電容測微計 的英文怎麼說
中文拼音 [diànróngcèwéijì]
電容測微計
英文
capacitance micrometer-
Mems ( micro electromechanical system ) has become one of the most rapidly development technologies. along with the rapid development of mems techniques, capacitive sensor is used widely whose capacitance changes small, which has put forward the new request to the measurement technique. the common measure for capacitance measurement is that convert capacitance to voltage, electric current or frequency. the area of polar plate of the capacitor becomes smaller and smaller, and the total capacitance of micro capacitive sensor is usually several pico farad only. as a result, its change amount is smaller
Mems （ microelectromechanicalsystem ）近年來發展最快的技術之一，隨著mems技術的快速發展，電容式加速度計的電容變化變化量越來越小，對檢測技術提出了新的要求。在電容式傳感器中，常用電容檢測電路是將其轉換為電壓、電流或者頻率信號。目前的微型電容傳感器的極板面積變得越來越小，電容總量只有幾個pf ，變化量就更小。The main computer is programmed under windows, while the assistant computer is programmed under dos. the last, based on the idea of module - structure, the software of the testing system are designed, thus this software system is compatible and transplantable to design again. the experiment of measuring principle is taken : take the xy flat of lathe as the parallel - pole device and adjust the angle of sensor, the rotating - probe can test the felloe mould in scanning way
藉助虛擬儀器的思想，對測控系統進行了設計：採用光柵尺、光電編碼器測量可動部件的運動量，解析度高、誤差小；採用細分驅動的步進電機裝置，控制性能好；系統實施環境溫度的檢測、補償，提高了檢測精度；基於兩級微機組建測控系統：主機為人機界面，採用windows編程，從機用dos編程，實時性好；軟體設計採用兼容性和移植性好的模塊式結構，便於二次開發。The verify experiment proves that its ratio and phase characteristics are much better than ordinary ones and the precision is enough for measure use. zero - flux current transformer can ’ t obtain absolute zero flux because residuary flux, so when the secondary turns is too small it will not satisfying. to improve the precision further, proposes a method to compensate zero - flux current transformer using capacitance parallel connected coil and deduces it
為了進一步抵消剩餘磁通，提高互感器的精度，提出了一種並聯電容線圈補償零磁通的方法，並進行了理論推導，設計了基於該方法的100匝電流互感器，通過校驗證明它可以改善零磁通電流互感器的比差和角差特性，提高互感器的精度，將電流互感器的二次匝數由普通互感器的幾千匝降到了100匝，提高了測量微小電流的能力。Management content : the company product mainly covers the microscope, the tool maker ' s microscope, the projecting apparatus, the sclerometer, the thickness gauge, the magnifying glass, the balance, the measuring instrument quantity meter, the mapping equipment, the metering equipment, to test the instrument, the electrochemistry instrument, the physical instrument, the analytic instrument, the biochemistry instrument, the non - destructive inspection, the medical instrument, the processing machinery and so on altogether 28 broad headings, 170 minor sort large - scale specialized precision instrument measuring appliance sale enterprises
經營內容：公司產品主要涵蓋顯微鏡、工具顯微鏡、投影儀、硬度計、測厚儀、放大鏡、天平、量具量儀、測繪儀器、測量儀器、實驗儀器、電化學儀器、物理儀器、分析儀器、生化儀器、無損檢測、醫療器械、加工機械等共28大類， 170餘個小類的大型專業精密儀器儀表銷售企業。4. the thrust measurement device was calibrated, and the accuracy was 2 % fs. at the same time the signal of thrust measurement was input to the computer. e - type chromel - constantan thermocouple was used to measure the temperature of mpt, and the accuracy was 5 % fs. the vacuum measurement was realized by using zdf - 5427m vacuometer, and the accuracy was 3 % fs
（ 4 ）對推力測量系統進行了標定並實現了計算機採集，推力測量系統最大相對誤差為2 fs ；溫度測量目前還只限於對mpt諧振腔壁溫的測量，使用e型鎳鉻?康銅熱電偶即可較容易實現，其測量精度為5 fs ；真空測量採用zdf - 5427m微機型復合真空計，其由熱偶計和熱陰極電離計復合而成，該真空計測量控制精度為3 fs 。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。The main works are listed as follows : ( 1 ) the small capacitance measuring circuit for ect based on the charge amplification principle was deeply analyzed and improved. the stray - immunity and the charge injection effect of this circuit were deeply analyzed. the influence of the charge injection effect was eliminated by practical time sequences and circuit structure differential
