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Cuttable and wearable stress sensor and preparation method thereof

A strain sensor and strain sensing technology, applied in the field of sensors, can solve problems such as not being able to meet wearable conditions, and achieve rapid large-area preparation, easy operation, and good product performance

Inactive Publication Date: 2016-07-27
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional strain sensors are generally fixed on a hard substrate, which cannot meet the requirements of wearable conditions

Method used

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  • Cuttable and wearable stress sensor and preparation method thereof
  • Cuttable and wearable stress sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1: Sputter a 50-nanometer thick gold nanofilm by DC sputtering on the surface of a rectangular sandpaper with a width of 4.0 centimeters and a mesh number of 10,000. The microscopic appearance of the formed gold nanofilm is as follows: figure 1 shown.

[0028] Step 2: Use scissors to cut into a cuttable wearable strain sensor with a length of 5.0 cm and a width of 3.0 cm.

[0029] Step 3: Use silver glue to lead out the wires from both ends of the sandpaper obtained in step 2 along the length direction to obtain a wearable strain sensor that can be cut. The schematic diagram of its structure is as follows figure 2 shown.

[0030] The obtained wearable shearable strain sensor with a length of 5.0 cm and a width of 3.0 cm is fixed on the index finger with double-sided tape, and can be used for finger bending detection, which can meet the 0-10 Hz finger bending monitoring.

Embodiment 2

[0032] Step 1: Sputter a 30 nanometer thick gold nano film by direct current sputtering on the surface of a rectangular sandpaper with a width of 3.0 cm and a width of 1.0 cm and a mesh number of 1500.

[0033] Step 2: Use scissors to cut into a cuttable wearable strain sensor with a length of 3.0 cm and a width of 0.5 cm.

[0034] Step 3: Use silver glue to draw wires from both ends of the sandpaper obtained in step 2 along the length direction to obtain a wearable strain sensor that can be cut.

[0035] The obtained cutable wearable strain sensor with a length of 3.0 cm and a width of 0.5 cm is fixed at the crack of the door with double-sided tape, and can be used to detect the opening and closing angle of the door. The detected opening and closing angle is -179 to Between 179 degrees.

Embodiment 3

[0037] Step 1: Sputter a 45 nm thick gold nano film by magnetron sputtering on the surface of a rectangular sandpaper with a width of 2.0 cm and a width of 0.5 cm and a mesh number of 2000.

[0038] Step 2: Use scissors to cut into a cuttable wearable strain sensor with a length of 2.0 cm and a width of 0.25 cm.

[0039] Step 3: Use silver glue to draw wires from both ends of the sandpaper obtained in step 2 along the length direction to obtain a wearable strain sensor that can be cut.

[0040] The obtained cutable wearable strain sensor with a length of 2.0 cm and a width of 0.25 cm is fixed on the arm skin with double-sided adhesive, and can be used to detect arm muscle activity, which can meet the 0-20 Hz muscle movement monitoring.

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Abstract

The invention relates to a cuttable and wearable stress sensor and a preparation method thereof.The sensor comprises a flexible substrate, a flexible stress sensing thin film arranged on the flexible substrate, and wires arranged at the two ends of the flexible stress sensing thin film.The cuttable and wearable stress sensor has the advantages that compared with other sensors, the stress sensor is rapid in mass manufacturing, low in cost, good in product performance, easy and convenient to operate, cuttable and the like, the stress sensor can be worn on skin surface of a body, can be fixed to furniture, building structures and other objects for detecting stress, and has application prospects on the aspects of body motion detection, intelligent medical services and structural safety monitoring.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a shearable wearable strain sensor and a preparation method thereof. Background technique [0002] A wearable device is a computing device that can be installed on people, animals and objects, and can perceive, transmit and process information. Sensors are the core components of wearable devices. Sensors have wearable properties and have important potential for adaption in the fields of intelligent transportation, consumer electronics, medical equipment, smart home, industrial control, aviation and military industry. A strain sensor is a sensor that can be used to detect objects that are deformed by external forces or driven by themselves. With the continuous development of science and technology and the continuous improvement of people's material conditions, the demand for electronic devices of wearable sensors is increasing. There are a wide variety of wearable devices currently on the...

Claims

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Application Information

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IPC IPC(8): G01B7/16
CPCG01B7/18
Inventor 张跃廖新勤顾有松
Owner UNIV OF SCI & TECH BEIJING
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