What's the Grating Ruler

Rating ruler, also known as grating ruler displacement sensor (grating ruler sensor), is a measurement feedback device using the optical principle of grating.Grating ruler is often used in the closed-loop servo system of CNC machine tools, which can be used to detect linear displacement or angular displacement.The output signal is digital pulse, which has the characteristics of wide detection range, high detection accuracy and fast response speed. For example, in the CNC machine tool is often used to detect the coordinates of the tool and the work piece, to observe and track the tool error, to play a role in compensating the tool motion error.

Tronstol A1 pick and place machine equipped grating self-feedback closed loop system, the missing pulse can be automatically corrected through the cooperation of the grating ruler and the reading head, and feedback to the controller can be timely also when the rotor is locked.After using the grating ruler closed-loop system, the accuracy of the pick and place machine is greatly improved, and the phenomenon of out of step of the placement machine is avoided.

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