Research Article

Online Prediction of Milling Inner Hole Roundness Error Based on Accurate SSEM Value Extraction

Table 3

Influence of different measurement angles on various indexes.

Measurement angle

(0°, 30°, 90°)01.390.678
(0°, 30°, 120°)01.240.768
(0°, 30°, 150°)01.140.778
(0°, 60°, 90°)02.410.268
(0°, 60°, 120°)01.350.1216
(0°, 60°, 150°)01.230.688
(0°, 42.8°, 126.4°)0.171.340.931
(0°, 122.5°, 202.5°)0.271.270.960
(0°, 45°, 96.5°)0.741.711.210