儀器變量 的英文怎麼說
中文拼音 [yíqìbiànliáng]
儀器變量
英文
instrumental variables-
When measuring the magneto performance parameter , we find that the instrument which use to measure voltage and current is still the simple voltmeter and amperemeter in the national standard , and the form of wave that we observed is anomaly. based on the measure principles, it obviously ca n ' t be used to do quantitative analysis ; because the discharge process of ignition system is quite complex, accompanies with very strong electromagnetism interference, and the ignition current and voltage are variable , it make the measure of ignition energy become a difficult thing of ignition system performance detection
在磁電機常規測量時,發現在國家標準中用於測量電壓、電流的儀器仍然是普通的電壓、電流表,而觀測到的波形多為不規則的形狀,根據測量原理,顯然不能用其來做定量的分析;由於點火系統的放電過程比較復雜,伴隨著很強的電磁干擾,點火電流、點火電壓都是變量,使得點火能量的測量成為點火系統性能測試的一個難點。Ch400 transformer coulometer can be widely applied in test on production line of small manufacturer of transformer or rectifier power or in labs
Ch400變壓器電量測量儀系列可廣泛用於各種小型變壓器或整流器電源等廠家的生產流水線測試,實驗室試品試驗等場合。Main operating companies : one, quality brands imported power plant auxiliary equipment : including valves, pumps and transducer and thermocouple and actuators, measuring gauges, pressure switches, solenoid valve and ion exchange resins and other rights and the importation of water treatment packages instruments : online various instruments, laboratory instruments 3, chemical water treatment, electro - deionization ( edi ) 4. complete sets of equipment, installation, commissioning and maintenance
公司主要經營: 1 、代理進口優質品牌電站輔機設備:含閥門、泵類、變送器、熱電偶、執行器、計量儀表、壓力開關、電磁閥、離子交換樹脂等; 2 、代理進口水處理成套儀器儀表:各類在線儀表、實驗室儀表; 3 、化水處理、電除鹽( edi ) 4 、設備成套安裝、調試、檢修。Secondly, the steel balls millstone is used to grind steel ball in ones steel ball factory, and process flocculus the steel balls that possess reticulate veins surface. measure the result as follows : ra ( surface roughness of steel ball ) = 0. 015 u m, wavmess = 0. 06 um, sph ( deviation from spherical form ) = 0. 010 u m, vdwl ( variation of ball lot diameter ) = 0. 015 u m
然後利用製成的鋼球研磨板對鋼球進行超精磨削加工,加工出了表面具有網狀紋理形貌的「絨面」鋼球,利用儀器測量鋼球表面的粗糙度值達到了0 . 015 m ,表面波紋度值達到了0 . 006 m ,圓度達到了0 . 010 m ,球批直徑變動量小於0 . 015 m 。With the deveiopment of hydraulic technology, hydraulic system and hydraulicequipment are more complicated, hydraulic technology is more widely and morecomp1icatedly used in agricultural machine and their malfunction is more difficu1t to bedetected. fault diagnosis of hydraulic system is not as apt to be observed as that of themechanical equipmeflt or is not as easy to be detected as that of electric equipmeflt bymu1tipurpose meter or other meters. flux meter gage and pressure gage ca n ' t meet the needof fault diagnosis for hydraulic system because its working medium and workingcomponents are hiding inside the sealed vessel
隨著液壓技術的發展,液壓系統及液壓設備越來越復雜,液壓技術在農機上的應用也變得廣泛而復雜,農機液壓系統的故障診斷也越來越困難,液壓系統的故障診斷不象機械設備那樣直觀,也不象電氣設備那樣通過萬用表等儀器測得,液壓系統的工作介質和工作部件都在密閉的容腔內,流量計、壓力表等測量儀器遠遠不能滿足故障診斷的需求。It would be highly advantageous to have instrumentation to directly measure structural strains and relative displacements.
