描述
在工业生产过程当中，存在一些如温度、压力、流量、液位和速度等连续变化的量（即模拟量），PLC采用相应的A/D和D/A转换模块及各种各样的控制算法程序来处理模拟量，完成闭环控制。PID调节是一般闭环控制系统中用得较多的一种调节方法。过程控制在冶金、化工、热处理、锅炉控制等场合有非常广泛的应用。
NEW 20-HP FLUORINERT CHEMICAL FLUID PUMP HEAT EXCHANGER
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135KVA 208/230V3Ø 340A VARIAC AC LINE VOLTAGE REGULATOR
NEW 40KW LASER WATER CHILLER COOLER BATH HEAT EXCHANGER
NEW 4-HP WATER PUMP CHILLER COOLANT BATH HEAT EXCHANGER
135KVA 3Ø AUTOMATIC BUILDING AC POWER VOLTAGE REGULATOR
135KVA 3Ø DIGITAL TV TRANSMITTER LINE VOLTAGE REGULATOR
SONY 1958 ORIGINAL PROTOTYPE FM TRANSISTOR STEREO TUNER
SONY’S FIRST HI-FI COMPONENT ONE-OF-A-KIND HAND-BUILT!
15KW BATTERY SOLAR PANEL ARRAY SIMULATOR DC POWER SUPPL
15KW HEATER TEMPERATURE PROCESS CONTROL DC POWER SUPPLY
