描述
经验法整定PID的关键是“调参数,看曲线”。因此,在调整过程中,必须弄清PID调节器参数变化对过渡过程曲线的影响关系。例如,看到曲线波动很大时,就不能再减小P值(比例度),也不应该减小I值或加大D值,否则就会使系统出现剧烈振荡。
48” x 48” GIDDINGS & LEWIS Tilting Rotary Table
GIDDINGS & LEWIS (BICKFORD) Semi-auto drill point grnd
GIDDINGS & LEWIS (WINSLOW) EXACTAMATIC HC DRILL GRINDER
Giddings & Lewis Winslowmatic HR947 Drill point Grinder
Giddings & Lewis Drill Grinder
GIDDINGS & LEWIS 502-04112-11R5 USPP 5020411211R5
GRINDER – GIDDINGS & LEWIS WINSLOW DRILL POINT GRINDER
GIDDINGS & LEWIS BALLSCREW 3″ DIA. 2 PPI MC-60 450-0423
Giddings & Lewis Right Angle Milling Attachment
Giddings & Lewis Right Angle Head Mount for G60 FCXS