In this tutorial we will look at a variety of devices which are classed as Input Devices and are therefore called “Sensors” Positionalandin naturein. Aspartic their name implies, Position Sensors detect the position of something which means that they are referenced either to or from some fixed point or position. These types of sensors provide a “positional” feedback.
One method of determining a position, is to use either “distance distance between two points such as the distance travelled or moved away from some fixed point, or by “rotation” (angular movement). determine its distance travelled along the ground. Either way, Position Sensors can detect the
movement of an object in a straight line using Linear Sensors or by its angular movement using Rotational Sensors.
Sensors used in Robotics
The use of sensors in robots has taken them into the next level of creativity. Most importantly, the sensors have increased the performance of robots to a large extent. It also allows the robots to perform several functions like a human being. The robots are even made intelligent with the help of Visual Sensors (generally called as machine vision or computer vision), which helps them to respond according to the situation. The Machine Vision system is classified into six sub-divisions such as Pre-processing, Sensing, Recognition, Description, Interpretation, and Segmentation.
Different types of sensors:
There are plenty of sensors used in the robots, and some of the important types are listed below:
· Proximity Sensor,
· Range Sensor, and
· Tactile Sensor.