【正文】 User Manual. o Being realized with easiness of use as key requirement. EMS 配有的控制軟件應(yīng)： ? 可在大氣壓下和真空中進(jìn)行初始安裝（ “校準(zhǔn) ”）。最高電壓約為 1500V，最大電流 12A，電 組件應(yīng)至少能承受 2500V的電壓。 Figure 1 Top view: the two DN100 flanges in the red box can be used by ALTA 圖 1 頂視圖： ALTA可利用紅框內(nèi)的 2 個(gè) DN100 凸緣 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page： 12/31 1 液氮儲(chǔ)供系統(tǒng) 2 副艙真空容器 3 推力器熱控裝置 4 安裝電源專用副艙 5 主艙真空容器 6 真空抽氣系統(tǒng) 7 地面 氙供氣單元 8 離子推力器地面供電電源 9 電推進(jìn)控制系統(tǒng) 10 真空抽氣和推力器溫控控制系統(tǒng) 11 冷卻水系統(tǒng) 12 氣動(dòng)元件供氣系統(tǒng) Figure 2 Side view: the three DN100 flanges in the red box can be used by ALTA 圖 2 側(cè)視圖： ALTA可利用紅框內(nèi)的 3 個(gè) DN100 凸緣 13 液氮進(jìn)出接口 14 推力器安裝架 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page： 13/31 15 主艙電、氣接口 16 主艙真空容器 17 真空規(guī)接口 18 鞍座 19 離子束靶 R09 – Mechanical interface with the vacuum chamber 與真空罐機(jī)械接口 Alta should clarify the required mechanical interface between the EMS and the vacuum facility. Alta 確定 EMS 與真空罐之間的機(jī)械接口。 o Available power: 220 V AC 真空度： 1x103 Pa to1x102 Pa； 潔凈度：實(shí)驗(yàn)室； 溫度： 040 176。C。 o Cleanliness level: laboratory。 R03 – Secondary erosion measurement 二次腐蝕測量 Pitgroove erosion should also be measured, if possible (if patible with resolution and illumination). 如可以也應(yīng)測量坑槽腐蝕 （如果符合分辨率與光照條件） R04 – Additional Feature 附加特性 If possible, the ESM software should allow a posteriori reconstruction of a 3D image from two separate pictures taken with slightly different angle of the camera(s). 如果可以， ESM軟件通過兩張角度略有差別的圖像可后期合成 3D 圖像。 Detailed customer requirements 客戶詳細(xì)要求 R01 Target thruster grid dimensions 目標(biāo)推進(jìn)器柵極尺寸 The erosion measure should be made on grids up to 300 mm in diameter. The grids will not be plane, but curved. 對直徑達(dá) 300mm的柵極進(jìn)行腐蝕測量，柵極不非平面而是曲面。 ? . 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 of InSitu Erosion Measurements in Carbon Based Ion Thruster Grids by Laser Induced Fluorescence, IEPC01311 ? M. T. Domonkos, R. E. Stevens, Assessment of Spectroscopic, RealTime Ion Thruster Grid ErosionRate Measurements, AIAA 20203815, 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2020. ? E. J. Beiting, “Precision Measurements of IonEngine Grids for Erosion Studies” ? J. E. Polk, J .R. Anderson, J. R. Brophy,V. K. Rawlin, M. J. Patterson, J. Sovey, “In Situ, TimeResolved ? Accelerator Grid Erosion Measurements in the NSTAR 8000 Hour Ion Engine Wear Test “, AIAA 971114 ? . Mason, . Jankovsky, “1000 hours of testing on a 10 kilowatt Hall effect thruster “, AIAA20203773, ? 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, , 2020 ? . Jankovsky, “Preliminary Evaluation of a 10 kW Hall Thruster “, AIAA990456 ? J. Tomaszewski. R. Branam, W. Hargus, “Characterization of a Hall Effect Thruster Using Thermographic Imaging “ . AIAA20200584 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page： 10/31 3 Customer requirements 用戶需求 Introduction 引文 The Lanzhou Institute of Physics aims at the measurement of the grid erosion produced on 1 kWclass ion engines to be placed in a dedicated new vacuum chamber and subjected to long duration tests. Accuracy, easiness of use, and reliability of the system are the key requirements that will be detailed in the next sections. 510 所旨在測量其專有的新型真空灌內(nèi) 1kW 級(jí)等離子發(fā)動(dòng)機(jī)所產(chǎn)生的柵極腐蝕，并進(jìn)行長期測試。紅外相機(jī)采集的圖像通過自主研制軟件分析（圖 4是該軟件的一個(gè)截圖）。 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 ，可透過紅外波長測量范圍（ 814μm）。C）或 2%，單位 ℃ ? 可重復(fù)性：顯示的 1% ? 測量距離： 75mm 到無限遠(yuǎn) ? 工作溫度： 10…50 176。 x 12176。C ? 溫度分變率： 80 mK (range 1, 30 176。C ? 2) 150 800 176。C 北京和德宇航技術(shù)有限公司 China Head Aerospace Technology Co. Page： 7/31 * Repeatability: 1% of the reading * Measuring distance : from 75 cm to “infinity” * Working temperature : 10…50 176。 * 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, 50Hz) * Field of View (FOV) : 15176。C 3) 200 1000 176。 The infrared camera has the following characteristics: 紅外相機(jī)具有以下特性： Parameter參數(shù) Value 數(shù)值 Measuring Range 測量范圍 0800℃ Error 誤差 2% Temperature Resolution溫度分辨率 ℃ CCD size CCD 尺寸 384 X 288 px Wavelength Range 波長范圍 814 μm As an option, the following more performing camera could be provided: * Sensor : microbolometric NONcooled 384 x 288 pixels * Spectral range : 8…14 micron * Measurement Range(s) : 1) 0 200 176。 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，以獲得被測物體的最佳視圖。連續(xù)測量的最大優(yōu)勢不僅可以記錄工作數(shù)小時(shí)后的整體腐蝕情況，也可以記