Roundss encoder classification！

Roundss encoder classification

The encoder is generally divided into incremental and absolute, they kept the biggest difference: in the incremental encoder, the position is the number of pulses from the zero position mark the beginning of the calculation determined, and the absolute encoder position by reading the output code determined. In the circle, the output code reading each location is unique; therefore, when the power is turned off, the absolute encoder is not separated from the actual location. If the power is turned on again, the location is the current reading is still effective; unlike incremental encoders, as necessary to find the zero mark.

Now the encoder manufacturers are whole series, usually proprietary, dedicated elevator type encoder, machine-specific encoder, servo motor special type encoder, and the encoder are intelligent, there are various parallel interface can communicate with other devices.

The encoder is a device the angular displacement or linear displacement into electrical signals. The former became the code disc, the latter known as the yardstick. In accordance with the readout mode encoder can be divided into contact and non-contact two. Contact output using brush, a brush contact conductive region or insulating region to represent the status code is "1" or "0"; the acceptance of non-contact sensor is a photosensitive element or magnetic element, when using a photosensitive element photic zone and opaque regions to indicate the status code is "1" or "0."

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