Companian vertical speed calculation derivation
Posted: Sat Nov 19, 2016 6:05 pm
Can someone explain the formula & inputs Companian uses to calculate vertical speed?
I have been using a FrSky precision vario to record altitude data on my Taranis to try and establish descent rates for various control settings.
The data is then analysed in Companian.
To establish the descent rate I have been taking the average gradient of the Baro readings over say 2minutes.
Baro readings frequency is 1 second.
However, the Companian software also displays Verticle speed in the data file, but it does not agree with my values calcluated from Baro graphs.
It does seem to agree whether I am climbing or descending, but not the values!
I have tried various manipulation of my Baro data to get the Companian vertical speed without success!
Can someone explain it & what I am doing wrong!!
I have been using a FrSky precision vario to record altitude data on my Taranis to try and establish descent rates for various control settings.
The data is then analysed in Companian.
To establish the descent rate I have been taking the average gradient of the Baro readings over say 2minutes.
Baro readings frequency is 1 second.
However, the Companian software also displays Verticle speed in the data file, but it does not agree with my values calcluated from Baro graphs.
It does seem to agree whether I am climbing or descending, but not the values!
I have tried various manipulation of my Baro data to get the Companian vertical speed without success!
Can someone explain it & what I am doing wrong!!