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A flexible wearable sweat sensor and sweat analysis method and application

A sensor and micro-sensor technology, applied in the field of flexible wearable sweat sensor, can solve the problems of small amount of data, long distance between data points, and difficulty in collecting multi-point data, and achieve low cost, high accuracy, and wide application range Effect

Pending Publication Date: 2020-07-24
BEIJING SPORT UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Testing the amount of sweat and sweat rate can accurately assess the hydration status and thermal regulation status of the human body during exercise. However, this type of flexible wearable sweat sensor has many shortcomings: it is difficult to collect data from multiple points, not data points Too far apart results in a small amount of data, that is, only the average value over a period of time can be obtained
Therefore, there is an urgent need in the market for a flexible wearable sweat sensor that can test the information of human sweat loss in real time to reflect the physiological state of the human body, and at the same time provide users with scientific hydration strategies in a timely manner.

Method used

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  • A flexible wearable sweat sensor and sweat analysis method and application
  • A flexible wearable sweat sensor and sweat analysis method and application
  • A flexible wearable sweat sensor and sweat analysis method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0045] On the basis of the above structure, in this embodiment, the sweat guide layer 3 includes a sweat guide body 31, and the sweat guide body 31 is provided with a sweat duct 32, and the sweat duct 32 is formed on the sweat guide body by laser etching and PDMS casting. 31, the measurement layer 4 measures the volume of sweat in the sweat duct 32; the sweat guide body 31 is respectively provided with a sweat inlet 321 and a sweat outlet 322, and the sweat inlet 321 and the sweat outlet 322 pass through the methods that those skilled in the art can think of, such as pipelines. communicate with both ends of the sweat duct 32 respectively. In the process of human body movement, sweat is collected by the adsorption layer 1, and then reaches the sweat inlet 321 after passing through the fixed layer 2. The sweat enters the sweat conduit 32 from the sweat inlet 321, flows in the sweat conduit 32, and finally flows out from the sweat outlet 322; During the flow of sweat, the measure...

Embodiment 2

[0051] On the basis of Embodiment 1, in this embodiment, the measurement layer 4 includes a measurement body 41 and a microsensor 42. The measurement body 41 is fixedly installed with an electrode 411 matching the sweat conduit 32 through micro-electromechanical processing technology, and the electrode 411 is evenly A plurality of microelectrodes 412 are fixedly installed at intervals, and each microelectrode 412 is integrally formed with the electrode 411, and one end of each microelectrode 412 extends into the sweat conduit 32; 413 is connected to record the electrical signal generated when sweat passes through the sweat conduit 32 and the microelectrode 412 forms a microcircuit. During the process of sweat flowing in the sweat duct 32, the sweat in the sweat duct 32 forms a closed loop with the microelectrode 412 and the microsensor 42, and the microsensor 42 records the electrical signal in the closed loop, and tests the sweat collected in the sweat duct 32. The volume is ...

Embodiment 3

[0058] On the basis of the second embodiment, in this embodiment, the micro sensor 42 includes a micro sensor module 421 , the micro sensor module 421 is connected with a cable interface 422 , and the cable interface 422 is connected with the electrode cable 413 . During the sweat analysis process, the micro-sensing module 421 records the electrical signal generated when the sweat passes through the sweat duct 32 and forms a micro-circuit with the micro-electrode 412, so as to calculate the volume of sweat, and the measurement is convenient and quick.

[0059] In addition, the micro-sensing module 421 only applies voltage to the two micro-electrodes 412 directly adjacent to the front edge of the collected sweat in the sweat duct 32, so as to prolong the battery life of the flexible wearable sweat sensor as much as possible.

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Abstract

The invention relates to a flexible wearable sweat sensor and sweat analysis method and application thereof. The sensor includes an adsorption layer, a fixing layer, a sweat conducting layer, and a measurement layer stacked from bottom to top. The adsorption layer is adsorbed on the human skin and used to collect sweat. The fixing layer is detachably installed on the adsorption layer, and the sweat conducting layer is fixed on the fixing layer. After the sweat passes through the fixing layer, the sweat is guided by the sweat conducting layer. The measuring layer is fixedly installed on the sweat conducting layer to measure the amount of human sweat. The sweat sensor includes the method and application of sweat sensor to analyze sweat. The beneficial effect of the present invention is thatthe sweat sensor is made of flexible materials, can be in good affinity with human skin, can also adapt to the anatomical structure of human limbs with curvature, and can resist various deformations caused by human movement. In addition, the sweat sensor has a waterproof function, can be adjusted flexibly according to user needs, can be applied to different environments and different human bodies,and has strong applicability. Moreover, the sweat sensor can be reused and the cost is low.

Description

technical field [0001] The invention relates to the technical field of sweat analysis, in particular to a flexible wearable sweat sensor and a sweat analysis method and application thereof. Background technique [0002] The use of wearable devices to test various indicators of the human body to realize the diagnosis of human diseases and the monitoring of athletes' sports performance has attracted widespread attention in recent years, and wearable devices have also developed to a certain extent. Analyzing athletes' physiological, biochemical and kinematic indicators through wearable equipment is also the most common method to evaluate athletes' sports performance and motor function. Restricting human physical activity even makes some tests only available in laboratories. This has caused a lot of inconvenience to athletes' sports performance testing, sports injury and sports rehabilitation process evaluation. On the other hand, the existing wearable devices focus on the mon...

Claims

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Application Information

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IPC IPC(8): A61B5/145A61B10/00
CPCA61B5/14517A61B5/6801A61B10/0064
Inventor 边升太叶舜刘昊杨
Owner BEIJING SPORT UNIV
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