描述
整定PID参数时，一定要力求工况稳定，尤其是衰减曲线法整定PID，否则工艺中的其他干扰进入系统，就不能得到正确的4:1~10:1衰减比例度和衰减周期，就不能求得最佳PID参数。
Vertical Boring Mill Giddings & Lewis Model 512
Giddings & Lewis G&L Vertical Turret Lathe 52 table VTL
48″ GIDDINGS & LEWIS VERTICAL TURRET LATHE
G&L NUMERICAL CONTROL
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5″ Giddings & Lewis Table Type Horizontal Boring Mill
Giddings & Lewis CNC Horizontal Machining Center
Giddings & Lewis Ram 630 4-axis horiz machining center
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6295 GIDDINGS & LEWIS FRASER 4″ Horizontal Boring Mill
G&L Giddings Lewis Vertical Boring Mill (CNC)
