Heidenhain Grating ruler ID: 557660-04 LC 183 240mm

　　Grating ruler ID: 557660-04 LC 183 240mm Heidenhain

　　Grating ruler ID: 557660-04 LC 183 240mm Heidenhain

　　Grating ruler ID: 557660-04 LC 183 240mm Heidenhain

　　With the development of microelectronics technology, sensor technology, computer technology, and modern communication technology, photoelectric sensors can be used to develop automatic meter reading systems. The aluminum disk of the electric energy meter is driven to rotate by the torque generated by eddy currents and magnetic fields. By using a photoelectric sensor, the number of revolutions of the aluminum disk can be converted into a pulse number. For example, by locally coating black on a rotating bright aluminum disk and using a reflective photoelectric emission receiving tube, when the aluminum disk rotates, pulses are generated at the locally coated black area, and the number of rotations of the aluminum disk can be sampled and converted into corresponding pulse numbers, which are then sent to the T0 port of the CPU for counting processing through a photoelectric coupling isolation circuit. The use of optocoupler isolators can effectively prevent interference signals from entering the microcomputer. Combined with other transmission methods, an automatic meter reading system can be formed.

　　heidenhain 291697-26

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