2.Robot environmental sensors
These sensors are used for monitoring environmental parameters like temperature, humidity, air quality, etc. Given below some of the environment parameters and robot sensors to measure those parameters.
- Temperature Sensors: LM 35, TMP36
- Humidity Sensors: DHT22
- Moisture sensor: FC-28
- Wind Speed/ Direction: Anemometer
- Air quality sensors: Grove – Gas Sensor(MQ2), Grove – Air Quality Sensor
- Radiation measurement sensors: Pocket Geiger Radiation Sensor
3.Motion detection sensors
Robot motion sensors are for detecting motion around the robot. There are several approaches for detecting motion around the robot using cameras and LIDARs, but there are few sensors are dedicated to this purpose. Here are a few sensors dedicated to motion sensing.
- Passive Infrared (PIR) Sensors: This sensor can emit electricity when an IR radiation hits on the sensor. Normally humans and animals can radiate IR radiation, so this sensor will trigger whenever an IR radiation hits on the sensor.
- Microwave Sensors: This sensor will send the microwave signals to the object, and receive the reflected signals. The analysis of the disturbance in the reflected signals can predict the motion of the object.
- Tomographic sensors: This sensor works on radio waves and it can detect the motion whenever the reflected waves get disturbed. This can cover a large area. These sensors are a bit expensive, normally used in the warehouse.
4.Pose estimation sensors
The pose estimation sensors in the robotic system can compute the position and orientation of a mobile robot. The pose of a robot is an important parameter for doing autonomous navigation and localization.
Here are some examples of pose estimation sensors.
4.1 Inertial Measurement Unit (IMU): IMU is a class of devices that reacts to or senses physical motion parameters, including acceleration, rotation, or change in position. Here are a few examples of IMU sensors
4.2 Global Position System (GPS): GPS is a famous satellite-based radio navigation system. It is mainly used in outdoor robot navigation. Most of the high-end GPS modules come with IMU for pose estimation. Here are a few famous GPS modules.
4.2 Indoor positioning sensor (Indoor GPS): GPS is mainly using for outdoor applications. There are indoor GPS sensors for indoor positioning applications too. The technology of positioning is different. These sensors are using beacons and color markers to navigate in an indoor environment. Here are a few famous indoor navigation sensors.
Amazing Post! The post sounds worthy with a good understanding of various types of sensors. Thanks for sharing.
Really informative article,i wanted to know are there any other types of sensors for various applications. If anyone’s interested in knowing more about sensors, you can check this article https://www.universal-robots.com/in/blog/types-of-sensors-in-robotics-universal-robots/