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柵極腐蝕在線測(cè)量技術(shù)項(xiàng)目建議書-wenkub

2022-09-07 10:06:35 本頁(yè)面
 

【正文】 8) Sledge, Guides, Bearings, Gears etc. 拖運(yùn)器 , 說(shuō)明書 ,軸承 ,傳動(dòng) 裝置 9) Cables and connectors 電纜與連接器 10) Feedthroughs 饋入裝置 11) Electronics 電子儀器 12) Control Computer 控制計(jì)算機(jī) 13) Microswitch 微型開(kāi)關(guān) 14) Software 軟件 Literature overview 文獻(xiàn)查閱 A list of papers available in literature on the problem of erosion measurement is given below. 以下列出的是關(guān)于腐蝕測(cè)量的參考文獻(xiàn)。C ? 接口:快速以太網(wǎng)(最大值實(shí)時(shí) 50Hz) ? 種 I/O 數(shù)字分類:數(shù)字輸入(觸發(fā)),數(shù)字輸出(警報(bào)) ? 電源輸入: 10…36Vcc, 5VA ? 重量:約 ? 外形尺寸( mm): 85 x 175 x 107 mm ? 保護(hù): IP54 In Figure 3 a scheme of the infraredcamera system is displayed. The camera is contained in a sealed box, where atmospheric pressure is maintained (since the camera cannot operate in vacuum). 圖 3 為紅外相機(jī)系統(tǒng)示意圖,相機(jī)處于密封箱內(nèi),可保持大氣壓強(qiáng)(相機(jī)不能再真空環(huán)境工作)。C, 50Hz) ? 視場(chǎng)( FOV): 15176。C * Interface: Fast Ether (realtime 50Hz max) * 4 I/O digital ports: digital inputs (trigger), digital output (alarm) * Power Input : 10…36Vcc, 5VA * Weight : about kg * Dimensions (mm) : 85 x 175 x 107 mm * Protection : IP54 以下性能較高的相機(jī)作為可選項(xiàng)目提供: ? 傳感器:微測(cè)輻射熱 非冷卻 382x288pixels ? 光譜范圍: 8…14 微米 ? 測(cè)量范圍: 1) 0 200 176。 x 12176。C 2) 150 800 176。 Figure 2 Calibration images taken on a brand new grid 圖 2 全新網(wǎng)格的校準(zhǔn)圖像 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page: 6/31 InfraredCamera System for HET Temperature Measurement 用于 HET 溫度測(cè)量的紅外照相機(jī) By using an infrared camera it is possible to monitor the temperature of the thruster assembly during the test. Alta provides an advanced diagnostic system with the infrared camera installed right inside the vacuum chamber in order to have an optimal view of the item whose temperature has to be monitored. Besides, in this way the camera can be placed closer to the thruster (. an infrared camera placed outside the chamber and operating through one of the available viewports), resulting in a higher spatial resolution of the acquired images. 測(cè)試過(guò)程中推進(jìn)器部件的溫度可通過(guò)紅外照相機(jī)監(jiān)測(cè)。支持結(jié)構(gòu)主要由以下 分系統(tǒng) 夠成: ? Translation stage 移動(dòng)臺(tái) ? Rotation stage 旋轉(zhuǎn)臂 ? Sustaining arm 支撐臂 ? Protective box保護(hù)箱 The optical head consists of a long working distance objective with the following characteristics: 光學(xué)探頭具有長(zhǎng)工作 距離 物鏡,其特性如下 : Parameter 參數(shù) Unit 單位 Value 數(shù)值 Field of view 視場(chǎng) mm Resolution 分辨率 mm Depth of Field 景深 mm Working Distance 工作距離 mm 175 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page: 5/31 The measurement system allows the inspection of the acceleration grid (measurement of the hole diameter variation across a diameter of the grid). 系統(tǒng)也可進(jìn)行加速極檢測(cè)(通過(guò)一個(gè)網(wǎng)格的直徑測(cè)量孔徑的差異)。推進(jìn)器關(guān)閉后,遠(yuǎn)程顯微鏡系統(tǒng)移動(dòng)到推進(jìn)器前方對(duì) 腐蝕情況進(jìn)行測(cè)量。 