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Robots Components

Robot Sensors and their applications

A sensor is a device which can be used to detect changes in the surrounding environment and then it outputs information to an electronic device. The input for a sensor can be light, heat, movement, pressure and many other things. Robot Sensors have many applications which will be discussed below.

Sensors in robotics can be used to make robots more human-like, this is done by allowing the robots to see, touch, hear, and move. Sensors can be used in robots to collect data, this data can include quantities such as light, pressure, sound, and temperature. This collected data can then be used to improve the robot’s performance, so it performs more efficiently. To clarify one thing, robot sensors only collects data but the data is processed by the brain (CPU or microcontrollers) of the robot.

Examples of Sensors

There are many different sensors to choose from and each one performs a different task.

Sensor
An ultrasound sensor

One sensor which is used in robots is a light sensor. As the name states it is an electronic device which detects light.

A robot can use a light sensor to detect the amount of light in the surrounding area and this will allow it to know how dark or bright it is. Human sees things through their eyes, robots see things through their sensors such as cameras.

Sound Sensors

Another sensor which a robot can use is a sound sensor, at the name might suggest, this sensor detects the sound in the surrounding environment. A robot can use a sound sensor to perform certain tasks through the use of programming. An example of a sound sensor would be a microphone. A robot listens to your voice commands through the microphone and then performing the programmed action. So when you speak to a robot through a microphone, ask them to move forward. If the robot is programmed right and has the right parts, it should respond by moving forward.

Proximity Sensors

Proximity sensors can be used in robots to detect the presence of objects which are close and then these sensors will allow the robot to avoid the obstacle without the need for any physical contact. The robot can avoid this by either changing direction or stop. This type of sensor works by emitting an electromagnetic wave. Then analyzes for any interferences in the returned signal. This type of sensor would be ideal for robots which need to follow set routes. This will allow them to complete this task without any complications.

Contact Sensors

Contact sensors are sensors which need physical contact, unlike the above-mentioned proximity sensors which do not. These sensors require physical contact with other objects in order to trigger an action which will be performed by the robot. Some examples of contact sensors are push button switches, limit switches, and tactile bumper switches. Once physical contact is made, the robot can perform whatever action it has been programmed to do. This could include stopping, changing direction, producing a sound, or displaying a light.

To Conclude

Robot sensors are needed to give robots the ability to perform certain actions such as detecting the presence of an object and changing direction or being able to know how dark or bright it is in the area around them. Sensors are a key component when it comes to robots. Without them, robots would not be very useful in carrying out most tasks.

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Hamoudi
I’m an electrical engineer and a part-time blogger. I love to Play around with electronic parts (build small robots of any kind). I try to post information that can help others.

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