發(fā)布時(shí)間：2018-06-04 15:36

  本文選題：PVDF薄膜 + 傳感器��； 參考：《天津工業(yè)大學(xué)》2017年碩士論文

【摘要】：聚偏氟乙烯(PVDF)壓電薄膜具有柔軟質(zhì)輕、可加工性能好、頻響寬、靈敏度高、耐腐蝕性好等優(yōu)點(diǎn),加上其優(yōu)越的壓電性能使得PVDF壓電傳感元件特別適合應(yīng)用在服裝中,用于監(jiān)測(cè)人體生理及運(yùn)動(dòng)狀態(tài)。肘關(guān)節(jié)是人體活動(dòng)的重要部位,相對(duì)于身體其他關(guān)節(jié)來(lái)說(shuō),肘關(guān)節(jié)活動(dòng)范圍比較大,更容易受到損傷,通過對(duì)人體肘關(guān)節(jié)運(yùn)動(dòng)特征監(jiān)測(cè),改變運(yùn)動(dòng)的節(jié)奏感和運(yùn)動(dòng)方式,尋找最佳的運(yùn)動(dòng)姿態(tài),可較大程度的降低肘關(guān)節(jié)損傷。本課題針對(duì)當(dāng)今服裝的智能化發(fā)展趨勢(shì),結(jié)合國(guó)內(nèi)外傳感器領(lǐng)域炙手可熱的PVDF壓電薄膜,自行研制出一種簡(jiǎn)易的可裝載于服裝中的PVDF壓電傳感元件。課題詳細(xì)的闡述了 PVDF壓電傳感器的研制及性能的測(cè)試,并應(yīng)用于人體肘關(guān)節(jié)監(jiān)測(cè)人體活動(dòng)。主要工作如下:(1)探究上海3F公司FR904和美國(guó)蘇威21216兩種型號(hào)的PVDF原材料的性能差異。(2)通過流延法和靜電紡絲方法制備PVDF壓電薄膜,探究?jī)煞N不同方法制備的薄膜的性能差異,發(fā)現(xiàn)靜電紡纖維膜具有較強(qiáng)的壓電性能,將不同濃度的PVDF纖維膜通過電極選擇、形狀確定及裁剪、焊接導(dǎo)線、邊緣處理、覆蓋電極幾個(gè)步驟制備成壓電傳感器感芯。并通過自己搭建的壓電測(cè)試平臺(tái)對(duì)PVDF壓電性能及靈敏度進(jìn)行測(cè)試。結(jié)果發(fā)現(xiàn)濃度為10%的PVDF傳感器壓電性能優(yōu)異。(3)將雙層PVDF纖維膜串聯(lián)制成傳感器感芯,測(cè)試結(jié)果表明其壓電性能是單層傳感器感芯的兩倍。(4)采用經(jīng)編網(wǎng)眼織物制成肘部服裝,將雙層PVDF纖維膜傳感器鑲嵌于肘部服裝內(nèi),測(cè)試手臂在不同彎曲狀態(tài)下的信號(hào)輸出情況。
[Abstract]:Polyvinylidene fluoride (PVDF) piezoelectric film has the advantages of soft and light weight, good processability, wide frequency response, high sensitivity, good corrosion resistance and so on. In addition, its excellent piezoelectric properties make PVDF piezoelectric sensor especially suitable for application in clothing. Used to monitor physiology and movement of human body. Elbow joint is an important part of human body activity. Compared with other joints of the body, elbow joint has a relatively large range of activities and is more vulnerable to injury. By monitoring the movement characteristics of human elbow joint, the rhythm and mode of movement can be changed. Looking for the best movement posture can reduce the elbow joint injury to a great extent. In view of the trend of the intelligent development of clothing and the hot PVDF piezoelectric film in the field of sensors at home and abroad, a simple PVDF piezoelectric sensing element which can be loaded in clothing has been developed in this paper. The development and performance test of PVDF piezoelectric sensor are described in detail, and it is applied to human elbow joint monitoring. The main work is as follows: (1) to explore the difference in the properties of PVDF raw materials of Shanghai 3F Company FR904 and Suwei 21216) PVDF piezoelectric thin films were prepared by casting method and electrostatic spinning method, and the difference of properties between the two kinds of films prepared by different methods was explored. It is found that the electrospun fiber film has strong piezoelectric properties. The piezoelectric sensor core is made from different concentration of PVDF fiber film through electrode selection, shape determination and cutting, welding wire, edge treatment and electrode covering. The piezoelectric properties and sensitivity of PVDF are tested by a piezoelectric test platform. The results showed that 10% PVDF sensor had excellent piezoelectric performance. The sensor core was made of double-layer PVDF fiber film in series. The results showed that the piezoelectric performance of the sensor was twice as high as that of single-layer sensor core. The double layer PVDF fiber film sensor was embedded in the elbow garment to test the signal output of the arm in different bending states.
【學(xué)位授予單位】：天津工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TS941.4;TP212

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本文編號(hào)：1977904