Flatness control system Non-contact blance beam measuring principle from the sensor, and the way to focus on the controller, have carried out a revolution.

    It uses ultrasonic ranging direct way to replace the traditional way of sensing the corner. Ultrasonic probe beam emitted on the ground, and then receive the reflected echo, measure the time taken by S = vt and Corrects sensors can calculate the actual distance, ranging approach is very intuitive.

    Non-contact flatness control system consists of distributed systems in two paver left and right sides symmetrical components. There is a digital controller on each side respectively, over three ultrasonic distance sensor probe points and a 8.3 m folding aluminum beam, fixed by the relevant components paver big arm. Also contains five of the ultrasonic probe and a calibration of the sensor in each sensor. In paver driving, each side 15 (3X5) a probe to detect the point on the ground at the same time, the measured data is transmitted to the digital controller, centralized treatment. By comparison, remove the two extremes in each set of data in order to eliminate the influence of outliers, and the remaining nine data specifically set by the weighted arithmetic average, the resulting data as a control parameter, the effective control of the paver . In the paving process, ultrasonic sensors as a whole to continue moving forward with the installation of pavers, thus measuring each probe on the ground are continuous for paver control the entire system is carried out in a dynamic, thus achieving continuous control purposes.