I'm confused about the terminology of in-run bias and Noise Density.
I need to know what they mean in practice.
Lets use the example of the ADIS16405.
I have tested this board over a table without moving it and I got that it rotates something about 3-4 degrees each minute. So I can say that, for my results, the DRIFT of the board is 3-4degrees per minute.
So far so good. Now...
That's the information of the data sheet:
Typical bandwidth (KHz): 0.33
Noise Density (°/s/rtHz): 0.05
Initial Bias Error: 3°/sec
In-Run Bias Stability: 0.007°/sec
My question is: Based on these values, how is possible to calculate the drift of the board? I want to see the math that shows me the same values that I got in my test.
Any help would be extremely appreciated!