•Laser two-dimensional scanning: Two bunches of lasers to do outer diameter measurement of non-contact ,non-damage from the different angle, it can effectively eliminate error caused by work vibration;
•DSP data processing technique: The sampling speed is quick ,precision is high and the performance is stable;
• The reaction control integration module with PID constitute the online outer diameter closed loop observation and control system
(e.g.: diameter of the object measured is slight big or small, transmission rate is big or small), which can change the transmission rate to control the outer diameter be tested through adjusting the power supply with PID. It’s easy to operate, user can setup a boundary numerical value, main engine will give an alarm automatically while the test result exceeds the set value.