描述
长线传输干扰：在计算机控制系统中，现场信号到控制计算机以及控制计算机到现场执行机构，都需要一段较长的线路进行信号传输，即长线传输。对于高速信号传输的线路，即在高频信号电路中，多长的导线可作为长线，取决于电路信号频率的大小，在有些情况下，可能1m左右的线就应作为长线看待。
Gefran GTS Solid State Relay SSR Power Module 440v 55a
MKS 253A-1-40-1 32mm Exhaust Throttle Control Valve
Headway Vac Steal 26G Vacuum Pump Ballast stabilizer
Vision Engineering Beta Alpha Lynx Microscope Head
GE Druck Unomat TRX-II iS Documnting Process Calibrator
Simulates/Reads RTD’s/thermocouples, pressure, volt/amp
NEAT 310 Programmable Brush/Brushless Servo Controller
310-S Servo Controller
Oriental Motor DSP501H Speed Controller DIN RAIL 100v
Bodine ABL-3912E SCR DC Brushless Controller +motor
in: 115VAC, 15a — out: 0-130VDC, 3a w/22B2BEBL-D3
National Instruments GPIB-SCSI-A Controller/Interface
