminated.

Hi,

here are some of my graphs. I calibrated 6 times and they always look the same.

Voltage 1-3, the noisy curve is Voltage 3:

Rate, the noise in the green curve is always arround 375.000 data points in every calibration:

Acc, the noise always occurs at the same time:

I flashed v6.6, should I try v6.5 for calibration? What do you think?

Cheers,
Heiko