Butt joint type stress sensor

Abstract

The invention relates to a butt joint type stress sensor, comprising two conductive fiber bundles, wherein each conductive fiber bundle comprises a bundle converging portion and a fluffy structure electrically connected with the bundle converging portion; and the fluffy structures of the two conductive fiber bundles are in butt joint with each other and form a butt joint structure, and the bundleconverging portions of the two conductive fiber bundles are electrically connected with an external circuit, respectively. The butt joint type stress sensor provided by the invention has the advantages of cleanability, difficulty to fall off, motion interference resistance, high resolution, high sensitivity and compatibility with the existing textile technology.

Description

technical field [0001] The invention relates to the technical field of sensor equipment, in particular to a butt joint stress sensor. Background technique [0002] With the development of science and technology and people's pursuit of a better life, wearable electronic products represented by products such as iwatch and millet bracelets have begun to emerge. These products not only change our way of life, but also affect our body and mind. Health has been effectively monitored. In wearable devices, the most critical flexible stress sensor related technologies are often mastered in industrially developed countries such as the United States, Japan, and Germany. [0003] At present, when photoelectric sensors are used, they will easily cause measurement errors due to factors such as light interference caused by the environment, the wearer's skin color, sweat, and fat thickness. On the other hand, wearable products currently on the market are mainly based on " Electronic produ...

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Problems solved by technology

[0005] Although the above-mentioned resistive stress sensor solves the problem that the photoelectric sensor is susceptible to interference by objective factors, it can also be bent and deformed, and is wearable, but it is still difficult to be compatible with traditional fabrics, especially it cannot be washed and recycled multiple times like clothes

If only the surface of the traditional fabric is modified with a functional layer, such as spraying a conductive material layer, etc., although the flexible stress sensing performance can be achieved, it can also be compatible with the fabric, but there are often problems during use or after multiple cleanings. The process is prone to the problem of peeling off of the functional film layer

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