Conductive-rubber-based flexible array clip pressure sensor and manufacturing method

Abstract

The invention relates to a conductive-rubber-based flexible array clip pressure sensor and a manufacturing method. In the conductive-rubber-based flexible array clip pressure sensor, upper and lower electrode wires and electrode rings are printed on an upper electrode layer and an electrode layer; the electrode ring is provided with a rubber voltage-sensitive unit; a silicon rubber liner is arranged at the position where sensitive elements do not exist; the rubber voltage-sensitive unit is nested into the silicon rubber liner; the upper and lower electrode wires are led and connected to an electrode lead-out head; the upper and lower electrode layers are sealed by high viscose; and when force acts on the rubber voltage-sensitive unit, the rubber voltage-sensitive unit is compressed and deformed due to stress, so a resistance value of the rubber voltage-sensitive unit is changed, and pressure or concentrated loads at the point contact position can be reflected according to the variablequantity of the resistance value on the rubber voltage-sensitive unit relative to an initial resistance value. By a manufacturing method based on a silk-screen printing process, the flexible array clip sensor has the characteristics of light weight, low cost, simple manufacturing and mass production, and is long in service life and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of sensing in medical instruments, in particular to a flexible array chip pressure sensor based on conductive rubber and a manufacturing method. Background technique [0002] As an important element for sensing and acquiring external information, sensors have long been closely related to our daily life and industrial production. In practical applications, there are more and more demands for flexible sensors that can be pasted on any curved surface. Some foreign research institutes started research on this kind of flexible sensor as early as the 1980s, and applied it in biomedicine, robotics, military and other fields. Tactile sense is a necessary medium for robots to directly interact with the external environment. Flexible tactile sensors can simulate human senses and are highly valued in the field of robot sensing. With the development of MEMS technology, if the fabrication of flexible sensors and the fa...

AI Technical Summary

Problems solved by technology

The structure of the existing flexible array chip pressure sensor is relatively complicated, wherein the outer cover layer and the electrode layer are separated as two layers, and the electrode layer is a traditional circuit board, which has poor flexibility; the flexible array chip pressure sensor The structure of the sensor is relatively simple, and the cover layer and the electrode layer are combined into one. The method of printing the conductive paste on the PET film improves the flexibility. For the existing flexible array chip pressure sensor, it has achieved phased progress

Moreover, the traditional pressure sensor cannot detect the pressure between large-area contact objects, and has a series of disadvantages such as large volume, heavy weight, inconvenient operation, and high manufacturing cost.

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