Control and alarm function of laser outer diameter measuring instrument

In order to better realize the automatic detection, the one-way caliper adds the PID adjustment function and the out of tolerance alarm function. The sound and light alarm system and the display screen display alarm system are adopted for the out of tolerance alarm, so as to ensure the real-time understanding of the production status of rods and wires. The single path caliper has the automatic control function, and the outer diameter of rolled material is controlled by controlling the tractor or extruder. The following is a brief description of the extruder control. The single path caliper sends the measured value to the control display circuit to display the measured value in digital form. At the same time, according to the deviation value, the extruder is controlled by the digital PID control module of the caliper extruder. The extruder needs position signals. Therefore, the digital PID control module of the caliper extruder adopts the position type PID control algorithm. Its basic working principle is: the program collects diameter values from the caliper according to the time interval set by the user, compares them with the set value, obtains the deviation value, calculates the voltage control value according to the PID control program, and superimposes the voltage control value on the DC drive voltage of the extruder motor, So as to adjust the diameter. The control system of the extruder is basically similar, but the control of the extruder and the tractor is opposite. The faster the extruder is, the thicker the rolled material is, and the slower it is, the finer the rolled material is; The faster the tractor is, the thinner the rolled material is, and the slower the tractor is, the thicker the rolled material is. The PID automatic control system of the single path caliper is a closed-loop control, which can ensure that the rolled products are produced within the specified range, thus ensuring the quality and yield of the rolled products and reducing the waste of raw materials.