方形探測器 的英文怎麼說
中文拼音 [fāngxíngtàncèqì]
方形探測器
英文
square 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
- 方形 : square; tetragonum
- 探測器 : finder; detector; seeker; sounder; probe
- 探測 : survey; search; sound; probe; sounding; detection; acquisition; reconnaissance; localization; fin...
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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。We select ni / cr alloy resistor as element together with ceramic embedding hearth ; select small flat - and - disc heat - even hubby ceramic sample holder, select ni / cr & ni / si thermoelectric couple ( type k ) as thermoscope with threads 0. 5 mm in diameter which is installed in the middle of the holders symmetrically ; select aluminum silicate fire - retardant fiber as materials for heat preservation ; design some hardware, for example temperature controller & transporter, signal amplifier etc ; design controlling curve to heat stove ; and introduce the method of least squares nonlinear regression and subsection function to deal with data. in order to obtain the reasonable operation conditions and operation curve, we have also done many theory analysis and experiment discussions
通過理論和試驗探討,選用鎳鉻合金電阻絲作為加熱元件,配以陶瓷質埋入式爐膛;選用陶瓷質小尺寸扁平?圓盤均熱塊體型樣品支持器;選用0 . 5mm絲徑鎳鉻?鎳硅熱電偶( k )作為測溫元件;熱電偶對稱安置在樣品支持器容器的中部;選用硅酸鋁耐火纖維作保溫材料;合理選用和設計了溫度控制器、溫度變送器、信號放大電路等硬體;採用升溫曲線來控制爐膛供熱過程;採用最小二乘法非線性回歸與分段函數相結合的曲線模擬方法,進行圖形處理。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。On the premise that the basal transducer layout was designed according to the requirements of deep - sea exploring surroundings and technology on the basis of the hardware structure and data collecting ways of interferometric sonar, the echo signal by energy relativity search is analyzed and calculated, altitude data of the tiny terrain on the seabed under real - time irradiation of ultrasonic is gained as to provide parameters of best cutting depth for intellectualization of the seabed mining vehicle timely and promptly
摘要在相干聲納硬體結構及數據採集方式的基礎上,結合具體的深海鈷結殼探測環境和技術要求,確定了換能器基本布局,探討了信號採集與處理方法,利用能量相關搜索法對回波信號進行分析和計算,得出超聲波實時照射下的海底表面微地形高程數據,為海底采礦車智能化開采提供實時、快速的最佳切削深度參數。Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment
在windowsnt系統環境和labview虛擬儀器技術開發平臺下,首次利用labview中的直線擬合模塊、指數擬合模塊以及多項式擬合模塊,設計了一種對實驗所得數據進行曲線擬合的方法,對三種擬合方法進行了比較,曲線擬合結果表明,多項式擬合方法相對于其它兩種擬合方法效果更好;根據曲線擬合的結果可從帶激勵線圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵電流時機械振動形成的等效輸入阻抗,並由此輸入阻抗確定了磁致伸縮換能器的諧振頻率及其電氣模擬網路參數;最後通過labview提供的網路功能,實現了基於web服務器的磁致伸縮換能器電氣模擬虛擬儀器測試系統,並探討了通過datasocket技術實現該系統網路化的方案。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。The traditional fire alarm systems are composed of a controller and detectors, and always transmit signals in the way of wireline transmission. however, the problems of long construction period, high rate of hardware fault and high cost of transmission line puzzle the administrators of fire control. but wireless communication in place of wireline communication can solve these problems effectively
傳統的集散式火災自動報警系統由火災報警控制器及火災探測裝置組成,其信號傳輸方面多採用有線傳輸,但是這種形式下的火災自動報警系統的施工工期長、硬體故障率高、傳輸線成本高等問題常常困擾著消防管理人員,而以無線通信代替有線通信卻能夠很好地解決這些問題。It makes full use of the terrain shelter and the characteristic of the earth ' s curvatures to improve viability of aircrafts
它充分利用地形遮蔽和地球曲率對敵方雷達等探測系統影響的特點,減小飛行器遭到打擊的機會,提高突防飛行器的生存概率。The thesis mainly investigated the bati _ 4o _ 9 ( bt _ 4 ), which has the lowest dielectric loss in ba - ti system, and ( ba, sr ) tio _ 3, the a position substitute compound of batio _ 3. the dielectric properties of bt _ 4 / bst with different preparation way and different elements doping were investigated. a archimedes method, xrd, sem, impedance analyzer, network analyzer and hakki - coleman method were used to investigate the density, phase formation, microstructure, dielectric properties and doping mechanisms
