d-axis and q-axis inductance
exchange between X-axis and Y-axis
hypothalamic-pituitary-adrenal axis HPA-axis
Long axis-short axis method
major axis and minor axis of an ellipse
mapping from virtual axis space to real axis space
Non-perpendicularity between horizontal axis and vertical axis
q-axis and d-axis inductances
Variation-rate of major axis and minor axis
0-axis harmonic injection
2- Axis turntable calibration
2-axis scanning me chanism