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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 王兆麟 | |
dc.contributor.author | Chi-Hsuan Huang | en |
dc.contributor.author | 黃啟軒 | zh_TW |
dc.date.accessioned | 2021-05-20T20:54:18Z | - |
dc.date.available | 2011-08-04 | |
dc.date.available | 2021-05-20T20:54:18Z | - |
dc.date.copyright | 2011-08-04 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-01 | |
dc.identifier.citation | 1.Chuang SY, Lin LC, Hedman TP. The influence of exogenous cross-linking and compressive creep loading on intradiscal pressure. Biomech Model Mechanobiol 2010;9:533-8.
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/9991 | - |
dc.description.abstract | 簡介:椎間核壓力是脊椎生物力學研究上一重要的參數,透過椎間核壓力的量測,可以探討椎間盤的生物力學性質,而目前最主要的量測方式是用針型壓力感測器,穿刺椎間環來量測內部的椎間核壓力。目前雖已經成功開發出20 G(外徑0.9 mm)的針型感測器,但在製程上仍處於一個不穩定的階段,其中含失敗率高、靈敏度及非線性度不易控制等因素,而且也沒統一的標準來判斷其優劣,所以希望能在製程上做一探討,整理出一套有系統的標準製程。
材料與方法:首先會在20 G針頭上放電加工一凹槽,然後將應變規以應變規黏著劑平貼於凹槽內,在確定熱熔膠槍溫度上升至133℃後,以自製之夾具對熱熔膠做定量之出膠,以及應變規塗佈表面做定位之控制,最後以熱風槍做定時、定向的吹整,來達到製程的標準化;校正方面以靜脈帽之構造,設計一特殊結構將感測器密封於液壓裝置中,並使用材料測試機來做外力負載,而液壓裝置內部接有一標準壓力感測器,即可將此接受之訊號與針型感測器之訊號做校正分析。所校正出來的數值,會先以非線性度做一篩選,從其中選出小於10%的良品,再做0.5小時之0.4~0.7 MPa的連續負載,最後再篩選一次,將非線性度大於10%與負載前後校正常數差異大於10%的剃除,最後留下的即為成品。 結果:本研究比較了標準製程與手工製程的差異,在樣本數為標準製程及手工製程各25支的情況下,標準製程良率為72%,手工製程為24%;標準製程之校正常數標準差較手工製程為低,且根據以往經驗,標準製程的校正常數更能趨向其最適用值20 bar/V;另外標準製程所做出的成品相較於手工製程有較低的非線性度,顯示標準製程比起手工製程在製作上更能提供穩定且實用的方法。另外本研究也成功將應變規感測器尺寸縮小至22 G針頭,壓力測量範圍提升至3 MPa。 結論:本研究開發之新標準製程能改良過去手工製作之針型壓力感測器的靈敏度、非線性度及重複性。 | zh_TW |
dc.description.abstract | Introduction: Needle-type transducers are widely used in measuring the intradiscal pressure (IDP). The manufacturing procedures of in-house miniature needle-type transducer (20G) are not well established, resulting in the poor yielding rate and large variances of sensitivity and nonlinearity. The yielding rate of transducer also needs to be improved. In order to tackle these problems, the aim of this study is to develop a standard protocol of miniature needle-type IDP transducer manufacturing.
