Research on the Weight Removing Model and Control Method for the Unbalance Vector of Thin Disc Workpiece

Table 2

The estimated unbalance vectors of 5-time testing.

Testing times	The unbalance vibration vector after the second trial weight () (μm∠°)	The estimated unbalance vectors and measuring errors
		The estimated unbalance vectors () (g.cm∠°)	The measuring and calculating errors () (g.cm∠°)
1	2.707∠-174.41	31.229∠176.29	3.488∠-35.38
2	2.800∠-153.38	29.594∠179.54	1.295∠-10.53
3	2.770∠-158.92	30.074∠178.74	1.868∠-20.8
4	2.707∠-169.52	30.866∠177.04	2.969∠-32.47
5	2.927∠-180.39	32.059∠175.85	4.328∠-32.38