What are the tactile sensors of industrial robots? What is the function of the sensor?
Industrial robot tactile sensors can help industrial robots measure any physical interaction with their environment. The sensor can measure parameters related to sensor and object contact. Industrial robots also benefit from touch. Force and tactile sensors enable robots to manipulate objects with higher accuracy and sensitivity in environments with smaller structures.
The tactile sensor is designed according to the biological feeling of its touch, which can detect mechanical stimulation, stimulation temperature and pain. Tactile sensors will receive and respond to signals of force or physical contact.
There are several different tactile sensors in a range of applications, such as sensing normal pressure and dynamic tactile sensing. They are one of the commonly used sensors in robotics, including piezoelectricity and piezoresistance Capacitive and elastic type. This paper mainly introduces the functions and types of tactile sensors for industrial robots.
1. Optical tactile sensor: There are two types of optical tactile sensor: internal and external. In this type, the intensity of light is adjusted by moving the obstacle to the light path. It has the advantages of anti electromagnetic interference and high resolution. Low wiring is required and the electronics can be located away from the sensor.
2. Piezoelectric tactile sensor: When pressure is applied to the sensor element, the voltage effect on the sensor element is piezoelectric effect. The voltage is generated in direct proportion to the applied pressure. In this case, an external sensor is not required. The advantages of this sensor are durability and wide dynamic range. The pressure can be measured.
3. Resistance tactile sensor: the sensor works based on the resistance change between the conductor polymer and the electrode. This type of tactile sensor is widely used. When pressure is applied, the resistance of the conductive material changes. Then measure the resistance. The sensor has the advantages of high durability and good overload tolerance.
4. Capacitive tactile sensor: the capacitance change between two electrodes is used for capacitive sensor. This type of capacitive sensor will measure capacitance and change under applied pressure. The capacitance of parallel plate capacitor is related to the spacing and area of plates. The capacitor will vary according to the load. The sensor has the advantages of linear response and wide dynamic range.
5. Magnetic tactile sensor: magnetic tactile sensor adopts two methods, one is to measure the change of magnetic flux density, the other is the change of magnetic coupling deformation between windings. The sensor has the advantages of high sensitivity and no mechanical hysteresis.
Function of tactile sensor in industrial robot
In the operation technology of industrial robots, vision and touch are complementary just like in the human field. Industry experts predict that vision technology will soon be added to mainstream robot applications. Basically, industrial robot tactile sensor is a kind of touch sensor that can provide information related to its contact object. The information is about the shape, size and type of the touch object.
Industrial robot tactile sensor can detect the existence of objects. It also determines the shape of the part Position and orientation. The object in contact with the sensor is the pressure, so the pressure distribution can be determined. The device can complete the inspection of objects, such as texture monitoring Connector inspection or damage detection. Industrial robot tactile sensor can detect various stimuli, detect the existence of objects, and obtain tactile images. Tactile sensors have many sensitive components. With the help of these components, a tactile sensor can measure multiple attributes.
The functional components of the tactile sensor of an industrial robot include a microswitch that is sensitive to different ranges of motion. It is a touch sensor array, forming a larger sensor, called a touch sensor. A separate touch sensor will explain the physical contact between the robot finger and the textured surface. Once an industrial robot contacts an object, it sends a signal to the controller.
This paper mainly introduces the functions and types of tactile sensors for industrial robots. It can be seen from the full text that vision and touch are complementary modes in the human field of industrial robot operation technology. Industry experts predict that touch sensors will soon add visual technology to mainstream robot applications. Basically, industrial robot tactile sensor is a kind of touch sensor that can provide contact objects. The information transmitted is about the shape, size and type of the touch object.