Material and method: We designed a standard procedure for transducer manufacturing. At first, the strain gage was attached to a fillister in a 20G needle with gage-specific glue. The fillister was created with a method of electric discharge. The surface of the strain gage was covered by a layer of melted adhesive at 133℃. The amount of adhesive was quantified by a self-designed device. The flatness of adhesive surface was control by fixing the air-blow direction and using time of a heat gun. Then the transducer was sealed in a hydraulic device for calibration. Only the transducers with non-linearity less than 10% were selected for the next-step sustainability test. The sustainability test included a 30 min cyclic loading with the loading magnitude ranging from 0.4~0.7 MPa. After that the transducer was calibrated again. The screening criteria for the sustainability test of the transducer were 1) the nonlinearity <10% and 2) the changing ratio of the calibration coefficients <10%. Result: This study compared the performances of needle transducers manufactured through standard protocol and manual protocol. Accordingly, fifty transducers were produced. A half of them were manufactured by the standard procedures (i.e. Standard group, n=25), while the other half was vice the versa (i.e. Manual group, n=25). The yielding rate was 72% for the standard group and 24% for the manual group. The average calibration coefficient of the standard group approached 20 bar / volt, which indicated proper sensitivity for IDP measurement. Compared to the manual group, the nonlinearity and standard deviation of calibration coefficient of the transducer were lower in the standard group. Conclusion: The standardization of manufacturing procedures improves the stability and robustness of the miniature IDP transducers which shows better nonlinearity, sensitivity and reproducibility. | en |
dc.description.provenance | Made available in DSpace on 2021-05-20T20:54:18Z (GMT). No. of bitstreams: 1 ntu-100-R98548021-1.pdf: 5979861 bytes, checksum: c6b7e79205d2f478ce3ee53b1c6d551e (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | 摘要 I
ABSTRACT II 誌謝 IV 目錄 VI 圖目錄 IX 表目錄 XI 第一章 緒論 1 1-1脊椎構造基本介紹 1 1-2椎間盤之病變 2 1-3椎間核壓力量測 3 1-4針型壓力感測器介紹與應用 5 1-5研究理論與假設 7 1-5-1應變規原理與介紹 7 1-5-2惠斯登電橋 8 1-6針型壓力感測器之現況 11 1-7研究目的 11 第二章 研究內容與方法 12 2-1製程設備 12 2-1-1塗膠平臺 12 2-1-2熱熔膠槍 13 2-1-3針固定座 14 2-1-4定位裝置 15 2-1-5熱熔膠定量裝置 16 2-1-6熱風槍支座 16 2-2校正設備 17 2-2-1訊號處理器 18 2-2-2訊號放大器 19 2-2-3訊號擷取卡 19 2-2-4液壓裝置 20 2-3測試設備 22 2-4製作流程 23 2-5製作步驟 24 2-5-1放電加工 24 2-5-2製作說明 25 2-6校正與測試 28 2-7感測器特性 29 2-7-1靈敏度 29 2-7-2靈敏度誤差 29 2-7-3非線性度 29 第三章 實驗結果 30 3-1標準製程與手工製程之差異 30 3-1-1良率比較 30 3-1-2校正常數比較 30 3-1-3非線性度比較 31 3-1-4製作時間比較 32 3-2針型壓力感測器22G之性質測試 32 3-2-1靜態校正曲線 32 3-2-2動態校正曲線 33 3-2-3極限壓力測試 34 3-2-4連續動態負載測試 34 3-2-5長時間負載測試 35 3-2-6重複性測試 36 3-2-7穩定性測試 36 第四章 討論 37 4-1製程討論 37 4-2 22G針型壓力感測器討論 37 第五章 結論與未來展望 39 5-1結論 39 5-2實驗限制 39 5-3未來展望 39 參考文獻 40 附錄一 42 附錄二 44 | |
dc.language.iso | zh-TW | |
dc.title | 椎間核壓力感測器之製程研究 | zh_TW |
dc.title | Study of Manufacturing of Miniature Intradiscal Pressure Transducers | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 趙振綱,林晉 | |
dc.subject.keyword | 椎間核壓力,壓力量測,針型壓力感測器,標準製程, | zh_TW |
dc.subject.keyword | Intradiscal pressure,Pressure measurement,Needle transducer,Standard procedure, | en |
dc.relation.page | 45 | |
dc.rights.note | 同意授權(全球公開) | |
dc.date.accepted | 2011-08-02 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 醫學工程學研究所 | zh_TW |
顯示於系所單位: | 醫學工程學研究所 |
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