方向探測器 的英文怎麼說
中文拼音 [fāngxiàngtàncèqì]
方向探測器
英文
directional detector- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 探 : Ⅰ動詞1 (試圖發現) try to find out; explore; sound 2 (看望) call on; visit; see 3 (向前伸出)...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 方向 : direction; orientation
- 探測器 : finder; detector; seeker; sounder; probe
- 探測 : survey; search; sound; probe; sounding; detection; acquisition; reconnaissance; localization; fin...
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A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals
無線方向探測器一種無線電接收和指向天線系統,用來確定收到的無線電信號的角方向Based the eag - i etchant, a new etchant was developed, with which the etch pit pattern on ( 110 ), ( 111 ) and ( 100 ) faces of czt crystals can emerge immediately and effectually. this pager investigated relation between the ( 110 ) faces of cutting from crystals conveniently and accurately by laser reflex method. by the surface treatment, the nuclear radiation detector was fabricated with ( 110 ) of czt crystal and strong 241am responsibility was observed
在改變e _ ( ag )腐蝕液的配方的基礎上,研製了新的腐蝕液,可方便、快速、有效的顯示czt不同晶面的缺陷蝕坑形貌;研究了利用激光正反射法和自然解理的不同( 110 )面之間的關系,方便、快速、準確的進行定向切割晶體的方法;採用生長的czt單晶體自然解理的( 110 )面,經過表面處理,試制了探測器元件,對24lam有較強的響應。This thesis described fuel management system theory and system reliability design to set forth system fuel management general design thought. many technical details are discussed in the thesis such as : fuel quantity measurement, fuel mass character calculation, fuel density measurement, the accuracy of fuel quantity measurement, the optimum location of fuel gauge probes in the fuel tank. the author brings forward a new method which is based on the software of catia to calculate fuel mass character
本文對燃油管理系統的工作原理和可靠性設計等問題進行研究,以明晰燃油管理系統的總體設計思路;並對數字式燃油量測量、燃油質量特性計算、燃油密度測量、提高燃油量測量精度的措施、油箱油量傳感器安裝位置優化等具體技術展開研究;提出了一種基於catia軟體的燃油質量特性計算方法;論文最後探討了燃油管理系統的未來發展方向。In the retrofocus project, a retrofocus structure with two elements is used in the object lens to enlarge fov and back working distance, in the head of which the negative meniscus have the effect of balancing aberration and deviating rays like a prism. and a standard hyperhemisphere immersion lens with high refractive index is put behind the object lens to satisfy the receiving of a detector with smaller photosensitive
反遠距設計方案中物鏡採用二片式反遠距結構,增大了視場和后工作距離,彎月型負透鏡在前,具有平衡像差和棱鏡的偏向作用;物鏡後放置高折射率標準超半球型浸沒透鏡,滿足小光敏面探測器接收。One of the most important advancements recently for electroglas has been in gaining greater control over the z direction of the wafer prober, which affects the accuracy and impact force of touchdowns on wafers and enables their customers to effectively test even the most recent types of delicate devices
其中伊智公司最近最重要的一個進步就是:實現了對于晶圓探針臺z方向的更大程度的控制,這直接影響到探針接觸晶圓的精確性和沖擊力,為客戶提供了高效率的測試;即使是最新型的精細器件。The bandgap is found to broaden with increasing dopant concentration, and it is found that doping with al has the effect of shifting the optical absorption to the shorter wavelength, with both cases being attributed to the burstein - moss shift. we report a study on the fabrication and characterization of ultraviolet photodetectors based on zno : al films. using sol - gel technique, highly c - axis oriented zno films with 5 mol. %
為了研究zno : al薄膜在紫外光探測方面的性能,我們採用溶膠-凝膠旋塗法在si襯底上生長出具有高度c軸取向的zno : al薄膜,摻al濃度為5mol . % ,並以此作為有源區成功制備出了au / zno : al / au光電導型紫外探測器的原型器件,並對其i - v特性、紫外光響應和光致發光等方面的性能進行了研究。Because a conventional quantum well is needed to add in the novel structure, many experiments were made on conventional gaas / algaas qwips. the experiment results based on various test methods were well analyzed. the detectivity of conventional gaas / algaas qwips can be comparable to the current level gradually
由於改進結構中需要加入一常規量子阱,因此針對常規結構做了部分實驗,由多種測試方法得到大量實驗數據,並對其進行了全面的分析,常規gaas algaas量子阱紅外探測器的研製已經逐步趨向正常化。In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method
計算結果表明,從相對散射強度、同一方向上不同粒子散射的可區分程度來看,在散射式能見度探測儀器中,工作波長介於0 . 86 m 2 m ,探測角度選取前向25度40度時,探測的結果將會是比較理想的。第三部分中,使用超橢球方程來統一描述各種非球形粒子的形狀,然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外,在本文中還針對球形粒子的散射場提供了一種三維可視化方法,使對散射場強度的空間分佈的理解更加簡單,直觀。An instrument used to detect, measure, and determine the direction of small electric currents by means of mechanical effects produced by a coil in a magnetic field
檢流計,電流計一種儀器,用以探測、測量和測定微小電流方向,採用線圈在磁場中產生的機械效果的方法Virtual ultrasonic detector ( vud ) is the result of the combination of virtual instrument technique and ultrasonic detecting technique. vud is smarter, cheaper than traditional instruments and represents the direction of ultrasonic flaw detecting. this paper put forward a project developed on the base of second generation vud