如果能用儀器設備直接測量結構應變和相對位移將具有更大的優越性。2, the bearings production and processing equipment signal processing equipment, bearing cleaning equipment, packaging equipment bearings, the bearings production equipment, round instrument, blank processing equipment, double - end grinders, electric spindle and wheel grinding oilstone and other materials, printers marking machine measuring instrument, spherical roller processing equipment, raceway - seiki, roughness measuring instrument, the finish detector converter, hardness needle - sorting machine and new materials, lubricants, preservatives, cleaning agents, testing instruments
2軸承生產加工設備球加工設備軸承清洗設備軸承包裝設備軸承生產設備圓度儀毛坯加工設備雙端面磨床電主軸砂輪油石及其他研磨材料印字打標機加工測量儀球面滾子加工設備滾道超精機粗糙度測量儀光潔度檢測儀變頻器硬度針分選機及新型材料潤滑劑防腐劑清潔劑測試儀器等。Trying to measure what is happening with a scope or other instument is also problematical, because the instrument cables and input characteristics modify the network characteristics by their very presence when connected
試圖用測量儀或其他工具測試此時的系統變化也不太行得通,因為一旦儀器接入系統,它的測試線和輸入特性會改變系統電路的特徵。Summarize : multi - input, can be used cooperate with various sensors / transducers, measure 、 display and alarm control the physical quantities such as temperature 、 humidity 、 liquid level and flux # 118alues and transform them to export, can read and write all parameters via the computer through serial communication, besides it can offer 24vdc power supply for 2 - wire transducers, four - bit led displaying, the multi - segment curve correcting function is selectable, one meter can equip four alarm relay outputs 、 one transform ( or communication ) output and one equipped power supply outputs
萬能輸入,可與各類傳感器、變送器配合使用,實現溫度、濕度、壓力、液位、流量等物理量的測量、顯示、報警控制和變送輸出;通過串列通信口,可在上位計算機中實現全部儀表參數的讀寫;還可為兩線制變送器提供24vdc電源; 4位高亮度led數字顯示;對輸入信號有多段折線修正功能可選;一臺儀表最多可配4個報警繼電器輸出、一路變送(或通信)輸出和一路配電輸出。Accelerometer is used widely for measuring acceleration in civil and military field. at present, there are several type of accelerometers such as piezoelectricity electric charge accelerometer, ic piezoelectricity electric accelerometer, compressive resistance accelerometer and alteration capacitance accelerometer. the main part in alteration capacitance accelerometer is capacitance measurement circuit. foreign countries have produced accelerometer that have tiny volume and high performance. however, our country is not able to produce such accelerometer due to the lack of technique
加速度計作為一種測量加速度的儀器,在民用、軍用領域都有廣泛的應用。目前市場上的加速度計主要有壓電式電荷加速度計、集成電路式壓電加速度計、壓阻式加速度計、變電容式加速度計等幾種類型的加速度計。變電容式加速度計的設計中一個重要的環節就是電容檢測電路的設計。Di - on electric one of the beijing hi - new - tech enterprise develop and manufacture lots of equipment like sf6 dewpoint meter dp100, cable fault location system cfl6000 and more. di - on electric supply the most advanced technology and equipment on such as gis surge arrestor on line monitoring, resistance measuring, ac dc metrology, thermal - temperature bridge, power transformer diagnostic and testing, cable diagnostic and fault location, sf6and oil moisture measuring, oil treatment and testing, optic fiber temperature monitoring, circuit breaker testing, relay testing and more
