紫外平行光源照射圆钢得到投影,投影面积的变化引起光敏电阻阻值的波动,进一步引起输出电压的变化。当耳子出现时,报警器报警以告知用户,同时触发反馈系统动作,电机启动调整K_1、K_2道次压下量直至耳子消失,耳子的凸起高度值也会同步传输至矫直机的控制系统,通过矫直和研磨消除已产生的耳子。本系统具有较好的适应性,圆钢偏离中心位置或振动均不会影响检测结果,环境温度和湿度对测量精度的影响可忽略不计,无测量死角。 UV parallel light source irradiated round bar to be projected, the projection area changes caused by the photosensitive resistor resistance fluctuations, further causing the output voltage changes. When the ear appears, the alarm alarm to inform the user, while triggering the feedback system action, the motor starts to adjust K_1, K_2 times the amount of depression until the ears disappear, the raised value of the ears will be synchronized to the leveler Control system to eliminate the generated ears by straightening and grinding. The system has good adaptability, round bar deviation from the center position or vibration will not affect the test results, ambient temperature and humidity on the measurement accuracy is negligible, no measurement of dead ends.