How do I measure Nonlinearity in a MEMS gyroscope?
ADIS16445，SELF-TEST indicate normal, Bias Corrected, ARW and IRBS is normal.
Dynamic Range: ±62°/sec ; Sample Rate : 819.2 SPS
The Measure-value is an average of 20-sec's gyro data.
1. I don‘t think my ADIS16445 was working in normal. Since the Measure-Value has significant difference between Actual-value.
2. I'm wondering my formula of Nonlinearity is correct. (62 is Dynamic Range)
eg: (blue column in the chart) Nonlinearity = 0.043/62 = 0.0687%