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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 李坤彥(Kung-Yen Lee) | |
dc.contributor.author | Hui-Chia Yen | en |
dc.contributor.author | 嚴蕙嘉 | zh_TW |
dc.date.accessioned | 2021-06-16T05:08:31Z | - |
dc.date.available | 2017-08-21 | |
dc.date.copyright | 2014-08-21 | |
dc.date.issued | 2014 | |
dc.date.submitted | 2014-08-19 | |
dc.identifier.citation | [1] D. Wren, B. Barkdoll, R. Kuhnle, and R. Derrow, 'Field Techniques for Suspended-Sediment Measurement,' Journal of Hydraulic Engineering, vol. 126, pp. 97-104, 2000.
[2] M. T. C. VILA , 'New Methods to Measure Suspended Sediment Concentration,' ENGINYERIA HIDRA ULICA, MARITIMA I AMBIENTAL, 2009. [3] V. Stolojanu and A. Prakash, 'Characterization of slurry systems by ultrasonic techniques,' Chemical Engineering Journal, vol. 84, pp. 215-222, 2001. [4] 王昌杰主編,河流動力學,北京,人民交通出版社,2001。 [5] T. K. Edwards and G. D. Glysson, Field Methods for Measurement of Fluvial Sediment: U.S. Geological Survey, Techniques of Water-Resources Investigations, Book 3, Chapter C2, 1999. [6] 謝明霖,'遙測技術應用於懸浮泥砂濃度定量估算之研究' 博士論文,水利及海洋工程學系,國立成功大學,2009。 [7] D. Skoog, D. West, F. Holler, and S. Crouch, Fundamentals of analytical chemistry: Cengage Learning, 2013. [8] J. P. Downing, R. W. Sternberg, and C. R. B. Lister, 'New Instrumentation for the Investigation of Sediment Suspension Processes in the Shallow Marine Environment,' in Developments in Sedimentology. vol. 32, ed: Elsevier, pp. 19-34, 1981. [9] J. Phillips and D. Walling, 'Measurement in situ of the effective particle-size characteristics of fluvial suspended sediment by means of a field-portable laser backscatter probe: Some preliminary results,' Marine and Freshwater Research, vol. 46, pp. 349-357, 1995. [10] J. F. Lynch, J. D. Irish, C. R. Sherwood, and Y. C. Agrawal, 'Determining suspended sediment particle size information from acoustical and optical backscatter measurements,' Continental Shelf Research, vol. 14, pp. 1139-1165, 1994. [11] V. K. Choubey, 'The effect of properties of sediment type on the relationship between suspended sediment concentration and radiance,' Hydrological Sciences Journal, vol. 39, pp. 459-470, 1994. [12] J. R. McHenry, N. L. Coleman, J. C. Willis, A. C. Gill, O. W. Sansom, and B. R. Carroll, 'Effect of Concentration Gradients on the Performance of a Nuclear Sediment Concentration Gage,' Water Resources Research, vol. 6, pp. 538-548, 1970. [13] M. C. Larsen, C. Alamo, J. Gray, and W. Fletcher, 'Continuous automated sensing of streamflow density as a surrogate for suspended-sediment concentration sampling,' in Proceedings of the 7th Federal Interagency Sedimentation Conference, pp. 25-29, 2001. [14] C.-C. Chung and C.-P. Lin, 'High concentration suspended sediment measurements using time domain reflectometry,' Journal of Hydrology, vol. 401, pp. 134-144, 2011. [15] 許裕雄,'以結構振動觀測懸浮泥砂濃度' 博士論文,土木暨水利工程博士學位學程,逢甲大學,2011。 [16] 蔡明諺,'超音波測距' 學士專題,自動控制工程學系,逢甲大學,2006。 [17] 陳永增,鄧惠源,非破壞檢測,全華科技圖書股份有限公司,2004。 [18] Fast, Voltage-Out, DC to 440 MHz,95 dB Logarithmic Amplifier, AD8310 Datasheet. Analog Devices. [19] C. C. Sung, Y. J. Huang, J. S. Lai, and G. W. Hwang, 'Ultrasonic measurement of suspended sediment concentrations: an experimental validation of the approach using kaolin suspensions and reservoir sediments under variable thermal conditions,' Hydrological Processes, vol. 22, pp. 3149-3154, 2008. [20] 國立臺灣大學水工試驗所,'曾文水庫庫區泥砂濃度觀測站建置及量測研判分析計畫成果總報告' 國立臺灣大學,2013。 [21] 葉富貴,'沙腸管清淤作業於曾文水庫之可行性研究' 碩士論文,土木工程系,國立成功大學,2007。 [22] Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection, TPS73133 Datasheet. Texas Instruments. [23] 2.7 V to 5.25 V, Micropower, 2-Channel,125 kSPS, 12-Bit ADC in 8-Lead MSOP, AD7887 datasheet. Analog Devices. [24] StellarisR LM4F232 Evaluation Board, LM4F232 Evaluation Board User's Manual. Texas Instruments. [25] StellarisR LM4F232H5QD Microcontroller, LM4F232H5QD Datasheet. Texas Instruments. [26] 許永和,介面設計與實習: 使用LabVIEW,全華科技圖書股份有限公司,2006。 [27] RS-232 - 维基百科,自由的百科全書, Available: http://zh.wikipedia.org/wiki/RS-232,2014。 [28] ±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers, MAX3222E Datasheet. Maxim Integrated. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/55790 | - |
