![]() Both are “digital” in the sense that they generate pulses corresponding to the rotary motion, rather than an analog signal which is in some way related to the shaft angle. ![]() Each approach has characteristics which make it a good fit (or not so good) in some situations. Instead, a non-contact encoder is used.Ī: The two most-common approaches to implementing the rotary encoder use optical and magnetic techniques. (Note that the term “rotary encoder” is often shortened to simply “encoder,” but it is important not to get this “encoder” confused with the many other types of electromechanical and electronic encoder functions in use, such as those which encode data from one format to another.)Īlthough it is possible to use a brush to touch a conductive part on a shaft and so complete a circuit – analogous to a DC motor commutator – the resolution and long-term reliability of this approach is inadequate. ![]() To do this, a component called a shaft or rotary encoder is added to the motor/shaft assembly. Across a wide range of applications, it is necessary to need to accurately sense the motion of a rotary shaft and know its position, speed, or even acceleration.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |