meal, repast(noun) the food served and eaten at one time. meal(noun) any of the occasions for eating food that occur by custom or habit at more or less fixed times. meal(noun) coarsely ground foodstuff; especially seeds of various cereal grasses or pulse.
An encoder is a sensor of mechanical motion that generates digital signals in response to motion. As an electro-mechanical device, an encoder is able to provide motion control system users with information concerning position, velocity and direction. There are two different types of encoders: linear and rotary.
If an encoder is to be mounted to a motor shaft, then a centering tool can be used to align the hole of the encoder to the shaft. The different mounting options have varying functionalities. An R-option allows for a +/- 15 degree play of motion in which the encoder can rotate back and forth.