超聲波探傷是應用廣泛的無損檢測方法之一,虛擬超聲波探傷儀是虛擬儀器概念在超聲波探傷領域的應用,不僅實現了傳統的模擬超聲波探傷儀的所有功能,而且對傳統探傷儀的原有功能進行了擴展,使其具有一定智能處理能力,是超聲波探傷技術的一個重要發展方向。The result shows that the solar radiation pressure moments play a mainly part. based on kalman filtering, three kinds of attitude determination algorithms were studied using the attitude sensor now available on the explorer : the first based on digital solar sensor ( dss ) and gyroscope when the star sensor is not available ; another based on dss, high - gain antenna ( hga ) and gyroscope when the explorer is in the earth - safe mode ; the third based on star sensor combined with gyroscope when the explorer is in the normal mode
針對配置了典型測量敏感器的深空探測器,基於擴展kalman濾波給出了其姿態確定的方法:針對星敏感器不可用情形,給出了使用太陽敏感器和速率陀螺定姿的濾波器演算法;針對安全模式下的對地穩定定向情形,給出了太陽敏感器和高增益天線融合速率陀螺信息的定姿演算法;針對正常巡航模式給出星敏感器和速率陀螺聯合定姿演算法。Then navigation asteroids are selected under a integral evaluation, the planning of the photoing sequence is handled with an improved genetic algorithm, along with a difference selection method which optimizes the ratio of navigation evaluation to resource consumption. a single axis randomized expanding algorithm is proposed to solve the large angle slew maneuvers planning problem. this algorithm randomly produces
對于自主探測器大角度機動規劃問題,本文提出單軸隨機擴展演算法,單軸隨機演算法在生成隨機節點過程中充分利用鄰近點的信息,把規劃問題構造空間的維數由3減少到2 ,從而減少問題求解的搜索空間,最後利用前向搜索的方法對規劃路徑進行優化。Scientists used wilkinson microwave anisotropy probe wmap to capture the cosmic portrait that reveals the afterglow of the big bang, i. e. the cosmic microwave background radiation
科學家利用威爾金森微波各向異性探測器wilkinson microwave anisotropy probe , wmap ,測量來自不同方向的宇宙微波背景輻射,展示了大爆炸后的餘輝。Using a dual tracer method as the optimal procedure, the radio - guided method allows us to confirm the complete harvest of sns by gamma probing, while the dye procedure enables us to perform real time observation of the lymphatic vessels
二元示蹤法是最目前理想的方案:輻射導向技術使我們能確信信號淋巴結已被探測器完全採集,而染色技術則使我們能夠對淋巴管進行實時觀測。This paper analyzed the data obtained at mcmurdo and thule neutron monitor ( nm ) stations and at guangzhou muon monitor station during the cme event in march 1991. the results show that in this event when the cme structure passed the earth, it was shifted to the earth ' s southern hemisphere and the strongest magnetic structure associated with the cme passing the earth at about 2000ut, march 24. 1991
我們利用mcmurdo和thule兩個臺站的銀河宇宙線強度的觀測數據和廣州多方向介子探測器記錄的宇宙線強度的數據分析了1991年3月cme的特徵,注意到cme是一定程度地偏向地球的南半球,並給出了cme中最強的磁場結構到達磁層的時間為1991年3月24日2000ut左右,這是過去沒有注意到的一個特徵。Both device ( l #. 2 # ) got good responsi tivi ty at bafld edge, and show a very abrupt cutoff for wave1e11gth 1onger than gaf ), which ind icate a good visble bl ifldness
1 # 、 l jgb2探測器均在帶邊峰有較強的光i咧應,並在長波方向陡峭截止: ,可見光光盲性很好。Second, we have proposed a reflective and coaxial configuration, in which the ultrasound beam and the incident laser are kept in the same axis direction. then a 1mhz ultrasound beam is focused into the simulating media to modulate and tag the scattering laser light passing through the ultrasonic focused zone
並且在綜合國內外各小組的實驗技術的優點的基礎上,創造性地提出聲光同軸反射式方案,即超聲和入射光同軸,並和探測器在同一方向上。Finally, based on the observability analysis and error analysis, two autonomous navigation schemes for encounter phase are respectively proposed in detail. monte carlo simulations are done for the two schemes. by analyzing and comparing the simulation results, we can get the conclusion that, under the accuracy conditions provided by the instruments in existence, the position estimation accuracy for probe encountering object celestial body is 0. 42km and 0. 04km, which demonstrate the feasibility of the two navigation schemes
最後,在可觀性分析和誤差分析的基礎上,分別給出基於圖像測量的自主導航方法和基於視線方向及夾角測量的自主導航方法,並對這兩種方法進行蒙特卡羅數值模擬,通過對模擬結果的分析和比較,在現有儀器的測量精度下,探測器在與目標天體交會時刻的位置估計精度分別是0 . 42km和0 . 04km ,由此表明兩種自主導航方案都是可行的。Under the the image motion and the sampling discrete conditions, the other more important result is : under the condition of engineering practice, the orientation between the target strip and the pixel row is parallel or not, the difference amount of mtf is smaller then 1 %, therefore in the engineering, the mtf of the orientation parallel can instead of the mtf of the corresponding case
Ccd探測器的動態成像過程的另一個重要結論是:在工程實際條件下,目標條帶與ccd探測器的像元行方向平行與否的兩種情況ccd探測器影像的基於模擬實驗及計算機模擬的ccd航天相機影像分辨力的研究mtf相差小於1 % ,因此工程應用中可以考慮採用方向平行時的mtf作為相應情況下的mtf值。This paper insert linear polarized flake in each optical channel to coding the different energy. then put the light come from the different channels together, the polarization of synthesized light would show the aoa. in order to identify the polarization direction, used polarization beamspliting prism
為了減少傳統陣列探測中探測器的數量,本論文在各陣列探測通道中加入偏振片,利用偏振片對其出射光束進行偏振方向編碼,然後使各通道出射光束疊加,從最後合光的偏振方向中得到入射光束的方位信息。分享友人