JBT 6406-2006 JBT 7020-2006
The millivolt signal generated by the tension and pressure sensor is amplified into A voltage signal of 0~5V, and then transmitted to the computer through the mining/protection circuit A/D conversion and interface circuit. The computer is processed by calculation. Send to the display or printer printing, control signal through the interface circuit D/A conversion to the servo amplifier circuit to adjust the control actuator. The servo valve in turn pushes the hydraulic cylinder to achieve closed-loop control of shear force.