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首頁> 外文學(xué)位 >A polymer-based microfluidic device with electrolyte-enabled distributed transducers (EEDT) for distributed load detection.
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A polymer-based microfluidic device with electrolyte-enabled distributed transducers (EEDT) for distributed load detection.

機(jī)譯：一種基于聚合物的微流體設(shè)備，帶有電解質(zhì)啟用的分布式傳感器（EEDT），用于分布式負(fù)載檢測。

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摘要

The capability of detecting distributed static and dynamic loads is indispensable in a wide variety of applications, such as examining anatomical structures of biological tissues in tissue health analysis and minimally invasive surgery (MIS) and determining the texture of an object in robotics. This dissertation presents a comprehensive study of a polymer-based microfluidic device with electrolyte-enabled distributed transducers and demonstrates a new concept on using a single microfluidic device for distributed-load detection, which takes advantage of the low-cost microfluidic fabrication technology and the low modulus and biocompatibility of polymer. The core of the device is a single deformable polymer microstructure integrated with electrolyte-enabled transducers. While distributed loads are converted to different levels of deflections by the polymer microstructure, the deflections of the microstructure are translated to resistance changes by the five pairs of distributed transducers underneath the microstructure. Firstly, the design and working principle of the device is described. Then, due to its simple but efficient configuration, a standard fabrication process well developed for polydimethylsiloxane(PDMS)-based microfluidic devices is detailed and employed to fabricate this device. After that, the experimental setups for characterizing the device performance in static, step and sinusoidal inputs are illustrated. The experimental data then are collected and processed by using custom-built electronic circuits and custom LabVIEW/Matlab program to characterize the device performance. Lastly, the performance analysis of the device is conducted to obtain the performance parameters such as device sensitivity and load resolution. In summary, this polymer-based microfluidic device not only demonstrates the new concept and the capability of detecting distributed static and dynamic loads with a single device, with a thorough experimental study on the performance and characterization of this PDMS-based microfluidic device to correlate the device performance to its design parameters, but also the potential application of directly adopting this experimental method to measure the elasticity/viscoelasticity of a soft tissue.
機(jī)譯：在各種應(yīng)用中，檢測分布的靜態(tài)和動態(tài)負(fù)載的能力是必不可少的，例如在組織健康分析和微創(chuàng)手術(shù)（MIS）中檢查生物組織的解剖結(jié)構(gòu)，并在機(jī)器人技術(shù)中確定對象的紋理。本文對具有電解質(zhì)功能的分布式換能器的基于聚合物的微流體裝置進(jìn)行了全面的研究，并展示了使用單個微流體裝置進(jìn)行分布式負(fù)載檢測的新概念，該技術(shù)利用了低成本的微流體制造技術(shù)和低廉的制造成本。聚合物的模量和生物相容性。該設(shè)備的核心是與電解質(zhì)啟用的傳感器集成在一起的單個可變形聚合物微結(jié)構(gòu)。當(dāng)聚合物的微結(jié)構(gòu)將分布的載荷轉(zhuǎn)換為不同程度的撓度時，微結(jié)構(gòu)下方的五對分布式傳感器將微結(jié)構(gòu)的撓度轉(zhuǎn)換為電阻變化。首先，描述該裝置的設(shè)計(jì)和工作原理。然后，由于其簡單而有效的配置，詳細(xì)介紹了針對聚二甲基硅氧烷（PDMS）的微流體器件開發(fā)的標(biāo)準(zhǔn)制造工藝，并將其用于制造該器件。此后，說明了用于表征設(shè)備在靜態(tài)，步進(jìn)和正弦輸入中的性能的實(shí)驗(yàn)設(shè)置。然后，使用定制的電子電路和定制的LabVIEW / Matlab程序收集并處理實(shí)驗(yàn)數(shù)據(jù)，以表征設(shè)備性能。最后，對設(shè)備進(jìn)行性能分析以獲得性能參數(shù)，例如設(shè)備靈敏度和負(fù)載分辨率。綜上所述，這種基于聚合物的微流體設(shè)備不僅展示了新的概念以及使用單個設(shè)備檢測分布的靜態(tài)和動態(tài)載荷的能力，而且還對基于PDMS的微流體設(shè)備的性能和特性進(jìn)行了深入的實(shí)驗(yàn)研究，以關(guān)聯(lián)設(shè)備性能與其設(shè)計(jì)參數(shù)有關(guān)，但直接采用這種實(shí)驗(yàn)方法來測量軟組織的彈性/粘彈性的潛在應(yīng)用。

著錄項(xiàng)

  • 作者

    Cheng, Peng.;

  • 作者單位

    Old Dominion University.;

  • 授予單位 Old Dominion University.;
  • 學(xué)科 Engineering Mechanical.
  • 學(xué)位 Ph.D.
  • 年度 2013
  • 頁碼 153 p.
  • 總頁數(shù) 153
  • 原文格式 PDF
  • 正文語種 eng
  • 中圖分類 古生物學(xué);
  • 關(guān)鍵詞

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