迪揚電氣在gis和避雷器的帶電測試與故障診斷分析,電力電纜的故障定位與局放檢測,變壓器電抗器的各種測試診斷與溫度監測, sf6的水分測量與回收,絕緣油的測試分析與濾油處理,紅外測溫與光纖在線測溫,以及各種電阻測試與計量,溫度計量與電能計量等方面擁有世界一流的技術與成熟的儀器設備。Thirdly, in the environment of labview, several kinds of vis used for sensor signal test are designed, including wave generation, time domain measurement, filter disposal, frequency analysis, etc. after that, wavelet analysis in the application of one - dimensional signal de - noise is studied, threshold and translation invariance wavelet de - noise are realized, and wavelet de - noise vi for zero drift signal of the fiber optic gyro in fcs is designed using labview
接著,在labview環境下開發了多種用於傳感器信號測試的虛擬儀器,具有波形發生、時域測量、濾波處理、頻譜分析等多種功能。隨后,研究了小波分析在一維信號消噪中的應用,實現了labview環境下的閾值法和平移不變量法小波消噪,並利用labview設計了飛控系統中光纖陀螺零漂信號的小波消噪儀。The dynamic data of displacement, strain and impetus force acquired from the experimental collection system are also well analyzed for measuring precision and errors. based on the underlying work and experimental features, the thesis proposes a simple, practical and well accurate impetus resultant force fitting method, weighted factor fitting method. a line - off data processing software system for bird - impact experiment, named as cadabie, is well designed under the principle of software engineering, and has been applied, with high praise, in bird - impact laboratory in the factory numbered 320 and esfahan bird - impact laboratory of iran
本文系統總結了鳥撞實驗的全部過程、主要儀器設備的工作原理與性能參數,分析了鳥撞實驗動態數據採集系統中位移、應變與撞擊壓力傳感器測量系統的測量范圍、測量精度及其工作特點,提出了一種更適合鳥撞實驗的撞擊合力計算擬合方法:加權因子法,同時應用軟體工程原理編制了「鳥撞實驗計算西北工業大學博士論文機數據分析系統」 ( caoabie ) ,目前該軟體己經在320廠鳥撞實驗室以及In the first part of this thesis, the effect of nir instrument ' s energy level on the model predictive power was studied with maize sample
本文第一部分以玉米粉末樣品,用漫反射法測定玉米粗蛋白含量,研究了近紅外儀器能量變化對分析模型預測效果的影響。Results show that relative standard deviation ( rsd ) of prediction value will become larger from 2. 5 % to 4. 72 % with energy decreasing form 100 % to 18 %. it is demonstrated that energy will not significantly affect predictive power by analysis of variance, because 3 samples f - value is 1. 62, 3. 02 and 2. 23 that all less than critical value f0. 05 = 3. 35
不同能量下的預測值與化學值相關直線的t檢驗( = 0 . 05 )表明各相關直線均無顯著性差異;模型預測值的方差分析( = 0 . 05 )表明儀器能量變化並不會使未知樣品預測值產生顯著性差異。Nir spectra are also affected by many factors frequently, such as material shape, size, color, and instrument status. the instrument ' s energy is a factor that will affect the spectra
近紅外光譜本身也容易受樣品的形狀、大小、顏色和儀器狀態等參數的影響,其中儀器能量變化是一個重要影響參數。Reproducibility is the variation in the average of the measurements made by different appraisers using the same measuring instrument when measuring the identical characteristic on the same part
再現性是由不同的評價人採用相同的測量儀器,測量同一零件的同一特性時測量平均值的變差Some of the minute changes in the earth 's crust can be detected by means of instruments.
地殼一些微乎其微的變化,有的是可以通過儀器測量出來的。The interferometric strain gage offers a method for measuring strain without actual use of a gage.
干涉應變計提供了一種實際上不用儀器測量應變的方法。The hong kong observatory s study also reveals that the inter - annual change in the sea level in victoria harbour was particularly prominent in the past 15 years, with steep rise of the annual mean sea level from 1987 to 1999 and rapid fall after that. this period coincides with the most rapid rise in the global average temperatures since instrumental measurement of air temperatures began in the 1860s
天文臺的研究亦發現,維多利亞港海平面的年際變化在最近十多年最為顯著,年平均海平面在一九八七年至一九九九年急速上升,之後則急速下降,這正巧是人類自一八六年代開始以儀器測量氣溫以來全球平均溫度上升得最快的時候。分享友人