sensor crystal 中文意思是什麼

Using domestic strained integrated resistor as weighing sensor, at89c52 single chip as control unit, combined with arithmetical magnification, analogtodigital conversion ( a / d ), real time clock, liquid crystal display ( lcd ), and series communication interface, a minitype automatic weighing lysimeter is developed. that made measurement of evapotranspiration become conveniently and effectively in studying on water use of crops

為了方便、有效地測定植物的蒸散，為水分利用研究提供價廉物美、簡單易用的儀器，本研究利用國產的集成電阻應變式稱重傳感器，採用at89c52單片機作為控制單元，結合運算放大、模數轉換、實時時鐘、液晶顯示、數據存儲、串列通信等外圍介面電路，研製了小型自動稱重式蒸散儀。

The application of quartz crystal sensor system in instrument testing field was reviewed in this paper

摘要回顧了石英晶體傳感器系統在檢測領域的應用。

Crystal oscillator circuit of eddy current sensor and its application in liquid resistant digital caliper

定頻調幅式電渦流傳感器電路及其在防水數顯卡尺中的應用

According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。

Quartz crystal unit humidity transducer sensor

晶體振子式濕度傳感器

Electrodeposition and crystal structure of zno piezoelectric film for optical fiber sensor

壓電層電沉積機理及結晶結構的研究

It is an effective way to solve this problem by combining piezoelectric quartz crystal sensor array with chemometrics. however, there were few reports in designing electric circuit, which would influence the response due to mutually interfering between oscillators. so, it is necessary to design a vibration circuit and develop it into small and convenient instrumentation to overcome this limitation

另一方面，單一的具有選擇性的傳感器在實際多組分氣體的檢測中受到限制，而採用壓電石英傳感器陣列再結合化學計量學手段進行數據處理卻是解決這個問題的一個有效途徑，然而在它的電路設計方面，由於共振電路間的相互影響，使檢測受到很大幹擾，因此設計一個相互無干擾的起振裝置來解決這個問題是十分有必要的。

Abstract : thermochromic liquid crystal infrared imaging system includes a thermochromic liquid crystal infrared sensor, a chopper, controller, a light source, lens, liquid crystal phase plate, optical system, a charge coupled device ( ccd ) array, and microprocessor. the operation and performance of the thermochromic liquid crystal infrared imaging system are described

文摘:紅外攝像系統包括熱色液晶紅外傳感器、斬波器、控制器、光源、透鏡、液晶相位推移器、微處理器、光學系統、 ccd陣列等，描述了熱色液晶紅外攝像系統的工作原理和特性。

This system is an attempt that to measure white image luminance and chrominance of crt color tv and non crt color tv with cmos image sensor, and then to realize to auto white balance to crt color tv, liquid crystal tv with it

這套系統是利用彩色cmos圖像傳感器對crt和非crt電視機進行白場測量，繼而實現對crt彩色電視機、液晶彩色電視機、各種背投電視進行自動白平衡調整的一個新嘗試。

Piezoelectric quartz crystal ( pqc ) sensor has found its extensive application in various fields including analytical chemistry, life science, pharmaceutical chemistry, membrane science, surface science, and environmental monitoring because of its outstanding advantages such as high sensitivity, simple construction, convenient operation and low cost, etc. however, due to its broad sensing - spectrum, the selectivity of pqc is poor

壓電石英晶體（ pqc ）傳感器因其具有靈敏度高、結構簡單、操作方便、成本低廉等優點而廣泛應用於分析化學、生命科學、藥物科學、表面科學、膜科學和環境科學等諸多領域。然而其響應具有廣譜性，選擇性能差。

This paper firstly makes experience study of grain flow dynamic measurement for combines in china. piezoelectric crystal sensor used in impulse measurement method is a try and has not been presented in any reports

本文在國內率先進行了穀物流量動態在線測量方法的試驗研究，並嘗試性地將壓電晶體傳感器用於沖量式穀物流量測量方法中，這在國內外均未見報道。

Then the article specifies the control principle of the infrared sensor, the dust warehouse detection, the collision detection, the floating switch, the speedometer, the edge - walking detection, the keyboard, the liquid crystal display as well as the vacuum motor, the brush motor, the driver motor and etc. in the software design aspect, through analyzing the link between the bottom hardware and path coverage planning algorithm, it actualizes pid adjustment algorithm for the robot ’ s straight walking, the coordinate transformation and computation of speedometer ’ s return value, providing the basis for the route coverage algorithm

然後，詳細說明了紅外傳感器，塵倉檢測，碰撞檢測，浮動開關，里程計，貼邊行走檢測、鍵盤、液晶顯示以及吸塵電機、毛刷電機、主動輪驅動電機等控制原理。在軟體設計方面，通過分析底層與路徑規劃演算法的銜接，實現了機器人直行pid校正演算法、里程計返回值的坐標變換及計算等演算法，為路徑覆蓋演算法提供依據。

Finally, the paper also describes method and result of experiment based on above mention. the result of experiment prove that there is a excellent linear relationship between three - axis force applying to sensor head and the change of four quartz crystal plates, which indicate that the three - axis force tactile sensing technology applying piezoelectricity of quartz crystal is scientific and feasible

本課題製作了這種傳感器，並設計了三軸力的加載裝置對傳感器進行了實驗，結果顯示力的三個分量與四片壓電石英晶體之間有良好的線性關系，驗證了壓電三軸力觸覺傳感器技術是科學的、可行的。

The studies made in the thesis are summarized as follows : 1. a series piezoelectric quartz crystal ( spqc ) sensor has been applied to detect l - glutamic acid and l - lysine. the effect of formaldehyde on the frequency shift was studied

本學位論文研究工作總結如下：一、利用串聯式壓電石英傳感器對電導的靈敏響應用兩種方法對l -谷氨酸和l -賴氨酸進行了定量測定，並探討了甲醛溶液濃度對測定的影響。

While integrating with the characteristics of microbial growth and biological reaction, this thesis presents a theoretical and applied study of several new system based on the response of one - face contacting liquid piezoelectric quartz crystal sensor to the viscosity and density of solution, and the response of spqc sensor to the conductivity of the solutioa the creative works are summarized four aspects as follows : 1

本文充分利用單面觸液型壓電傳感技術對溶液粘度和密度的響應以及串聯式聲波傳感器（ spqc ）對溶液電導率和介電常數的響應，與微生物生長和生化反應特徵相結合，對幾個新的體系進行了理論與應用方面的研究。在下述四個方面取得了一些創新性的成果： 1

A design method of high precision optical micro - displacement sensor based on birefringent interference theory of crystal is presented in this paper. the detailed analytical process of the measurement method is discussed and the theoretical model of the optical micro - displacement is provided. in the end, experimental results are shown

論文介紹了一種基於晶體雙折射理論的高精度光學微位移傳感器的設計方法，對測量方案進行了詳細的理論分析，給出了該光學位移傳感器的理論模型，並在論文結尾給出了實驗結果：測量精度為5 m ，工作距離不小於40mm 。

It is comprised of a sensor head ( a quadrangular pyramid tip, a base, four quartz crystal plates ) and a network analyzer and an apparatus to apply three - axis force. according to mechanics, four plates of the quadrangular pyramid tip correspondingly receive four one - dimension forces when applying a three - axis force to the sensor head. because quartz crystal has a force - frequency effect, namely, resonance frequency change of the quartz crystal is in direct proportion to one - dimension forces applying to it, four certain resonance frequency changes of the four quartz crystal plates are corresponding to a three - axis force

當傳感頭受三軸力作用時，根據力學的分析可以確定三軸力與四角錐體四個面上單向力之間的對應關系，用分別貼在四角錐體四個面上的四片壓電石英晶體作為壓敏元件，由於石英晶體的力頻效應（即石英晶體在受到應力作用時，它的諧振頻率與應力大小成正比） ，從而最終確定了四片石英晶體的諧振頻率改變量與傳感頭上所受三軸力大小和方向之間的對應關系。

5. an optimized piezoelectric quartz crystal sensor array has been designed and assembled by using five individual vibration electrical circuits

採用5個單獨的振蕩電路，設計並組裝了一種具有優化電路的壓電傳感器陣列裝置。

Silicon crystal gas sensor

碳單晶氣敏元件

In our experimentation, we combine fiber bragg grating with tb - dy - fe single crystal, we can measure the current which produces the magnetic field when we measure the shift of bragg wavelength because of magnetostrictive strain of tb - dy - fe single crystal in magnetic field, we also study the relation between bias field, strain of current sensor

本實驗將光纖布拉格光柵與tb - dy - fe結合起來，利用tb - dy - fe在磁場下的伸縮引起布拉格波長的改變，來測量產生磁場的待測電流的大小。在實驗中我們還研究了偏場，預應力與傳感器的關系，在這個過程中我們找到了與傳感器有關的最佳設計參數。