Applicable documents 適用文件 The following is the plete list of documents to be considered applicable to this proposal: 下表列出了可適用于該投標(biāo)的所有文件: Acronyms and abbreviations 首字母縮略詞與縮寫詞 首字母縮略詞 /縮寫 Meaning 含義 ATP Authorization To Proceed 授權(quán)進(jìn)行 CO CloseOut 完結(jié) DAQ Data AcQuisition 數(shù)據(jù)采集 EP Electric Propulsion 電推進(jìn) EMS Erosion Measuring System 腐蝕測(cè)量系統(tǒng) FFP Firm Fixed Price 固定總價(jià) FMEA Failure Mode and Effects Analysis 失效模式與影響分析 FSO Full Scale Output 全量程輸出 GIE Gridded Ion Engine 柵極離子發(fā)動(dòng)機(jī) HET Hall Effect Thruster 霍爾效應(yīng)推進(jìn)器 HW Hardware 硬件 I/F,IF InterFace 接口 IR Infra Red 紅外線 LIP Lanzhou Institute of Physics 510 所 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page: 3/31 MAI Manufacturing,Assembly, Integration 制造,部裝,集成 NDA NonDisclosure Agreement 保密協(xié)議 QM Qualification Model 鑒定樣機(jī) RPA Retarding Potential Analyzer 減速電勢(shì)分析儀 SW Software 軟件 TBC To Be Confirmed/To be Clarified 留待確定 TBD To be Determined/Defined 留待決定 TC ThermoCouple 熱電偶 VDC Volt Direct Current 直流電壓 2 Introduction 簡(jiǎn)介 The present section describes the telemicroscopy and erosion facility implemented in Alta IV4 facility. 本章將介紹 Alta IV4 設(shè)備所采用的遠(yuǎn)程顯微鏡和腐蝕測(cè)量設(shè)備。 Telemicroscopy System for Gridded Ion Engines 柵極離子發(fā)動(dòng)機(jī)遠(yuǎn)程顯微鏡系統(tǒng) Alta provides an innovative diagnostics to measure the erosion of the grid holes in Gridded Ion Engines (GIE). Alta 為柵極離子發(fā)動(dòng)機(jī)網(wǎng)格空腐蝕情況的測(cè)量形成了一種新型的診斷方法。圖像采集時(shí)有四盞 LED 燈或激光線束為推進(jìn)器照明。 Parameter參數(shù) Unit 單位 Value 數(shù)值 GIE diameter range GIE直徑范圍 mm 50247。 Alta 提供的帶有紅外照相機(jī)的診斷系統(tǒng)科直接安裝于真空管內(nèi)部,以獲得被測(cè)物體的最佳視圖。C 3) 200 1000 176。 * Minimal focal distance: m * Target image: about 280 x 205 mm 1 m distance * Pixel measurement spot: mm 1 m distance * Different possible acquisition frequencies :selectable between 50Hz, 25Hz, ,…. * Measure uncertainty: 2K(T 100176。C ? 2) 150 800 176。 x 12176。 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page: 8/31 Figure 3: Infraredcamera diagnostic system 圖 3 紅外相機(jī)診斷系統(tǒng) The optical window of the protecting box is made of germanium, a material which is transparent to wavelengths in the range of interest for infrared measurements (8by a stepper motor) protects the germanium window from the sputtered particles that could impinge on it. Images acquired with the infrared camera are elaborated via a inhouse developed software (a sample screenshot is presented in Figure 4). 保護(hù)箱的光學(xué)窗口由鍺 制成 ,可透過(guò)紅外波長(zhǎng)測(cè)量范圍( 814μm)。 ? . Domonkos,. Gallimore, “Thermographic Investigation of mm diameter orificed hallow cathodes”, AIAA983793 ? S. Mazouffre, J. Perez Luna, D. Gawron, P. Echegut, M. Dudeck, “An infrared thermography study on the thermal load experienced by a high power Hall effect thruster”, 29th IEPC, Princeton, NJ, paper 63 (2020). ? R. E. Stevens, M. T. Domonkos, Methodology and Feasibility
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