Setup:
Pixhawk 2.4 with ArduCopter 3.1.2
Frame: 3DR Y6 with new black 850 KV motors, 3DR ESCs SimonK, 3DR PowerModule, 3DR Radio 433 MHz
Power supply: Manson HCS-3602 set to 12V
Radio: FrSky Taranis with X8R connected using SBUS
Hello,
I put my copter on a table in a heated room with closed windows. The copter had physical connection to power supply only. Notebook used 3DR radio to connect.
I noticed strange measurements.
- altitude is changing all time (copter was standing on the table without movement)
-- CTUN:Alt appr. 1.5m
-- CTUN:BarAlt appr. 1.5m
- Raw temperature is increasing constantly appr. first 10 minutes after start
- Several measurements have severe spike, some go to zero, others to very high number (thousands)
- AccX, AccY and AccZ have severe spikes (up to pos. and neg. several thousand!)
beside the spikes and while motors are spinning, the range is 10 times better (x/y: -0.2 to +0.3) to acceptable range (-3 to +3) (see http://copter.ardupilot.com/wiki/ac_measuringvibration/)
Are these spikes common or Is my pixhawk defect? I had similar spikes with older firmware versions.
Please find attached my simple solution for dampering. I put M3 vibration damper between the frame and the whole platform with pixhawk. Additonal the pixhawk is on mounting foam provided by the kit.
BR
Björn
Replies
APM Planner 2 detects and downloads it from Internet.
BR
Björn