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Since absolute encoders are significantly better than incremental encoders in positioning, they have been increasingly used in industrial control positioning.
2. The encoder reasonably selects the output signal transmission medium of the photoelectric detection device, and uses twisted-pair shielded cables to replace ordinary shielded cables
Encoders are divided into absolute value type and incremental type. At present, the price of absolute encoders is about 4 times that of incremental encoders. 70% of the applications on the domestic market are incremental encoders with relatively economical prices. They are mainly used in industries such as packaging,...
Each position of the absolute encoder corresponds to a certain digital code, so its indication is only related to the start and end positions of the measurement, and has nothing to do with the middle process of the measurement.
The output form of the encoder: NPN open collector output, PNP open collector output, complementary output, voltage output, linear drive output. Determine the output form of the encoder according to what signal the subsequent device input can receive (which can be reflected in the naming rule).
The encoder uses the structure technology of the standard potentiometer, so it is easy to produce. It is basically a dual-brush quadrature infinite potentiometer. It has a full-circle ring of resistive material, both ends are connected to electricity, and two electrically independent brushes move on it. The two...
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