本論文以在ba - ti系中具有最低介電損耗的bati _ 4o _ 9 ( bt _ 4 )高頻介質陶瓷和batio _ 3a位sr取代而得的( ba , sr ) tio _ 3 ( bst )高頻介質陶瓷作為研究對象,對不同粉體制備方法制備的bt _ 4 / bst高頻電介質材料進行不同元素的摻雜,運用阿基米德方法, x射線衍射分析儀,掃描電子顯微鏡和阻抗分析儀,網路分析儀, hakki - coleman法等方法手段和測試儀器測試燒成樣品的密度,相組成情況,微觀結構和介電性能,探討造成介電性能起伏的形成機理。The main contributions are showing as follows : 1 based on the theory and specialty of four - element and infrared guidance system, a new method of calculating the relative location of the target and forming the instruction for the infrared missile to tracing the target is proposed in this thesis
本論文主要成果和創新性工作如下: 1 、針對紅外多元探測器的工作原理和結構特點,結合紅外製導導彈系統的結構、原理,提出了利用紅外多元探測器提供的信息解算目標位置並形成相應控制指令的方法。The measurement system can automatically control the movement of servo motor and communicate with vna through gpib bus to setup the measurement variable automatically, measure the phase of s parameter. it also can progress the measurement data on the background, display the results by graph data, store them in the data files
系統自動控制伺服電機的運行,對測試探頭完成指定的移動定位;通過gpib總線與矢量網路分析儀器通信,自動完成相關測量參數的設置以及s參數的相位測量;對測得的數據進行后臺處理,將結果以圖形、數據文件的方式顯示、保存。In non - destructive x - ray fluorescence analysis with thick target, correction method for difference in fluorescence intensity of elements due to sample shape and different distance to the source detector with yttrium as an outer mark element was studied
摘要在厚靶的非破壞性x射線螢光分析中,以釔做外標元素,研究了不同樣品形狀及與源、探測器距離不同時,引起接收到元素螢光強度差異的校正方法。In order to facilitate the advancement of micro - fabrication and micromachine technologies, development of measurement methods for both profile and dimension of micro - components are essential. one of the methods available for this is a small three - dimensional profile measurement apparatus with micro - probes. for such an apparatus, the probes must be fabricated with optimal shape for individual part measurement. in this research, micro - electrical discharge machining ( micro - edm ) which has extremely small machining force and is applicable for fabrication of various types of probes, is used for probe manufacturing. various types of probes which are installed to the small three dimensional profile measuring apparatus based on principle of scanning tunneling microscopy ( stm ) are fabricated by the proposed method. the probes fabricated have been successfully used for the measurement of several micro - parts and the results show the effectiveness of the proposed method
為了推動微加工和微機械技術的進步,微型零件輪廓和尺度測量方法的發展非常重要.可行方法之一就是使用帶微探頭的小型三維輪廓測量儀.這種儀器的探頭必須針對某個零件的測量,按照最佳外形製造.微放電加工有著極小加工力,可用於各種探頭的製造,本研究中用它進行探頭加工.用這種方法製造了多種探頭,將其裝在基於掃瞄隧道顯微技術( stm )的小型三維輪廓測量儀上.所製造的探頭已被成功地用於各種微元件測量,結果表明此方法可行In the optical fiber transmitting system, attenuation of fiber affects transmitting efficiency directly, the lower attenuation is very important because it affects the sensitivity frequently. the choice of join form and fixation method is also important for it will make large wastage. so we must pay attention to the join and fixation form when designing sensors
從分析中得出,在光纖傳輸系統中,光纖的衰減直接影響光纖的傳輸效率,低衰減特性非常重要,因為它常常會影響測量靈敏度;光纖與光探測器之間的連接形式和固定方法如果選擇不好也會造成較大損耗,為此在設計傳感器的同時,特別注意了與光纖的連接和固定方式。It shows excellent results to reveal the efficiency of the method, also prove the superior science research value of pgpr and give direction for consummating the apparatus next step
異常汽繞射波形得到有效的歸位,異常體空間位置與實際測量的結果基本一致並且處理速度快,不僅表明了該方法的有效性,證明相控陣探地雷達技術具有一定研究價值,也為儀器的進一步完善提供了思路。In the yield data acquire multi - line geometric in a radial pattern is adopted. before theoretical explanations about the non - uniqueness of inversions and the necessity of constrains are illustrated, the description of linear travel - time interpolation ( lti ) calculations, the derivation of jacobian linear equations, and the deductions of solving large sparse matrix equations, i. e. the lsqr iterations, are involved. in order to cope with the uncertainties in tomography, we reach several categories on constraint methods
對於野外數據採集採用多測線上放射狀布置檢波器;圍繞層析成像方法,文章分析了線性差值射線追蹤lti技術,推導出在矩形網格內速度以雙線性關系變化時方程組的解析式,進一步詳細探討方程組的求解方法,即最小平方正交分解法,並給出了迭代公式。分享友人