The operation and construction of robots need a variety of robot sensors implantation. There is an extensive list of sensors essential for different kinds of robot construction. Every sensor is different in its characteristics and has various applications. In this article, you will know about a few of the many different robot sensors and their characteristics.
Light Robot Sensors
From its name, it says clearly that it is essential in detecting light. Its other characteristics include creating a voltage difference. The two widely used light sensors in robots are photovoltaic cells and photoresistor. These two robot sensors give a wide range of benefits, whereas phototransistors and phototubes are used in rare cases and situations.
Photoresistor sensors’ resistance functions differently with the variation in the light intensity. If the light is more, resistance will be less and vice versa. Most of the robots that are light dependent get equipped with photoresistors. The function of Photovoltaic cells converts the radiation of the sun into electrical power. If you are constructing a solar robot, then this sensor is the right choice for you.
Sound Robot Sensors
The job of a sound sensor is to detect sound and send a voltage in return. Applying this sensor to a simple robot will allow it to function on sounds. You can feed voice instructions for your robot to respond. Sound robot sensors do the same job as that of a microphone. Implantation of sound sensors is difficult as it requires amplification to give efficient functions.
If your robot has a job of transmitting temperature, then this sensor is a must. Temperature sensors are tiny and give a voltage difference in the detection of temperature change. Some of the most commonly used temperature robot sensors are TMP37, TMP36, TMP35, LM35, and LM34.
Contact sensors are often useful to give your robots an alarm system to avoid obstacles. Some types of contact sensors are the limit switch, tactile bumper and push switch. When the robot hits a barrier and the contact switch gets triggered, and the robot functions as programmed. The obstruction hit program might be anything such as turning or reversing. Contact sensors are excellent and easy for implementation, but it operates only after your robot hits the obstacle. Proximity sensor acts as a remedy to this problem.
It is a possible remedy to contact sensors. It is capable of detecting any obstacle that is nearby and operates as programmed. This robot sensor does not demand physical contact to respond. The sensor uses electromagnetic radiation to detect the interruption in signals. The most commonly used proximity sensors are ultrasonic sensors, a photoresistor, and Infrared Transceivers.
A photoresistor is a light sensor, but it is also possible to use it as a proximity sensor. When a robot comes close to an obstacle, the light intensity changes and the resistance also changes in the sensor. Ultrasonic sensors do the job by generating frequency waves to avoid the object. The Infrared LED transmits light for the job. If the light detects an obstacle, it turns back to avoid hitting the obstacle.
These are some of the robot sensor that play an essential role in robot construction. Every sensor has different functions on implantation. If you are fond of robots, then you might know about these minute details. If you are willing to make a robot, then make an in-depth study of different types of essential sensors.