element n. 1.要素;成分;(構成)部分;分子。 2.【化學】元素;【數(shù)學】元,素;【機械工程】單元;單體;【無線電】元件;【植物;植物學】原種。 3.【電學】電池;電極;電阻絲。 4.生存環(huán)境,活動范圍;本行,本領。 5.〔pl.〕原理;初步;大綱。 6.〔pl.〕自然力;暴風雨。 7.【軍事】小隊,分隊。 8.〔pl.〕【宗教】(圣餐用)面包和葡萄酒。 the four elements (古希臘哲學家認為組成世界的地、水、火、風)四元素。 discontented elements 不平分子。 daughter element 【物理學】子元素。 control element 控制元件。 the elements of grammer 語法基礎。 in one's element 在自己(活動)天地內,如魚得水。 out of one's element 在自己活動天地外,不得其所,格格不入。 strife [war] of the elements 暴風雨。
active sensor 有源傳感器; 有源遙感器; 織式遙感器; 主動式傳感器; 主動式遙感器 能動型
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Pb8400 series silicon pressuer transmitters use the sensor elements with high acuracy , staility and measure the pressure of the liquid or gas the level of the liquid , then change into420maelectric signal 用于測量液體或氣體的壓力及各種液體的液位,并把壓力或液位轉換成標準電信號的現(xiàn)場遠傳壓力及液位測量儀表。
Pb8300 series slries silicon pressure transmitters use the sensor elements with high accuracy , stability and reliability and measure the pressure of the liquid or gas or the level of the liquid , then change into 420ma electric signal 用于測量液體或氣體的壓力及各種液體的液位,并把壓力或液位轉換成標準電信號的現(xiàn)場遠傳壓力及液位測量儀表。
The optimum is obtained after computing and the optimization result indicates that the method is efficient to optimize the elastic element structure . so it could be applied extensively in the engineering of the sensor element optimization design 優(yōu)化結果表明該方法對傳感器的彈性元件結構起到很好的優(yōu)化效果,該方法可廣泛應用于傳感器彈性元件的優(yōu)化設計工程。
For such calibrations it is necessary that the sensor element be mounted and sealed in a glass sheath so that the distance from the tip of the element to the bottom of the head of the thermometer is at least 450 mm , and the diameter of the glass sheath should not be greater than 8 mm 進行上述校正時,感溫元件必須裝于及密封于一玻璃套內,而該感溫元件的尖端與溫度計把手部份的底部最少距離450毫米,該玻璃套的直徑不得超過8毫米。
Pb8200 series silicon presure transmitters use the sensor elements wih high accuracy , stability and reliability and measure the pressure of the liquid or gas or the level of the liquid , then change into 420ma electric signal Pb8200系列擴散硅式壓力變送器選用了高精度高穩(wěn)定性和高可靠性的擴散硅壓力傳感器,外形小巧,主要用于測量液體氣體的壓力及各種液體的液位,并把壓力信號轉換成420ma或15v等電信號,是一種現(xiàn)場遠傳壓力測量儀表。
Then , a micro - machined array of optical pressure sensor has been discussed ; each sensor element in the array consists of a fabry - perot etalon fabricated from single - crystal silicon ; sensor ' s performance has been increased through improved the structure , and can makeup the arrays which be suitable for the smart - skin 其次,本文對一種傳統(tǒng)的法布里一帕羅標準具型光纖壓力傳感器(該傳感器陣列的每一單元均由單晶硅制造而成的法布里一怕羅標準具組成)進行了結構設計和性能分析。
Optical gains as large as one million are used to achieve the high sensitivities required in current electro - optical sensors . these large optical gains make the detector the most susceptible sensor element to laser damage . people concerns that the influence to the quality of ccd camera image under laser irradiation , the laser - induced threshold of ccd detector and the evaluation of laser - induced effects 光電探測器具有極強的目標探測能力,而激光具有極高的亮度;因而各類光電裝備的光電探測器成為國外發(fā)達國家正在大力發(fā)展激光武器系統(tǒng)的首要攻擊目標,激光對探測器的干擾與損傷程度如何、受干擾后能否繼續(xù)正常工作、何時達到損傷閾值以及如何對干擾效果做出客觀評價是人們非常關心的問題。
Pb8500 series silicon pressure transmitters are high medium temperature industrial pressure transmitters , which use the sensor elements with high accuracy , stability and reliability . the products are the scene remote measuement metres that measure the pressure of he liquid or gas or the level of the liquid in the high temperature , then change into standard electric signal 其測量介質溫度可高達125 。選用高精度高穩(wěn)定性和高可靠性的擴散硅壓力傳感元件。用于測量液體或氣體的壓力及各種液體的液位,并把壓力或液位轉換成標準電信號的現(xiàn)場遠傳壓力及液位測量儀表。
Based on an amplified spontaneous emission ( ase ) source , a ring - cavity fiber laser , in which sensor element acted as the reflector of the cavity , was achieved with high - signal noise ratio ( snr ) and high - power . it was demonstrated that the output power was maximum , when output coupler ratio of the coupler was seventy percent 實驗證實耦合器的輸出耦合比選為某一個最佳值70 ,當980nm泵光工作電流為50ma時,其輸出功率達3 . 5mw ,且輸出激光波長與作為反射鏡的光纖光柵中心波長相同。
And the interfaces have analog input , analog output and digital input / output . we have used differently cards , such as pc - 6330d a / d card , pcl - 728 d / a card based isa bus , ipc - 5375 i / o card and so on . in addition , we select micro - stir switches and pressure sensors as sensor elements to inspect the system and choose relays and induction valves to control the bicycle pump and the motor 總線采用isa內部總線;接口主要有模擬量輸入接口、模擬量輸出接口、開關量輸入輸出接口等,課題分別選用pc - 6330d型a d板卡、基于isa總線的型號為pcl - 728的d a板卡、型號為ipc - 5375的i o板卡;另外,課題選用了微動式行程開關、壓力變送器作為傳感元件檢測系統(tǒng),選用繼電器、電磁控制換向閥實現(xiàn)對氣缸、電機的控制;采用vc + + 6 . 0編制控制軟件,實現(xiàn)了纖維鋪放技術的計算機控制。