Incremental encoder structure of incremental encoder is mainly composed of source and encoder, detection grating, photoelectric detection device and the conversion circuit made up of several parts.
The working principle of incremental encoder output pulse incremental encoder by turns, through counting device to know its position, when the encoder or power failure, rely on counting device's internal memory to remember the location.
Note 1 using incremental encoder.
Incremental encoder resolution differences, using each lap measure, the number of pulses produced from 6 to 5400 or higher, pulse number, the more the higher the resolution;
This is one of the important basis for selection.
Suggest B pulse do consequent (
Do the reverse pulse, A pulse (
Pulse, Z origin zero pulse.
Set up counting the stack in the electronic device.
Incremental encoder usually have three way signal output (
Difference have all signal)
: A, B and Z, generally USES the TTL level, A pulse in the former, pulse in the B, A, B, pulse is 90 degrees, each lap sends A Z pulse, mechanical zero can be used as A reference.
Generally use A advanced B or B ahead of A given to.
Using PLC to collect data, can choose high speed counting module;
Using industrial computer data, can choose high speed counting board;
Using single chip microcomputer to collect data, it is suggested that chooses input port with photoelectric coupler.
After the power outage, there cannot be any movement, encoder when calls work, in the process of the encoder output pulse, also can't be a pulse interference and loss, otherwise, the counting device memory of zero offset, and the amount of the offset is don't know, can only know wrong after the production results.
Incremental encoder advantage principle of incremental encoder structure is simple and easy to implement;
Mechanical average life span is long, can reach tens of thousands of hours;
Strong anti-jamming capability, signal transmission distance is longer, has high reliability.
The downside is that it cannot directly read out the rotation axis of absolute position information.
Shanghai electronic products is 27 years old, encoder manufacturers, specializing in the production of various kinds of incremental encoder and absolute encoder, direct manufacturers, quality goods safe, after-sale guaranteed!
Electronic research and development of magnetoelectric encoder performance not easily affected by dust and condensation;
Its simple and compact structure, non-contact, long life, high and low temperature resistance, resistance to vibration, fast response speed and lower cost.
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