SW-000103
Document Number: SW-000103
Page 44 of 51
Revision: 1.1
13
CONVERSION OF THE SD CARD LOGS
1.
IMU Logs
a.
Accelerometer
Conversion from output count to g
g = count*(FSR/32768)
where
Count = count read from sensor.
FSR = 2,4,8,16 selected by user.
Example
Count = 16384
FSR = 2
G = 16384 * (2/32768) = 1 g
b.
Gyroscope
Conversion from output to dps
dps = count*(FSR/32768)
where
Count = count read from sensor.
FSR =16,32,64,125,250,500,1000,2000 selected by user.
Example
Count = 16384
FSR = 2000
G = 327 * (2000/32768) = 19.95 dps
2.
Magnetometer Logs
The logs are in 100s of uT.
Convert to uT by dividing the number by 100.
Example = 15040 = 150.4 uT
3.
Pressure Logs
a.
Pressure
Values are in Pascal.
b.
Temperature
Values are in 10s of degC.
Convert to degC dividing the number by 10.
Example 313 = 31.3 degC
