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A conformal tactile sensor with improved sensing performance manufactured by 3D printing system

Date: November 22, 2023 (Source: Internet)

Conformal tactile sensor can simulate human tactile perception HCNR201-000E Sensor. It can sense and measure the shape, hardness, surface texture and other information of objects, and convert these information into digital signals for use by robots, intelligent devices and other systems. Traditional conformal tactile sensors are usually made of pressure sensitive materials, such as silica gel or elastomer. These materials will deform under external forces, resulting in changes in resistance, voltage or capacitance, which will reflect the shape and strength of the outside world.

However, the traditional conformal tactile sensor has some limitations, such as narrow sensing range, low sensitivity, and easy to be disturbed. In order to improve the sensing performance, we can use 3D printing technology to manufacture conformal tactile sensors. 3D printing technology is an advanced manufacturing technology that manufactures objects by stacking materials layer by layer. It is highly flexible and customizable, and can produce structures with complex shapes.

First, we can use 3D printing technology to produce conformal tactile sensors with specific shapes and structures. By adjusting the design parameters, such as the spacing, thickness and shape of the structure, different sensing ranges and sensitivities can be achieved. For example, structures with different densities and elasticity can be designed to simulate objects with different hardness.

Secondly, we can add micro nano structures on the surface of conformal tactile sensors to improve their sensing ability. Through 3D printing technology, the surface with micro touch vertex or nano texture can be manufactured. These micro nano structures can increase the contact area between the sensor and the object, and improve the sensor's perception of fine shape and texture.

In addition, 3D printing technology can be used to manufacture shape preserving tactile sensors with multi-layer structure. Multi functional sensors can be realized by using different materials at different levels. For example, the use of conductive materials in the upper layer and pressure sensitive materials in the lower layer can realize the simultaneous perception of touch and force.

Finally, 3D printing technology can also realize rapid manufacturing and customization of conformal tactile sensors. Traditional conformal tactile sensors need tedious processing and assembly, while the use of 3D printing technology can directly complete the manufacturing of sensors in one manufacturing process, greatly shortening the manufacturing cycle. At the same time, according to the actual application needs, the sensor can be customized to meet the needs of different application scenarios.

In conclusion, there is great potential to use 3D printing technology to manufacture conformal tactile sensors with improved sensing performance. By adjusting design parameters, adding micro/nano structures and manufacturing multi-layer structures, a wider sensing range, higher sensitivity and better customization capability can be achieved. This will provide more accurate, flexible and intelligent tactile perception for robots, intelligent devices and other systems.