本文的主要工作和創新點如下： （ 1 ）對基於電荷放大原理的微弱電容測量電路進行了深入的分析和改進，深入分析了該電路的抗雜散電容性能及電荷注入效應問題，通過時序的合理設計消除了電荷注入效應等因素對測量結果的影響，改進了該電路的數學模型。In the paper, prescale technology, interpolate method, averaging method and multiple period synchronization method are used to measure the frequency accurately. diode demodulating technology, and power attenuated method or probe coupling & water load technology are employed to measure the power of high power microwave. isothermal technology is used to improve the stability of demodulator and to expend the range of square linear region
本文採用預分頻法、內插法、多周期同步法、平均法實現了頻率的精確測量;利用二極體檢波技術，結合衰減法或探針耦合+水負載技術實現了大功率微波功率的測量;採用恆溫技術提高了二極體檢波器穩定度;完成了單片機串口通信協議設計和系統電磁兼容的分析和設計。In this paper, a high integrated and intelligent digital dsp - spm system is developed based on the nspm6800 spm manufactured by the beijing zhongke mechanical & electrical equipment co. at present, the pc of spm system is burdened with not only sending and receiving data, but also disposing of image, which hinders the enhancement of speed of the system. in addition, as the function of spm is expanding, including tappingmode afm, efm, mfm, scm, etc, one hand, it amplifies the range of the application of spm, on the other hand it also means that the task of autocontrol and data transfer heavier. the advantages offered by the dsp compared to analog systems include considerable flexibility in the choice of the signal processing algorithm and greater ease in managing control parameters by the host computer, which are very important for the improvement of spm
本課題以北京市中科機電設備公司的nspm - 6800型掃描探針顯微鏡為基礎，重新設計了以dsp為控制核心的控制系統，主要解決原系統存在的以下問題： （ 1 ） pc機既要實時控制數據的採集與發送，又要進行圖像的后處理，整個系統的實時性難以達到要求； （ 2 ）隨著spm功能的擴展，一方面包括輕敲式原子力顯微鏡、電場力、磁場力、掃描容場顯微鏡等技術在內的spm技術擴展了儀器的測試范圍和功能，另一方面也意味著自動控制量的增加和數據處理量的增加； （ 3 ） 16位a d 、 d a都採用的是購買的板卡，也通過isa槽插在pc機內，成本高，不利於擴展； （ 4 ）另外，數字板通過isa槽插在pc機內，易受于擾，而且給安裝帶來不便。Analyses and calculate the sensitivity of the system, and the interference of the laser emitting system to the weak signal detection system 11 is restricted, the error rate of the system is reduced, and the sensitivity of the laser communication system is enhanced by the means of the electromagnetism compatible technique
對系統的靈敏度進行了分析與計算，並利用電磁兼容控制技術，抑制了激光發射系統對微弱光電信號檢測系統的干擾，降低了系統的出錯率，提高了激光通信系統的靈敏度。Data inputting and graphinputting module respectively achieve data inputting of first system and electric firstwiring diagram inputting ; secondary scheme design module realizes scheme design ofsecondary loops including control, protection, signal, measure, automotive equipment, operation electrical source and electrical source for substation and power distributionstation, using rule - cased reasoning of expert system ; protective relaying settingcalculation module realizes setting calculation for first equipments which aretransformers, circuitries, capacitors, and electromotors ; secondary equipmentselection module realizes type selection of secondary microcomputer integratedequipments ; graph making out module realizes secondary drawings making outautomatically representing design production using case - cased reasoning of expertsystem and the drawings can be edited and modified under the secondary developedautocad environment
數據輸入和圖形輸入模塊分別完成一次系統資料錄入和電氣主接線圖的輸入;二次方案設計模塊利用專家系統基於規則的推理實現變配電所各二次迴路的方案設計，包括控制、保護、信號、測量、自動裝置、操作電源和所用電源;繼電保護整定計算模塊實現主設備的整定計算，包括變壓器、線路、電容器和電動機;二次設備選型模塊實現二次微機成套裝置的型號選擇;圖形生成模塊利用專家系統基於實例的推理實現代表設計成果的各類二次圖紙的自動生成，生成的圖紙可以在二次開發的autocad環境下進行編輯和修改。This paper aims to finish the electronic interface circuit of the tuning fork micromechanical gyroscope detected by capacitance to ensure the vibrating of the gyroscope and to detect and process the signals
