Description
在整定参数无把握的情况下，一般都不宜把初始试验参数放得太灵敏，例如比例度不宜放得太小，以免系统出现振荡。一般作法是在手动控制时，阀门需要开得较大者，P值(比例度)可选得小一些；阀门不需要开得较大者，P值(比例度)可逃得大一些。
Giddings &Lewis 36″ FACING HEAD, w/ Tool Holder
36″ Dia. GIDDINGS & LEWIS Cont-feed Facing Head
36″ W 36″ L Giddings &Lewis 36″ X 36″ AIR LIFT ROTARY T
4′ Arm 9″ Col Dia Giddings &Lewis CHIPMASTER RADIAL DRI
90° GIDDINGS & LEWIS Right Angle Milling Head
For #FUAR Horizontal Boring Mill, #50 Taper, #7 Morse
Giddings & Lewis X-Axis Feed Screw / G&L FS155603 – NEW
GIDDINGS & LEWIS AIR-LIFT ROTARY TABLE 48X48
Giddings Lewis Boring Mill 350t