dc.description.abstract | 由於台灣河川湍急而陡峭,每當颱風季節,豪雨造成大量之泥砂沖刷而下,產生許多環境災害,若能即時監測水流中泥砂濃度分布狀態,將有助於進行相關措施之規劃,因此懸浮泥砂濃度資訊為瞭解水文環境特性之重要指標,而目前針對泥砂濃度量測方法之研究已有相當成果,惟各種方法仍有其水域或濃度範圍之限制,如傳統之取樣量測法具有較高之準確性,但卻耗費時間與人力,且無法長期監測,故本研究目的即利用超音波衰減法量測懸浮泥砂濃度,並以ARM 微控制器操控整體系統運作,發展一套即時監控之懸浮泥砂量測系統,並改善過去量測的缺點,提升對於水中泥砂分布監測與泥砂濃度推估之效能。
本論文藉由建立模擬現場之量測裝置,量測泥砂濃度與訊號衰減量之特性關係,實驗選用之懸浮泥砂種類分別為高嶺土及曾文水庫底泥,其架構採用一對超音波探頭搭配各自獨立之收發電路,探頭表面距離為20 cm,發射訊號頻率為1 MHz,而系統之主要控制核心為微控制器與人機介面,ARM 微控制器之功能為傳送控制發射端之訊號及資料傳輸,人機介面則為下達開始量測命令與即時顯示量測讀值並儲存等功能。 研究首先透過清水量測進行校正,並收集校正資訊做為轉換濃度之依據,實際量測待發射訊號穿透待測液後,訊號與懸浮粒子相互碰撞產生能量衰減,而懸浮粒子含量與接收訊號之衰減量成正向關係,藉此推估真實泥砂濃度。經由實驗與傳統烘乾法結果相互驗證,可具體顯示出不同懸浮材料及濃度與衰減量變化間相對應之趨勢關係,而本論文所設計之量測系統最大可量測濃度範圍為0 ~ 450,000 mg/L,遠高於過去研究之量測濃度限制,其濃度量測誤差量亦控制在6%內,在不同溫度下量測數值無顯著影響,此結果將有助於懸浮泥砂濃度量測系統之應用與發展。 | zh_TW |
dc.description.abstract | Because the rivers in Taiwan are short and steep, the great amount of sediment which scours through the rivers cause environmental disasters during the torrential rain season. Therefore, the suspended sediment concentration is the most important information for hydrological characteristics. Among of many methods used to measure suspended sediment concentrations, the bottle sampling is the most accurate method. However, time-consuming, working space limitation and non-continuous recording are disadvantages of the bottle sampling method. As the result, the development of the suspended sediment concentration measurement is the purpose of this study. ARM microcontroller is used to control the operation of the system to improve the performance of the sediment distribution monitoring and estimation of sediment concentration. Experiments were carried out by using two transducers with the operation frequency of 1 MHz. The distance between two transducers was set at 20 cm. A microcontroller was used to synchronize the transmitter and receiver, and the user interface was also developed to start the system, display and store the measured data. The relationship of the signal attenuation in dB scale and
concentration was established. Therefore, the concentrations could be determined by the measured signal attenuation. Experimental results show the concentration range from 0 mg/L to 450,000 mg/L can be determined and the measurement error can also be reduced to less than 6%. In addition, there is no significant impact on the measured data at different temperatures. Therefore, the proposed technique successfully detects suspended sediment concentration. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T05:08:31Z (GMT). No. of bitstreams: 1 ntu-103-R01525044-1.pdf: 5326720 bytes, checksum: 08aa56535ffa3d2efd36b36d55152b5b (MD5) Previous issue date: 2014 | en |
dc.description.tableofcontents | 口試委員會審定書............................................. .................... i
誌謝................................................... ...... ...... ...... ................ ii 中文摘要.................................................... ...... ................... iii 英文摘要.................................................. ...... ..................... iv 目錄............................................................ ...... ...... ...... ....... v 圖目錄................................................... ............................. viii 表目錄......................................... ....................................... xii 第一章 緒論............................................... ......................... 1 1.1 前言 ................................................................................ 1 1.2 研究目的與動機 ...................................... ...... ...... ......... 1 1.3 論文架構 ................ ...... ...... ...... .................................... 2 第二章 理論背景............................................ ...... ...... ...... .... 4 2.1 泥砂運移機制 .................................... ...... ...... ............... 4 2.2 懸浮泥砂量測方法之回顧 ............................ ...... ............. 6 2.2.1 人工取樣量測方式介紹 ................................. ...... ....... 7 2.2.2 間接儀器量測方式介紹 ............................. ...... ........... 8 2.2.3 各種泥砂量測方式優點及限制條件探討 ...................... 14 2.3 超音波懸浮泥砂濃度量測原理 ............................. ......... 17 2.3.1 超音波特性與應用 .................................... ...... ...... ... 17 2.3.2 超音波感測器結構 ................ ...... ...... ....................... 19 2.3.3 超音波濃度量測原理 ............................. ...... ...... ...... 22 第三章 實驗建置與研究方法........................... ...... .............. 26 3.1 實驗設備與佈置 .................................. ...... ...... ........... 26 3.1.1 實驗儀器設備 .................................... ...... ...... .......... 26 3.1.2 系統率定 ...................................... ...... ...... ...... …..... 29 3.1.3 實驗配置與條件 ................................ ...... ...... ............ 31 3.2 實驗流程規劃 .................................. ...... ...... ...... ......... 34 第四章 系統設計與開發................ ...... ...... ........................... 36 4.1 整體系統功能架構 .................................. ...... ...... ......... 36 4.2 系統硬體架構 ...................................... ...... ...... ............ 38 4.2.1 收發電路系統 ...................................... ...... ...... ...... .. 38 4.2.2 ARM 開發板之系統架構 .......................... ...... ............ 46 4.3 軟體架構 ......................... ...... ...... ...... ......................... 49 4.3.1 SPI 通訊協定 ................................ ...... ...... ............... 49 4.3.2 程式開發架構 .............................. ...... ...... ................ 51 4.4 人機介面設計 ................................. ...... ...... ................ 54 4.4.1 LabVIEW 介面建置環境...................... ...... ................. 54 4.4.2 UART 通訊介面 ............................... ...... ...... ........... 56 4.4.3 介面功能架構 ..................................... ...... ...... ....... 59 4.4.4 介面執行程序 ............................... ...... ...... ............. 62 第五章 實驗結果與分析................................ ...... ...... ....... 64 5.1 軟硬體測試結果 ........... ...... ...... ................................ 64 5.1.1 發射訊號 ..................................... ...... ...... ....... ...... 64 5.1.2 接收端之訊號擷取選擇 ........................ ...... ............ 65 5.2 實際量測結果 ...................................... ...... ...... ........ 71 5.2.1 系統校正 ..................................... ...... ...... ............. 71 5.2.2 水庫底泥的濃度量測 ............................. ...... .......... 74 5.2.3 高嶺土的濃度量測 .............................. ...... ............ 80 5.2.4 人機介面實測結果 ................................. ...... ......... 83 第六章 結論與未來工作........................... ...... .................. 85 6.1 結論 ............................................... ...... ...... ...... ..... 85 6.2 未來工作 ........................................ ...... ...... ............ 87 參考文獻................................................. ...... ...... ...... …. 88 | |
dc.language.iso | zh-TW | |
dc.title | ARM微處理器在超音波泥砂濃度偵測系統之應用 | zh_TW |
dc.title | Application of ARM Microcontroller in Ultrasonic Measurements for Suspended Sediment Concentrations | en |
dc.type | Thesis | |
dc.date.schoolyear | 102-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 宋家驥(Chia-Chi Sung),陳昭宏(Jau-Horng Chen) | |
dc.subject.keyword | 泥砂濃度,超音波,超音波衰減法,ARM 微控制器,人機介面, | zh_TW |
dc.subject.keyword | Suspended sediment concentration,Ultrasound,Ultrasound attenuation,ARM microcontroller,User interface, | en |
dc.relation.page | 90 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2014-08-19 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
顯示於系所單位: | 工程科學及海洋工程學系 |
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