Various sensors are used in industrial robots. Industrial robot sensors can enable robots to measure and understand the position, direction, distance, size, weight, acceleration, torque, brightness and other characteristics of the environment or objects, and help industrial robots to complete various tasks. According to the way of collecting information, common industrial robot sensors can be divided into the following types:
1. Light sensor
The light sensor can recognize the change of light or voltage, and then generate the corresponding voltage difference according to the change of light. Photovoltaic cells and photoresistors are commonly used as optical sensors for industrial robots.
2. Torque sensor
The torque sensor can identify the force exerted by the arm and end tool of the industrial robot, and provide a sense of touch for the industrial robot. The torque sensor of the general industrial robot will be installed between the industrial robot and the tool to monitor the force exerted by the robot on the tool.
3. Proximity sensor
The proximity sensor can detect objects without physical contact with them, and its working mode is relatively simple. The common proximity sensor is that the transmitter emits electromagnetic waves, and the receiver receives and analyzes the signal returned by the object. The common proximity sensors of industrial robots include infrared transceivers, which can identify obstacles and detect the presence of nearby objects through the reflection and capture of infrared beams.
4. Acceleration sensor
The acceleration sensor can measure acceleration and inclination through dynamic and static force. By measuring these two forces, the robot can determine the acceleration required for moving objects and determine the balance of the robot.