Rotary and linear Encoder

Two basic geometric linear and rotary encoder - a exist. Measurement because of the name suggests, the linear encoder and rotary encoder moving along the path identification of rotary motion. Therefore, the application to determine which encoder is the most suitable job.

Usually consists of a linear encoder scale (code) and a sensor head, read scales' interval between coding, to determine its location and position. Linear encoder resolution in each pulse distance (pulse per inch, every mm pulse, etc.). Size (code) the resolution of the tag in September with embedded in it, or on it, this is read by the head. With 100 PPI (dots per inch) resolution of linear encoder will read 100 points for each move an inch.

And linear encoder resolution measurement, the resolution of rotary encoder is per revolution (PPR) pulse measurement. Rotary encoder is usually by an internal code disc, used to determine the rotational position sensing head. Linear encoder is very similar to a tape measure, and a rotary encoder is more like a measuring wheel. With 100 PPR will (turn) rotary encoder resolution and its coded disks of 100 marks.