本文針對音叉電容式微機械陀螺的介面電路設計、穩幅諧振、微弱信號檢測和處理等問題開展研究。In the second chapter, equivalent circuit of the eddy current sensor is firstly analyzed. based on that, the carrier signal generating circuit that is realized by the lc periodic circuit is introduced, thus, the carrier signal of standard frequency is obtained through the trimming capacity. subsequently, the disc type rotational armature generator and the rotational coupling transformer are separately leaded in to realize the power supplies of the carrier signal generating circuit and output of the measuring signal
在傳感器設計一章中，首先對渦流傳感器進行等效電路分析，在此基礎上分析了由電感、電容諧振電路構成的載波信號發生電路，並通過微調電容獲得了標準頻率的載波信號；接下來提出了採用盤式旋轉電樞發電機解決載波信號發生電路電源供給問題的方案，同時通過旋轉耦合變壓器的引入，使得測量信號輸出問題很好地解決；本章最後給出的一組實驗曲線充分說明了這一方案的可實現性。This paper aims at designing a relaxation oscillator which is used in the readout circuits for silicon capacitive accelerometers with cmos process
採用cmos工藝設計出應用在微硅電容加速度傳感器單片測試電路中的弛張振蕩器即是本文的主要研究目的。In this paper, we introduce the methods to test the tiny capacitors and analyse the principle of relaxation oscillator used in the readout circuits for silicon capacitive accelerometers. to form a complete relaxation oscillator, we design the current source 、 the switch 、 the control logic and the comparator
本文介紹了微小電容的各種測試方法，分析了採用弛張振蕩器進行測試的原理，並設計出了構成弛張振蕩器所需的電流源、電流開關、控制邏輯以及比較器。Focusing on a tuning fork vibratory gyroscope fabricated through silicon bulk micromachining, the matrix perturbation technology in the random finite element method was introduced to analyze the statistical characteristics of the natural frequencies and output capacitance of tuning fork vibratory gyroscope
摘要以一種通過體微機械加工技術制備的音叉振動式微機械陀螺為對象，基於隨機攝動技術定量計算了微陀螺固有頻率變異和檢測輸出電容變異的統計特徵，以概率思想表達了微陀螺批量加工過程所帶來的材料尺寸隨機誤差對其性能的影響。The thesis puts forward a new computer supervising plan of it. the new automatic test system sets up on a principal _ subordinate computer network composed of four microprocessor of 89c51 and one computer compatible with ibm pc. it combines traditional motor test theory with modern detecting and controlling technology of computer. the software of the automatic test system is programmed mainly with visual c + + language, using object oriented programming ( oop ) methods. the system has a mutual graph supervising interface, and it has the advantages of simple operation and high liability and easy maintaining
本論文提出了一個新型電機自動測試系統的計算機監控部分設計方案，它建立在由89c51單片機和與ibm - pc兼容的計算機組成的主從式計算機網路上。上位機把現代化的微機測控技術和傳統的電機測試理論相結合，用visualc + + 6 . 0作為開發工具，採用面向對象編程技術，設計出操作簡單、可靠性高、可維護性好、具有互動式的圖形界面的測試監控系統。Based on mos capacitive oxygen micro - sensor, the structure of mosfet oxygen micro - sensor was presented. the heater and temperature sensor are integrated into the device
以mos電容式氧氣微傳感器的分析為基礎，設計mosfet氧氣微傳感器結構，在器件中集成了加熱元件和測溫元件。( 2 ) hardware design of difference frequency capacitance measurement circuit, including the structure of sensor, analysis on several relative measurement circuits, periphery circus design. debugs and practically measures it
（ 2 ）進行了差頻式電容測量電路的硬體設計，主要包括：傳感器結構設計，各種微小電容檢測電路的對比分析，差頻式檢測電路設計，溫度檢測電路設計以及存儲電路設計。In this paper, author goes deep into analysing dielectric property of grain in theory, and brings forward a difference frequency capacitance measurement method based on the analyse of several micro - capacitance measurement methods. at the same time, a mathematics model of moisture measurement is given, which depends on data merging surround moisture, difference frequency, temperature and weight by multi - element regression
在本次畢業設計中，作者對此進行了較為深入、系統的研究，從理論上分析了糧食的介電特性，在對比分析了幾種微小電容測量方法的基礎上採用了差頻式電容測量方法，並採用多元回歸分析法對水分、差頻、溫度、重量四種測量數據進行了數據融合，提出了糧食水分測量的數學模型。分享友人