# Gyro vs accelerometer for rotational acceleration

For the same price chip, which will be more accurate to measure rotational acceleration: a gyroscope, or an accelerometer 10cm away from the pivot point?

• Do you want to integrate the rotational acceleration to compute the orientation, or just keep it as is? – Vladimir Cravero Jun 15 '14 at 17:02
• @VladimirCravero Keep it as is. I would differentiate the orientation to get the rotational acceleration. – Dan Jun 15 '14 at 17:53
• a gyroscope would give you an output in $\frac{\text{rad}}{s}$, you can differentiate it to get $\frac{\text{rad}}{s^2}$, is that right? – Vladimir Cravero Jun 15 '14 at 20:00
• @VladimirCravero Correct. – Dan Jun 15 '14 at 23:44