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.
With incremental encoders, you can measure only changes in position (from which you can determine velocity and acceleration), but it is not possible to determine the absolute position of an object. A third type of encoder, called an absolute encoder, is capable of determining the absolute position of an object.n encoder is an electromechanical device that can measure motion or position. Most encoders use optical sensors to provide electrical signals in the form of pulse trains, which can, in turn, be translated into motion, direction, or position.