Description
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。
SHIMADZU RF5000U SPECTROFLUOROPH?OTOMETER SYSTEM
Shimadzu RF-5000 Xenon Lamp Spectrofluoroph?otometer Lab
Shimadzu UV-120-02 Spectrophotomet?er
SHIMADZU/SUPELC?O THERMOGREEN LB-2 20633 NIB
SHIMADZU RF-535 FLUORESCENCE HPLC MONITOR
SHIMADZU GC O-RINGS FOR GLASS LINERS 036-11203-84 NEW
Shimadzu OptionBox L + ( 2)FCV-14AH + (1)FCV-11AL Valve
SHIMADZU FILTER ELEMENT FOR HPLC EASY TO INSTALL FILTER
Shimadzu RF 5000 U Spectrofluoroph?otometer