Robot is an autonomous or semi autonomous electro-mechanical machine which can perform task according to its internal programming or external guidance. Robots are very much similar to humans. How do humans sense? For example a human sees something and sends neural signals to the brain via neurons and reacts accordingly. The development of all these senses artificially is achieved through ‘Sensors‘. Sensors are the transducers which receive the physical changes of the environment and convert them into electrical or electronic signals. These analog signals are converted into digital by using analog-to-digital convertors. Control system functions as a brain in robotic systems.
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