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Attach-type radius of curvature measuring method

A technology of curvature radius and measurement method, which is applied in measurement devices, instruments, electrical devices, etc., to achieve the effects of stable performance, excellent repeatability, good practical value and application prospects

Inactive Publication Date: 2017-04-19
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the demand for real-time monitoring of the bending state of human limbs also poses new challenges to the functions of wearable smart products.

Method used

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  • Attach-type radius of curvature measuring method
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  • Attach-type radius of curvature measuring method

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Experimental program
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Effect test

Embodiment 1

[0019] The attached type curvature radius measurement method of embodiment 1, comprises the following steps:

[0020] (1) Prepare a flexible conductive composite film. The preparation process of the flexible conductive composite film is as follows: take a flat glass substrate of 4 cm × 4 cm, put it into an ultrasonic cleaner for 10 minutes and dry it, and then use a pipette gun to take an appropriate amount of The silver nanowire ethanol solution of uniformly dispersed silver nanowires is added dropwise to the silver nanowire ethanol solution on the glass substrate, and the spin coating is repeated 8 times, and the spin coating speed is 1500 rpm. After each spin coating, the glass substrate is placed on the Heating at 80 ℃ for 30 s and drying. After the spin coating was completed, the glass substrate was heat-treated at 200 ℃ for 20 min, and a conductive network of silver nanowires was prepared on the surface of the glass substrate, and its surface density was measured to be 69...

Embodiment 2

[0023] The attached type curvature radius measurement method of embodiment 2, comprises the following steps:

[0024] (1) Prepare a flexible conductive composite film. The preparation process of the flexible conductive composite film is as follows: take a flat glass substrate of 4 cm × 4 cm, put it into an ultrasonic cleaner for 10 minutes and dry it, and then use a pipette gun to take an appropriate amount of The silver nanowire ethanol solution of uniformly dispersed silver nanowires is added dropwise to the silver nanowire ethanol solution on the glass substrate, and the spin coating is repeated 10 times, and the spin coating speed is 1500 rpm. After each spin coating, the glass substrate is placed on the Heating at 80 ℃ for 30 s and drying. After the spin coating was completed, the glass substrate was heat-treated at 200 ℃ for 20 min, and the silver nanowire conductive network was prepared on the surface of the glass substrate, and its surface density was measured to be 88 ...

Embodiment 3

[0027] The attached type curvature radius measurement method of embodiment 3, comprises the following steps:

[0028](1) Prepare a flexible conductive composite film. The preparation process of the flexible conductive composite film is as follows: take a flat glass substrate of 4 cm × 4 cm, put it into an ultrasonic cleaner for 10 minutes and dry it, and then use a pipette gun to take an appropriate amount of The silver nanowire ethanol solution of uniformly dispersed silver nanowires is added dropwise to the silver nanowire ethanol solution on the glass substrate, and the spin coating is repeated 12 times, and the spin coating speed is 1500 rpm. After each spin coating, the glass substrate is placed on the Heating at 80 ℃ for 30 s and drying. After the spin coating was completed, the glass substrate was heat-treated at 200 ℃ for 20 min, and the conductive network of silver nanowires was prepared on the surface of the glass substrate, and its surface density was measured to be ...

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Abstract

The invention discloses an attach-type radius of curvature measuring method; the method can attach a flexible conductive composite film on a tested curved surface without being affected by external shocks and damaging the tested surface, thus simply and fast measuring the radius of curvature of the tested curved surface; in addition, the method can monitor an object curvature dynamic changing process in real time; the flexible conductive composite film is excellent in repeated performance, stable in performance after multi-time bending tests, so the radius of curvature measure result accuracy cannot be affected; according to test results, the resistance-radius of curvature relation curve relation curve can basically remain unchanged after the flexible conductive composite film is repeatedly bended for 500 times; the flexible conductive composite film is stable in performance after being repeatedly used for a half year, and the resistance rate of change-curvature relation curve can basically keep unchanged. The measuring method is simple and easy, and the employed flexible conductive composite film is simple in making process and low in cost, thus providing excellent practical values and application prospects.

Description

technical field [0001] The invention relates to a method for measuring the radius of curvature, in particular to an attached method for measuring the radius of curvature. Background technique [0002] Whether in industrial production or daily life, the measurement of the radius of curvature is a common and important task. For example, in microfabrication technology, it will involve the measurement of the small curvature radius of various curved workpieces. In the field of optical processing, such as microlenses, the radius of curvature is the main technical index to measure optical parts. In industrial production, the measurement methods of workpiece curvature radius are mainly divided into two categories: contact method and non-contact method. Among them, the contact method requires the probe to slide on the surface to be tested, which is easy to cause damage to the surface to be tested, and the measurement takes a long time, so it is not suitable for fast and large-scale...

Claims

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Application Information

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IPC IPC(8): G01B7/293
CPCG01B7/293
Inventor 宋伟杰钟露许炜徐峰沈文锋
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI